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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> | |
44 | #include <linux/if_vlan.h> | |
45 | #include <linux/init.h> | |
46 | #include <linux/log2.h> | |
47 | #include <linux/mdio.h> | |
48 | #include <linux/module.h> | |
49 | #include <linux/moduleparam.h> | |
50 | #include <linux/mutex.h> | |
51 | #include <linux/netdevice.h> | |
52 | #include <linux/pci.h> | |
53 | #include <linux/aer.h> | |
54 | #include <linux/rtnetlink.h> | |
55 | #include <linux/sched.h> | |
56 | #include <linux/seq_file.h> | |
57 | #include <linux/sockios.h> | |
58 | #include <linux/vmalloc.h> | |
59 | #include <linux/workqueue.h> | |
60 | #include <net/neighbour.h> | |
61 | #include <net/netevent.h> | |
62 | #include <asm/uaccess.h> | |
63 | ||
64 | #include "cxgb4.h" | |
65 | #include "t4_regs.h" | |
66 | #include "t4_msg.h" | |
67 | #include "t4fw_api.h" | |
68 | #include "l2t.h" | |
69 | ||
70 | #define DRV_VERSION "1.0.0-ko" | |
71 | #define DRV_DESC "Chelsio T4 Network Driver" | |
72 | ||
73 | /* | |
74 | * Max interrupt hold-off timer value in us. Queues fall back to this value | |
75 | * under extreme memory pressure so it's largish to give the system time to | |
76 | * recover. | |
77 | */ | |
78 | #define MAX_SGE_TIMERVAL 200U | |
79 | ||
7ee9ff94 CL |
80 | #ifdef CONFIG_PCI_IOV |
81 | /* | |
82 | * Virtual Function provisioning constants. We need two extra Ingress Queues | |
83 | * with Interrupt capability to serve as the VF's Firmware Event Queue and | |
84 | * Forwarded Interrupt Queue (when using MSI mode) -- neither will have Free | |
85 | * Lists associated with them). For each Ethernet/Control Egress Queue and | |
86 | * for each Free List, we need an Egress Context. | |
87 | */ | |
88 | enum { | |
89 | VFRES_NPORTS = 1, /* # of "ports" per VF */ | |
90 | VFRES_NQSETS = 2, /* # of "Queue Sets" per VF */ | |
91 | ||
92 | VFRES_NVI = VFRES_NPORTS, /* # of Virtual Interfaces */ | |
93 | VFRES_NETHCTRL = VFRES_NQSETS, /* # of EQs used for ETH or CTRL Qs */ | |
94 | VFRES_NIQFLINT = VFRES_NQSETS+2,/* # of ingress Qs/w Free List(s)/intr */ | |
95 | VFRES_NIQ = 0, /* # of non-fl/int ingress queues */ | |
96 | VFRES_NEQ = VFRES_NQSETS*2, /* # of egress queues */ | |
97 | VFRES_TC = 0, /* PCI-E traffic class */ | |
98 | VFRES_NEXACTF = 16, /* # of exact MPS filters */ | |
99 | ||
100 | VFRES_R_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF|FW_CMD_CAP_PORT, | |
101 | VFRES_WX_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF, | |
102 | }; | |
103 | ||
104 | /* | |
105 | * Provide a Port Access Rights Mask for the specified PF/VF. This is very | |
106 | * static and likely not to be useful in the long run. We really need to | |
107 | * implement some form of persistent configuration which the firmware | |
108 | * controls. | |
109 | */ | |
110 | static unsigned int pfvfres_pmask(struct adapter *adapter, | |
111 | unsigned int pf, unsigned int vf) | |
112 | { | |
113 | unsigned int portn, portvec; | |
114 | ||
115 | /* | |
116 | * Give PF's access to all of the ports. | |
117 | */ | |
118 | if (vf == 0) | |
119 | return FW_PFVF_CMD_PMASK_MASK; | |
120 | ||
121 | /* | |
122 | * For VFs, we'll assign them access to the ports based purely on the | |
123 | * PF. We assign active ports in order, wrapping around if there are | |
124 | * fewer active ports than PFs: e.g. active port[pf % nports]. | |
125 | * Unfortunately the adapter's port_info structs haven't been | |
126 | * initialized yet so we have to compute this. | |
127 | */ | |
128 | if (adapter->params.nports == 0) | |
129 | return 0; | |
130 | ||
131 | portn = pf % adapter->params.nports; | |
132 | portvec = adapter->params.portvec; | |
133 | for (;;) { | |
134 | /* | |
135 | * Isolate the lowest set bit in the port vector. If we're at | |
136 | * the port number that we want, return that as the pmask. | |
137 | * otherwise mask that bit out of the port vector and | |
138 | * decrement our port number ... | |
139 | */ | |
140 | unsigned int pmask = portvec ^ (portvec & (portvec-1)); | |
141 | if (portn == 0) | |
142 | return pmask; | |
143 | portn--; | |
144 | portvec &= ~pmask; | |
145 | } | |
146 | /*NOTREACHED*/ | |
147 | } | |
148 | #endif | |
149 | ||
b8ff05a9 DM |
150 | enum { |
151 | MEMWIN0_APERTURE = 65536, | |
152 | MEMWIN0_BASE = 0x30000, | |
153 | MEMWIN1_APERTURE = 32768, | |
154 | MEMWIN1_BASE = 0x28000, | |
155 | MEMWIN2_APERTURE = 2048, | |
156 | MEMWIN2_BASE = 0x1b800, | |
157 | }; | |
158 | ||
159 | enum { | |
160 | MAX_TXQ_ENTRIES = 16384, | |
161 | MAX_CTRL_TXQ_ENTRIES = 1024, | |
162 | MAX_RSPQ_ENTRIES = 16384, | |
163 | MAX_RX_BUFFERS = 16384, | |
164 | MIN_TXQ_ENTRIES = 32, | |
165 | MIN_CTRL_TXQ_ENTRIES = 32, | |
166 | MIN_RSPQ_ENTRIES = 128, | |
167 | MIN_FL_ENTRIES = 16 | |
168 | }; | |
169 | ||
170 | #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \ | |
171 | NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\ | |
172 | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) | |
173 | ||
174 | #define CH_DEVICE(devid) { PCI_VDEVICE(CHELSIO, devid), 0 } | |
175 | ||
176 | static DEFINE_PCI_DEVICE_TABLE(cxgb4_pci_tbl) = { | |
177 | CH_DEVICE(0xa000), /* PE10K */ | |
178 | { 0, } | |
179 | }; | |
180 | ||
181 | #define FW_FNAME "cxgb4/t4fw.bin" | |
182 | ||
183 | MODULE_DESCRIPTION(DRV_DESC); | |
184 | MODULE_AUTHOR("Chelsio Communications"); | |
185 | MODULE_LICENSE("Dual BSD/GPL"); | |
186 | MODULE_VERSION(DRV_VERSION); | |
187 | MODULE_DEVICE_TABLE(pci, cxgb4_pci_tbl); | |
188 | MODULE_FIRMWARE(FW_FNAME); | |
189 | ||
190 | static int dflt_msg_enable = DFLT_MSG_ENABLE; | |
191 | ||
192 | module_param(dflt_msg_enable, int, 0644); | |
193 | MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T4 default message enable bitmap"); | |
194 | ||
195 | /* | |
196 | * The driver uses the best interrupt scheme available on a platform in the | |
197 | * order MSI-X, MSI, legacy INTx interrupts. This parameter determines which | |
198 | * of these schemes the driver may consider as follows: | |
199 | * | |
200 | * msi = 2: choose from among all three options | |
201 | * msi = 1: only consider MSI and INTx interrupts | |
202 | * msi = 0: force INTx interrupts | |
203 | */ | |
204 | static int msi = 2; | |
205 | ||
206 | module_param(msi, int, 0644); | |
207 | MODULE_PARM_DESC(msi, "whether to use INTx (0), MSI (1) or MSI-X (2)"); | |
208 | ||
209 | /* | |
210 | * Queue interrupt hold-off timer values. Queues default to the first of these | |
211 | * upon creation. | |
212 | */ | |
213 | static unsigned int intr_holdoff[SGE_NTIMERS - 1] = { 5, 10, 20, 50, 100 }; | |
214 | ||
215 | module_param_array(intr_holdoff, uint, NULL, 0644); | |
216 | MODULE_PARM_DESC(intr_holdoff, "values for queue interrupt hold-off timers " | |
217 | "0..4 in microseconds"); | |
218 | ||
219 | static unsigned int intr_cnt[SGE_NCOUNTERS - 1] = { 4, 8, 16 }; | |
220 | ||
221 | module_param_array(intr_cnt, uint, NULL, 0644); | |
222 | MODULE_PARM_DESC(intr_cnt, | |
223 | "thresholds 1..3 for queue interrupt packet counters"); | |
224 | ||
225 | static int vf_acls; | |
226 | ||
227 | #ifdef CONFIG_PCI_IOV | |
228 | module_param(vf_acls, bool, 0644); | |
229 | MODULE_PARM_DESC(vf_acls, "if set enable virtualization L2 ACL enforcement"); | |
230 | ||
231 | static unsigned int num_vf[4]; | |
232 | ||
233 | module_param_array(num_vf, uint, NULL, 0644); | |
234 | MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3"); | |
235 | #endif | |
236 | ||
237 | static struct dentry *cxgb4_debugfs_root; | |
238 | ||
239 | static LIST_HEAD(adapter_list); | |
240 | static DEFINE_MUTEX(uld_mutex); | |
241 | static struct cxgb4_uld_info ulds[CXGB4_ULD_MAX]; | |
242 | static const char *uld_str[] = { "RDMA", "iSCSI" }; | |
243 | ||
244 | static void link_report(struct net_device *dev) | |
245 | { | |
246 | if (!netif_carrier_ok(dev)) | |
247 | netdev_info(dev, "link down\n"); | |
248 | else { | |
249 | static const char *fc[] = { "no", "Rx", "Tx", "Tx/Rx" }; | |
250 | ||
251 | const char *s = "10Mbps"; | |
252 | const struct port_info *p = netdev_priv(dev); | |
253 | ||
254 | switch (p->link_cfg.speed) { | |
255 | case SPEED_10000: | |
256 | s = "10Gbps"; | |
257 | break; | |
258 | case SPEED_1000: | |
259 | s = "1000Mbps"; | |
260 | break; | |
261 | case SPEED_100: | |
262 | s = "100Mbps"; | |
263 | break; | |
264 | } | |
265 | ||
266 | netdev_info(dev, "link up, %s, full-duplex, %s PAUSE\n", s, | |
267 | fc[p->link_cfg.fc]); | |
268 | } | |
269 | } | |
270 | ||
271 | void t4_os_link_changed(struct adapter *adapter, int port_id, int link_stat) | |
272 | { | |
273 | struct net_device *dev = adapter->port[port_id]; | |
274 | ||
275 | /* Skip changes from disabled ports. */ | |
276 | if (netif_running(dev) && link_stat != netif_carrier_ok(dev)) { | |
277 | if (link_stat) | |
278 | netif_carrier_on(dev); | |
279 | else | |
280 | netif_carrier_off(dev); | |
281 | ||
282 | link_report(dev); | |
283 | } | |
284 | } | |
285 | ||
286 | void t4_os_portmod_changed(const struct adapter *adap, int port_id) | |
287 | { | |
288 | static const char *mod_str[] = { | |
a0881cab | 289 | NULL, "LR", "SR", "ER", "passive DA", "active DA", "LRM" |
b8ff05a9 DM |
290 | }; |
291 | ||
292 | const struct net_device *dev = adap->port[port_id]; | |
293 | const struct port_info *pi = netdev_priv(dev); | |
294 | ||
295 | if (pi->mod_type == FW_PORT_MOD_TYPE_NONE) | |
296 | netdev_info(dev, "port module unplugged\n"); | |
a0881cab | 297 | else if (pi->mod_type < ARRAY_SIZE(mod_str)) |
b8ff05a9 DM |
298 | netdev_info(dev, "%s module inserted\n", mod_str[pi->mod_type]); |
299 | } | |
300 | ||
301 | /* | |
302 | * Configure the exact and hash address filters to handle a port's multicast | |
303 | * and secondary unicast MAC addresses. | |
304 | */ | |
305 | static int set_addr_filters(const struct net_device *dev, bool sleep) | |
306 | { | |
307 | u64 mhash = 0; | |
308 | u64 uhash = 0; | |
309 | bool free = true; | |
310 | u16 filt_idx[7]; | |
311 | const u8 *addr[7]; | |
312 | int ret, naddr = 0; | |
b8ff05a9 DM |
313 | const struct netdev_hw_addr *ha; |
314 | int uc_cnt = netdev_uc_count(dev); | |
4a35ecf8 | 315 | int mc_cnt = netdev_mc_count(dev); |
b8ff05a9 DM |
316 | const struct port_info *pi = netdev_priv(dev); |
317 | ||
318 | /* first do the secondary unicast addresses */ | |
319 | netdev_for_each_uc_addr(ha, dev) { | |
320 | addr[naddr++] = ha->addr; | |
321 | if (--uc_cnt == 0 || naddr >= ARRAY_SIZE(addr)) { | |
322 | ret = t4_alloc_mac_filt(pi->adapter, 0, pi->viid, free, | |
323 | naddr, addr, filt_idx, &uhash, sleep); | |
324 | if (ret < 0) | |
325 | return ret; | |
326 | ||
327 | free = false; | |
328 | naddr = 0; | |
329 | } | |
330 | } | |
331 | ||
332 | /* next set up the multicast addresses */ | |
4a35ecf8 DM |
333 | netdev_for_each_mc_addr(ha, dev) { |
334 | addr[naddr++] = ha->addr; | |
335 | if (--mc_cnt == 0 || naddr >= ARRAY_SIZE(addr)) { | |
b8ff05a9 DM |
336 | ret = t4_alloc_mac_filt(pi->adapter, 0, pi->viid, free, |
337 | naddr, addr, filt_idx, &mhash, sleep); | |
338 | if (ret < 0) | |
339 | return ret; | |
340 | ||
341 | free = false; | |
342 | naddr = 0; | |
343 | } | |
344 | } | |
345 | ||
346 | return t4_set_addr_hash(pi->adapter, 0, pi->viid, uhash != 0, | |
347 | uhash | mhash, sleep); | |
348 | } | |
349 | ||
350 | /* | |
351 | * Set Rx properties of a port, such as promiscruity, address filters, and MTU. | |
352 | * If @mtu is -1 it is left unchanged. | |
353 | */ | |
354 | static int set_rxmode(struct net_device *dev, int mtu, bool sleep_ok) | |
355 | { | |
356 | int ret; | |
357 | struct port_info *pi = netdev_priv(dev); | |
358 | ||
359 | ret = set_addr_filters(dev, sleep_ok); | |
360 | if (ret == 0) | |
361 | ret = t4_set_rxmode(pi->adapter, 0, pi->viid, mtu, | |
362 | (dev->flags & IFF_PROMISC) ? 1 : 0, | |
f8f5aafa | 363 | (dev->flags & IFF_ALLMULTI) ? 1 : 0, 1, -1, |
b8ff05a9 DM |
364 | sleep_ok); |
365 | return ret; | |
366 | } | |
367 | ||
368 | /** | |
369 | * link_start - enable a port | |
370 | * @dev: the port to enable | |
371 | * | |
372 | * Performs the MAC and PHY actions needed to enable a port. | |
373 | */ | |
374 | static int link_start(struct net_device *dev) | |
375 | { | |
376 | int ret; | |
377 | struct port_info *pi = netdev_priv(dev); | |
378 | ||
379 | /* | |
380 | * We do not set address filters and promiscuity here, the stack does | |
381 | * that step explicitly. | |
382 | */ | |
383 | ret = t4_set_rxmode(pi->adapter, 0, pi->viid, dev->mtu, -1, -1, -1, | |
f8f5aafa | 384 | pi->vlan_grp != NULL, true); |
b8ff05a9 DM |
385 | if (ret == 0) { |
386 | ret = t4_change_mac(pi->adapter, 0, pi->viid, | |
387 | pi->xact_addr_filt, dev->dev_addr, true, | |
b6bd29e7 | 388 | true); |
b8ff05a9 DM |
389 | if (ret >= 0) { |
390 | pi->xact_addr_filt = ret; | |
391 | ret = 0; | |
392 | } | |
393 | } | |
394 | if (ret == 0) | |
395 | ret = t4_link_start(pi->adapter, 0, pi->tx_chan, &pi->link_cfg); | |
396 | if (ret == 0) | |
397 | ret = t4_enable_vi(pi->adapter, 0, pi->viid, true, true); | |
398 | return ret; | |
399 | } | |
400 | ||
401 | /* | |
402 | * Response queue handler for the FW event queue. | |
403 | */ | |
404 | static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp, | |
405 | const struct pkt_gl *gl) | |
406 | { | |
407 | u8 opcode = ((const struct rss_header *)rsp)->opcode; | |
408 | ||
409 | rsp++; /* skip RSS header */ | |
410 | if (likely(opcode == CPL_SGE_EGR_UPDATE)) { | |
411 | const struct cpl_sge_egr_update *p = (void *)rsp; | |
412 | unsigned int qid = EGR_QID(ntohl(p->opcode_qid)); | |
413 | struct sge_txq *txq = q->adap->sge.egr_map[qid]; | |
414 | ||
415 | txq->restarts++; | |
416 | if ((u8 *)txq < (u8 *)q->adap->sge.ethrxq) { | |
417 | struct sge_eth_txq *eq; | |
418 | ||
419 | eq = container_of(txq, struct sge_eth_txq, q); | |
420 | netif_tx_wake_queue(eq->txq); | |
421 | } else { | |
422 | struct sge_ofld_txq *oq; | |
423 | ||
424 | oq = container_of(txq, struct sge_ofld_txq, q); | |
425 | tasklet_schedule(&oq->qresume_tsk); | |
426 | } | |
427 | } else if (opcode == CPL_FW6_MSG || opcode == CPL_FW4_MSG) { | |
428 | const struct cpl_fw6_msg *p = (void *)rsp; | |
429 | ||
430 | if (p->type == 0) | |
431 | t4_handle_fw_rpl(q->adap, p->data); | |
432 | } else if (opcode == CPL_L2T_WRITE_RPL) { | |
433 | const struct cpl_l2t_write_rpl *p = (void *)rsp; | |
434 | ||
435 | do_l2t_write_rpl(q->adap, p); | |
436 | } else | |
437 | dev_err(q->adap->pdev_dev, | |
438 | "unexpected CPL %#x on FW event queue\n", opcode); | |
439 | return 0; | |
440 | } | |
441 | ||
442 | /** | |
443 | * uldrx_handler - response queue handler for ULD queues | |
444 | * @q: the response queue that received the packet | |
445 | * @rsp: the response queue descriptor holding the offload message | |
446 | * @gl: the gather list of packet fragments | |
447 | * | |
448 | * Deliver an ingress offload packet to a ULD. All processing is done by | |
449 | * the ULD, we just maintain statistics. | |
450 | */ | |
451 | static int uldrx_handler(struct sge_rspq *q, const __be64 *rsp, | |
452 | const struct pkt_gl *gl) | |
453 | { | |
454 | struct sge_ofld_rxq *rxq = container_of(q, struct sge_ofld_rxq, rspq); | |
455 | ||
456 | if (ulds[q->uld].rx_handler(q->adap->uld_handle[q->uld], rsp, gl)) { | |
457 | rxq->stats.nomem++; | |
458 | return -1; | |
459 | } | |
460 | if (gl == NULL) | |
461 | rxq->stats.imm++; | |
462 | else if (gl == CXGB4_MSG_AN) | |
463 | rxq->stats.an++; | |
464 | else | |
465 | rxq->stats.pkts++; | |
466 | return 0; | |
467 | } | |
468 | ||
469 | static void disable_msi(struct adapter *adapter) | |
470 | { | |
471 | if (adapter->flags & USING_MSIX) { | |
472 | pci_disable_msix(adapter->pdev); | |
473 | adapter->flags &= ~USING_MSIX; | |
474 | } else if (adapter->flags & USING_MSI) { | |
475 | pci_disable_msi(adapter->pdev); | |
476 | adapter->flags &= ~USING_MSI; | |
477 | } | |
478 | } | |
479 | ||
480 | /* | |
481 | * Interrupt handler for non-data events used with MSI-X. | |
482 | */ | |
483 | static irqreturn_t t4_nondata_intr(int irq, void *cookie) | |
484 | { | |
485 | struct adapter *adap = cookie; | |
486 | ||
487 | u32 v = t4_read_reg(adap, MYPF_REG(PL_PF_INT_CAUSE)); | |
488 | if (v & PFSW) { | |
489 | adap->swintr = 1; | |
490 | t4_write_reg(adap, MYPF_REG(PL_PF_INT_CAUSE), v); | |
491 | } | |
492 | t4_slow_intr_handler(adap); | |
493 | return IRQ_HANDLED; | |
494 | } | |
495 | ||
496 | /* | |
497 | * Name the MSI-X interrupts. | |
498 | */ | |
499 | static void name_msix_vecs(struct adapter *adap) | |
500 | { | |
501 | int i, j, msi_idx = 2, n = sizeof(adap->msix_info[0].desc) - 1; | |
502 | ||
503 | /* non-data interrupts */ | |
504 | snprintf(adap->msix_info[0].desc, n, "%s", adap->name); | |
505 | adap->msix_info[0].desc[n] = 0; | |
506 | ||
507 | /* FW events */ | |
508 | snprintf(adap->msix_info[1].desc, n, "%s-FWeventq", adap->name); | |
509 | adap->msix_info[1].desc[n] = 0; | |
510 | ||
511 | /* Ethernet queues */ | |
512 | for_each_port(adap, j) { | |
513 | struct net_device *d = adap->port[j]; | |
514 | const struct port_info *pi = netdev_priv(d); | |
515 | ||
516 | for (i = 0; i < pi->nqsets; i++, msi_idx++) { | |
517 | snprintf(adap->msix_info[msi_idx].desc, n, "%s-Rx%d", | |
518 | d->name, i); | |
519 | adap->msix_info[msi_idx].desc[n] = 0; | |
520 | } | |
521 | } | |
522 | ||
523 | /* offload queues */ | |
524 | for_each_ofldrxq(&adap->sge, i) { | |
525 | snprintf(adap->msix_info[msi_idx].desc, n, "%s-ofld%d", | |
526 | adap->name, i); | |
527 | adap->msix_info[msi_idx++].desc[n] = 0; | |
528 | } | |
529 | for_each_rdmarxq(&adap->sge, i) { | |
530 | snprintf(adap->msix_info[msi_idx].desc, n, "%s-rdma%d", | |
531 | adap->name, i); | |
532 | adap->msix_info[msi_idx++].desc[n] = 0; | |
533 | } | |
534 | } | |
535 | ||
536 | static int request_msix_queue_irqs(struct adapter *adap) | |
537 | { | |
538 | struct sge *s = &adap->sge; | |
539 | int err, ethqidx, ofldqidx = 0, rdmaqidx = 0, msi = 2; | |
540 | ||
541 | err = request_irq(adap->msix_info[1].vec, t4_sge_intr_msix, 0, | |
542 | adap->msix_info[1].desc, &s->fw_evtq); | |
543 | if (err) | |
544 | return err; | |
545 | ||
546 | for_each_ethrxq(s, ethqidx) { | |
547 | err = request_irq(adap->msix_info[msi].vec, t4_sge_intr_msix, 0, | |
548 | adap->msix_info[msi].desc, | |
549 | &s->ethrxq[ethqidx].rspq); | |
550 | if (err) | |
551 | goto unwind; | |
552 | msi++; | |
553 | } | |
554 | for_each_ofldrxq(s, ofldqidx) { | |
555 | err = request_irq(adap->msix_info[msi].vec, t4_sge_intr_msix, 0, | |
556 | adap->msix_info[msi].desc, | |
557 | &s->ofldrxq[ofldqidx].rspq); | |
558 | if (err) | |
559 | goto unwind; | |
560 | msi++; | |
561 | } | |
562 | for_each_rdmarxq(s, rdmaqidx) { | |
563 | err = request_irq(adap->msix_info[msi].vec, t4_sge_intr_msix, 0, | |
564 | adap->msix_info[msi].desc, | |
565 | &s->rdmarxq[rdmaqidx].rspq); | |
566 | if (err) | |
567 | goto unwind; | |
568 | msi++; | |
569 | } | |
570 | return 0; | |
571 | ||
572 | unwind: | |
573 | while (--rdmaqidx >= 0) | |
574 | free_irq(adap->msix_info[--msi].vec, | |
575 | &s->rdmarxq[rdmaqidx].rspq); | |
576 | while (--ofldqidx >= 0) | |
577 | free_irq(adap->msix_info[--msi].vec, | |
578 | &s->ofldrxq[ofldqidx].rspq); | |
579 | while (--ethqidx >= 0) | |
580 | free_irq(adap->msix_info[--msi].vec, &s->ethrxq[ethqidx].rspq); | |
581 | free_irq(adap->msix_info[1].vec, &s->fw_evtq); | |
582 | return err; | |
583 | } | |
584 | ||
585 | static void free_msix_queue_irqs(struct adapter *adap) | |
586 | { | |
587 | int i, msi = 2; | |
588 | struct sge *s = &adap->sge; | |
589 | ||
590 | free_irq(adap->msix_info[1].vec, &s->fw_evtq); | |
591 | for_each_ethrxq(s, i) | |
592 | free_irq(adap->msix_info[msi++].vec, &s->ethrxq[i].rspq); | |
593 | for_each_ofldrxq(s, i) | |
594 | free_irq(adap->msix_info[msi++].vec, &s->ofldrxq[i].rspq); | |
595 | for_each_rdmarxq(s, i) | |
596 | free_irq(adap->msix_info[msi++].vec, &s->rdmarxq[i].rspq); | |
597 | } | |
598 | ||
671b0060 DM |
599 | /** |
600 | * write_rss - write the RSS table for a given port | |
601 | * @pi: the port | |
602 | * @queues: array of queue indices for RSS | |
603 | * | |
604 | * Sets up the portion of the HW RSS table for the port's VI to distribute | |
605 | * packets to the Rx queues in @queues. | |
606 | */ | |
607 | static int write_rss(const struct port_info *pi, const u16 *queues) | |
608 | { | |
609 | u16 *rss; | |
610 | int i, err; | |
611 | const struct sge_eth_rxq *q = &pi->adapter->sge.ethrxq[pi->first_qset]; | |
612 | ||
613 | rss = kmalloc(pi->rss_size * sizeof(u16), GFP_KERNEL); | |
614 | if (!rss) | |
615 | return -ENOMEM; | |
616 | ||
617 | /* map the queue indices to queue ids */ | |
618 | for (i = 0; i < pi->rss_size; i++, queues++) | |
619 | rss[i] = q[*queues].rspq.abs_id; | |
620 | ||
621 | err = t4_config_rss_range(pi->adapter, 0, pi->viid, 0, pi->rss_size, | |
622 | rss, pi->rss_size); | |
623 | kfree(rss); | |
624 | return err; | |
625 | } | |
626 | ||
b8ff05a9 DM |
627 | /** |
628 | * setup_rss - configure RSS | |
629 | * @adap: the adapter | |
630 | * | |
671b0060 | 631 | * Sets up RSS for each port. |
b8ff05a9 DM |
632 | */ |
633 | static int setup_rss(struct adapter *adap) | |
634 | { | |
671b0060 | 635 | int i, err; |
b8ff05a9 DM |
636 | |
637 | for_each_port(adap, i) { | |
638 | const struct port_info *pi = adap2pinfo(adap, i); | |
b8ff05a9 | 639 | |
671b0060 | 640 | err = write_rss(pi, pi->rss); |
b8ff05a9 DM |
641 | if (err) |
642 | return err; | |
643 | } | |
644 | return 0; | |
645 | } | |
646 | ||
647 | /* | |
648 | * Wait until all NAPI handlers are descheduled. | |
649 | */ | |
650 | static void quiesce_rx(struct adapter *adap) | |
651 | { | |
652 | int i; | |
653 | ||
654 | for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) { | |
655 | struct sge_rspq *q = adap->sge.ingr_map[i]; | |
656 | ||
657 | if (q && q->handler) | |
658 | napi_disable(&q->napi); | |
659 | } | |
660 | } | |
661 | ||
662 | /* | |
663 | * Enable NAPI scheduling and interrupt generation for all Rx queues. | |
664 | */ | |
665 | static void enable_rx(struct adapter *adap) | |
666 | { | |
667 | int i; | |
668 | ||
669 | for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) { | |
670 | struct sge_rspq *q = adap->sge.ingr_map[i]; | |
671 | ||
672 | if (!q) | |
673 | continue; | |
674 | if (q->handler) | |
675 | napi_enable(&q->napi); | |
676 | /* 0-increment GTS to start the timer and enable interrupts */ | |
677 | t4_write_reg(adap, MYPF_REG(SGE_PF_GTS), | |
678 | SEINTARM(q->intr_params) | | |
679 | INGRESSQID(q->cntxt_id)); | |
680 | } | |
681 | } | |
682 | ||
683 | /** | |
684 | * setup_sge_queues - configure SGE Tx/Rx/response queues | |
685 | * @adap: the adapter | |
686 | * | |
687 | * Determines how many sets of SGE queues to use and initializes them. | |
688 | * We support multiple queue sets per port if we have MSI-X, otherwise | |
689 | * just one queue set per port. | |
690 | */ | |
691 | static int setup_sge_queues(struct adapter *adap) | |
692 | { | |
693 | int err, msi_idx, i, j; | |
694 | struct sge *s = &adap->sge; | |
695 | ||
696 | bitmap_zero(s->starving_fl, MAX_EGRQ); | |
697 | bitmap_zero(s->txq_maperr, MAX_EGRQ); | |
698 | ||
699 | if (adap->flags & USING_MSIX) | |
700 | msi_idx = 1; /* vector 0 is for non-queue interrupts */ | |
701 | else { | |
702 | err = t4_sge_alloc_rxq(adap, &s->intrq, false, adap->port[0], 0, | |
703 | NULL, NULL); | |
704 | if (err) | |
705 | return err; | |
706 | msi_idx = -((int)s->intrq.abs_id + 1); | |
707 | } | |
708 | ||
709 | err = t4_sge_alloc_rxq(adap, &s->fw_evtq, true, adap->port[0], | |
710 | msi_idx, NULL, fwevtq_handler); | |
711 | if (err) { | |
712 | freeout: t4_free_sge_resources(adap); | |
713 | return err; | |
714 | } | |
715 | ||
716 | for_each_port(adap, i) { | |
717 | struct net_device *dev = adap->port[i]; | |
718 | struct port_info *pi = netdev_priv(dev); | |
719 | struct sge_eth_rxq *q = &s->ethrxq[pi->first_qset]; | |
720 | struct sge_eth_txq *t = &s->ethtxq[pi->first_qset]; | |
721 | ||
722 | for (j = 0; j < pi->nqsets; j++, q++) { | |
723 | if (msi_idx > 0) | |
724 | msi_idx++; | |
725 | err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev, | |
726 | msi_idx, &q->fl, | |
727 | t4_ethrx_handler); | |
728 | if (err) | |
729 | goto freeout; | |
730 | q->rspq.idx = j; | |
731 | memset(&q->stats, 0, sizeof(q->stats)); | |
732 | } | |
733 | for (j = 0; j < pi->nqsets; j++, t++) { | |
734 | err = t4_sge_alloc_eth_txq(adap, t, dev, | |
735 | netdev_get_tx_queue(dev, j), | |
736 | s->fw_evtq.cntxt_id); | |
737 | if (err) | |
738 | goto freeout; | |
739 | } | |
740 | } | |
741 | ||
742 | j = s->ofldqsets / adap->params.nports; /* ofld queues per channel */ | |
743 | for_each_ofldrxq(s, i) { | |
744 | struct sge_ofld_rxq *q = &s->ofldrxq[i]; | |
745 | struct net_device *dev = adap->port[i / j]; | |
746 | ||
747 | if (msi_idx > 0) | |
748 | msi_idx++; | |
749 | err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev, msi_idx, | |
750 | &q->fl, uldrx_handler); | |
751 | if (err) | |
752 | goto freeout; | |
753 | memset(&q->stats, 0, sizeof(q->stats)); | |
754 | s->ofld_rxq[i] = q->rspq.abs_id; | |
755 | err = t4_sge_alloc_ofld_txq(adap, &s->ofldtxq[i], dev, | |
756 | s->fw_evtq.cntxt_id); | |
757 | if (err) | |
758 | goto freeout; | |
759 | } | |
760 | ||
761 | for_each_rdmarxq(s, i) { | |
762 | struct sge_ofld_rxq *q = &s->rdmarxq[i]; | |
763 | ||
764 | if (msi_idx > 0) | |
765 | msi_idx++; | |
766 | err = t4_sge_alloc_rxq(adap, &q->rspq, false, adap->port[i], | |
767 | msi_idx, &q->fl, uldrx_handler); | |
768 | if (err) | |
769 | goto freeout; | |
770 | memset(&q->stats, 0, sizeof(q->stats)); | |
771 | s->rdma_rxq[i] = q->rspq.abs_id; | |
772 | } | |
773 | ||
774 | for_each_port(adap, i) { | |
775 | /* | |
776 | * Note that ->rdmarxq[i].rspq.cntxt_id below is 0 if we don't | |
777 | * have RDMA queues, and that's the right value. | |
778 | */ | |
779 | err = t4_sge_alloc_ctrl_txq(adap, &s->ctrlq[i], adap->port[i], | |
780 | s->fw_evtq.cntxt_id, | |
781 | s->rdmarxq[i].rspq.cntxt_id); | |
782 | if (err) | |
783 | goto freeout; | |
784 | } | |
785 | ||
786 | t4_write_reg(adap, MPS_TRC_RSS_CONTROL, | |
787 | RSSCONTROL(netdev2pinfo(adap->port[0])->tx_chan) | | |
788 | QUEUENUMBER(s->ethrxq[0].rspq.abs_id)); | |
789 | return 0; | |
790 | } | |
791 | ||
792 | /* | |
793 | * Returns 0 if new FW was successfully loaded, a positive errno if a load was | |
794 | * started but failed, and a negative errno if flash load couldn't start. | |
795 | */ | |
796 | static int upgrade_fw(struct adapter *adap) | |
797 | { | |
798 | int ret; | |
799 | u32 vers; | |
800 | const struct fw_hdr *hdr; | |
801 | const struct firmware *fw; | |
802 | struct device *dev = adap->pdev_dev; | |
803 | ||
804 | ret = request_firmware(&fw, FW_FNAME, dev); | |
805 | if (ret < 0) { | |
806 | dev_err(dev, "unable to load firmware image " FW_FNAME | |
807 | ", error %d\n", ret); | |
808 | return ret; | |
809 | } | |
810 | ||
811 | hdr = (const struct fw_hdr *)fw->data; | |
812 | vers = ntohl(hdr->fw_ver); | |
813 | if (FW_HDR_FW_VER_MAJOR_GET(vers) != FW_VERSION_MAJOR) { | |
814 | ret = -EINVAL; /* wrong major version, won't do */ | |
815 | goto out; | |
816 | } | |
817 | ||
818 | /* | |
819 | * If the flash FW is unusable or we found something newer, load it. | |
820 | */ | |
821 | if (FW_HDR_FW_VER_MAJOR_GET(adap->params.fw_vers) != FW_VERSION_MAJOR || | |
822 | vers > adap->params.fw_vers) { | |
823 | ret = -t4_load_fw(adap, fw->data, fw->size); | |
824 | if (!ret) | |
825 | dev_info(dev, "firmware upgraded to version %pI4 from " | |
826 | FW_FNAME "\n", &hdr->fw_ver); | |
827 | } | |
828 | out: release_firmware(fw); | |
829 | return ret; | |
830 | } | |
831 | ||
832 | /* | |
833 | * Allocate a chunk of memory using kmalloc or, if that fails, vmalloc. | |
834 | * The allocated memory is cleared. | |
835 | */ | |
836 | void *t4_alloc_mem(size_t size) | |
837 | { | |
838 | void *p = kmalloc(size, GFP_KERNEL); | |
839 | ||
840 | if (!p) | |
841 | p = vmalloc(size); | |
842 | if (p) | |
843 | memset(p, 0, size); | |
844 | return p; | |
845 | } | |
846 | ||
847 | /* | |
848 | * Free memory allocated through alloc_mem(). | |
849 | */ | |
850 | void t4_free_mem(void *addr) | |
851 | { | |
852 | if (is_vmalloc_addr(addr)) | |
853 | vfree(addr); | |
854 | else | |
855 | kfree(addr); | |
856 | } | |
857 | ||
858 | static inline int is_offload(const struct adapter *adap) | |
859 | { | |
860 | return adap->params.offload; | |
861 | } | |
862 | ||
863 | /* | |
864 | * Implementation of ethtool operations. | |
865 | */ | |
866 | ||
867 | static u32 get_msglevel(struct net_device *dev) | |
868 | { | |
869 | return netdev2adap(dev)->msg_enable; | |
870 | } | |
871 | ||
872 | static void set_msglevel(struct net_device *dev, u32 val) | |
873 | { | |
874 | netdev2adap(dev)->msg_enable = val; | |
875 | } | |
876 | ||
877 | static char stats_strings[][ETH_GSTRING_LEN] = { | |
878 | "TxOctetsOK ", | |
879 | "TxFramesOK ", | |
880 | "TxBroadcastFrames ", | |
881 | "TxMulticastFrames ", | |
882 | "TxUnicastFrames ", | |
883 | "TxErrorFrames ", | |
884 | ||
885 | "TxFrames64 ", | |
886 | "TxFrames65To127 ", | |
887 | "TxFrames128To255 ", | |
888 | "TxFrames256To511 ", | |
889 | "TxFrames512To1023 ", | |
890 | "TxFrames1024To1518 ", | |
891 | "TxFrames1519ToMax ", | |
892 | ||
893 | "TxFramesDropped ", | |
894 | "TxPauseFrames ", | |
895 | "TxPPP0Frames ", | |
896 | "TxPPP1Frames ", | |
897 | "TxPPP2Frames ", | |
898 | "TxPPP3Frames ", | |
899 | "TxPPP4Frames ", | |
900 | "TxPPP5Frames ", | |
901 | "TxPPP6Frames ", | |
902 | "TxPPP7Frames ", | |
903 | ||
904 | "RxOctetsOK ", | |
905 | "RxFramesOK ", | |
906 | "RxBroadcastFrames ", | |
907 | "RxMulticastFrames ", | |
908 | "RxUnicastFrames ", | |
909 | ||
910 | "RxFramesTooLong ", | |
911 | "RxJabberErrors ", | |
912 | "RxFCSErrors ", | |
913 | "RxLengthErrors ", | |
914 | "RxSymbolErrors ", | |
915 | "RxRuntFrames ", | |
916 | ||
917 | "RxFrames64 ", | |
918 | "RxFrames65To127 ", | |
919 | "RxFrames128To255 ", | |
920 | "RxFrames256To511 ", | |
921 | "RxFrames512To1023 ", | |
922 | "RxFrames1024To1518 ", | |
923 | "RxFrames1519ToMax ", | |
924 | ||
925 | "RxPauseFrames ", | |
926 | "RxPPP0Frames ", | |
927 | "RxPPP1Frames ", | |
928 | "RxPPP2Frames ", | |
929 | "RxPPP3Frames ", | |
930 | "RxPPP4Frames ", | |
931 | "RxPPP5Frames ", | |
932 | "RxPPP6Frames ", | |
933 | "RxPPP7Frames ", | |
934 | ||
935 | "RxBG0FramesDropped ", | |
936 | "RxBG1FramesDropped ", | |
937 | "RxBG2FramesDropped ", | |
938 | "RxBG3FramesDropped ", | |
939 | "RxBG0FramesTrunc ", | |
940 | "RxBG1FramesTrunc ", | |
941 | "RxBG2FramesTrunc ", | |
942 | "RxBG3FramesTrunc ", | |
943 | ||
944 | "TSO ", | |
945 | "TxCsumOffload ", | |
946 | "RxCsumGood ", | |
947 | "VLANextractions ", | |
948 | "VLANinsertions ", | |
4a6346d4 DM |
949 | "GROpackets ", |
950 | "GROmerged ", | |
b8ff05a9 DM |
951 | }; |
952 | ||
953 | static int get_sset_count(struct net_device *dev, int sset) | |
954 | { | |
955 | switch (sset) { | |
956 | case ETH_SS_STATS: | |
957 | return ARRAY_SIZE(stats_strings); | |
958 | default: | |
959 | return -EOPNOTSUPP; | |
960 | } | |
961 | } | |
962 | ||
963 | #define T4_REGMAP_SIZE (160 * 1024) | |
964 | ||
965 | static int get_regs_len(struct net_device *dev) | |
966 | { | |
967 | return T4_REGMAP_SIZE; | |
968 | } | |
969 | ||
970 | static int get_eeprom_len(struct net_device *dev) | |
971 | { | |
972 | return EEPROMSIZE; | |
973 | } | |
974 | ||
975 | static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
976 | { | |
977 | struct adapter *adapter = netdev2adap(dev); | |
978 | ||
979 | strcpy(info->driver, KBUILD_MODNAME); | |
980 | strcpy(info->version, DRV_VERSION); | |
981 | strcpy(info->bus_info, pci_name(adapter->pdev)); | |
982 | ||
983 | if (!adapter->params.fw_vers) | |
984 | strcpy(info->fw_version, "N/A"); | |
985 | else | |
986 | snprintf(info->fw_version, sizeof(info->fw_version), | |
987 | "%u.%u.%u.%u, TP %u.%u.%u.%u", | |
988 | FW_HDR_FW_VER_MAJOR_GET(adapter->params.fw_vers), | |
989 | FW_HDR_FW_VER_MINOR_GET(adapter->params.fw_vers), | |
990 | FW_HDR_FW_VER_MICRO_GET(adapter->params.fw_vers), | |
991 | FW_HDR_FW_VER_BUILD_GET(adapter->params.fw_vers), | |
992 | FW_HDR_FW_VER_MAJOR_GET(adapter->params.tp_vers), | |
993 | FW_HDR_FW_VER_MINOR_GET(adapter->params.tp_vers), | |
994 | FW_HDR_FW_VER_MICRO_GET(adapter->params.tp_vers), | |
995 | FW_HDR_FW_VER_BUILD_GET(adapter->params.tp_vers)); | |
996 | } | |
997 | ||
998 | static void get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
999 | { | |
1000 | if (stringset == ETH_SS_STATS) | |
1001 | memcpy(data, stats_strings, sizeof(stats_strings)); | |
1002 | } | |
1003 | ||
1004 | /* | |
1005 | * port stats maintained per queue of the port. They should be in the same | |
1006 | * order as in stats_strings above. | |
1007 | */ | |
1008 | struct queue_port_stats { | |
1009 | u64 tso; | |
1010 | u64 tx_csum; | |
1011 | u64 rx_csum; | |
1012 | u64 vlan_ex; | |
1013 | u64 vlan_ins; | |
4a6346d4 DM |
1014 | u64 gro_pkts; |
1015 | u64 gro_merged; | |
b8ff05a9 DM |
1016 | }; |
1017 | ||
1018 | static void collect_sge_port_stats(const struct adapter *adap, | |
1019 | const struct port_info *p, struct queue_port_stats *s) | |
1020 | { | |
1021 | int i; | |
1022 | const struct sge_eth_txq *tx = &adap->sge.ethtxq[p->first_qset]; | |
1023 | const struct sge_eth_rxq *rx = &adap->sge.ethrxq[p->first_qset]; | |
1024 | ||
1025 | memset(s, 0, sizeof(*s)); | |
1026 | for (i = 0; i < p->nqsets; i++, rx++, tx++) { | |
1027 | s->tso += tx->tso; | |
1028 | s->tx_csum += tx->tx_cso; | |
1029 | s->rx_csum += rx->stats.rx_cso; | |
1030 | s->vlan_ex += rx->stats.vlan_ex; | |
1031 | s->vlan_ins += tx->vlan_ins; | |
4a6346d4 DM |
1032 | s->gro_pkts += rx->stats.lro_pkts; |
1033 | s->gro_merged += rx->stats.lro_merged; | |
b8ff05a9 DM |
1034 | } |
1035 | } | |
1036 | ||
1037 | static void get_stats(struct net_device *dev, struct ethtool_stats *stats, | |
1038 | u64 *data) | |
1039 | { | |
1040 | struct port_info *pi = netdev_priv(dev); | |
1041 | struct adapter *adapter = pi->adapter; | |
1042 | ||
1043 | t4_get_port_stats(adapter, pi->tx_chan, (struct port_stats *)data); | |
1044 | ||
1045 | data += sizeof(struct port_stats) / sizeof(u64); | |
1046 | collect_sge_port_stats(adapter, pi, (struct queue_port_stats *)data); | |
1047 | } | |
1048 | ||
1049 | /* | |
1050 | * Return a version number to identify the type of adapter. The scheme is: | |
1051 | * - bits 0..9: chip version | |
1052 | * - bits 10..15: chip revision | |
835bb606 | 1053 | * - bits 16..23: register dump version |
b8ff05a9 DM |
1054 | */ |
1055 | static inline unsigned int mk_adap_vers(const struct adapter *ap) | |
1056 | { | |
835bb606 | 1057 | return 4 | (ap->params.rev << 10) | (1 << 16); |
b8ff05a9 DM |
1058 | } |
1059 | ||
1060 | static void reg_block_dump(struct adapter *ap, void *buf, unsigned int start, | |
1061 | unsigned int end) | |
1062 | { | |
1063 | u32 *p = buf + start; | |
1064 | ||
1065 | for ( ; start <= end; start += sizeof(u32)) | |
1066 | *p++ = t4_read_reg(ap, start); | |
1067 | } | |
1068 | ||
1069 | static void get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1070 | void *buf) | |
1071 | { | |
1072 | static const unsigned int reg_ranges[] = { | |
1073 | 0x1008, 0x1108, | |
1074 | 0x1180, 0x11b4, | |
1075 | 0x11fc, 0x123c, | |
1076 | 0x1300, 0x173c, | |
1077 | 0x1800, 0x18fc, | |
1078 | 0x3000, 0x30d8, | |
1079 | 0x30e0, 0x5924, | |
1080 | 0x5960, 0x59d4, | |
1081 | 0x5a00, 0x5af8, | |
1082 | 0x6000, 0x6098, | |
1083 | 0x6100, 0x6150, | |
1084 | 0x6200, 0x6208, | |
1085 | 0x6240, 0x6248, | |
1086 | 0x6280, 0x6338, | |
1087 | 0x6370, 0x638c, | |
1088 | 0x6400, 0x643c, | |
1089 | 0x6500, 0x6524, | |
1090 | 0x6a00, 0x6a38, | |
1091 | 0x6a60, 0x6a78, | |
1092 | 0x6b00, 0x6b84, | |
1093 | 0x6bf0, 0x6c84, | |
1094 | 0x6cf0, 0x6d84, | |
1095 | 0x6df0, 0x6e84, | |
1096 | 0x6ef0, 0x6f84, | |
1097 | 0x6ff0, 0x7084, | |
1098 | 0x70f0, 0x7184, | |
1099 | 0x71f0, 0x7284, | |
1100 | 0x72f0, 0x7384, | |
1101 | 0x73f0, 0x7450, | |
1102 | 0x7500, 0x7530, | |
1103 | 0x7600, 0x761c, | |
1104 | 0x7680, 0x76cc, | |
1105 | 0x7700, 0x7798, | |
1106 | 0x77c0, 0x77fc, | |
1107 | 0x7900, 0x79fc, | |
1108 | 0x7b00, 0x7c38, | |
1109 | 0x7d00, 0x7efc, | |
1110 | 0x8dc0, 0x8e1c, | |
1111 | 0x8e30, 0x8e78, | |
1112 | 0x8ea0, 0x8f6c, | |
1113 | 0x8fc0, 0x9074, | |
1114 | 0x90fc, 0x90fc, | |
1115 | 0x9400, 0x9458, | |
1116 | 0x9600, 0x96bc, | |
1117 | 0x9800, 0x9808, | |
1118 | 0x9820, 0x983c, | |
1119 | 0x9850, 0x9864, | |
1120 | 0x9c00, 0x9c6c, | |
1121 | 0x9c80, 0x9cec, | |
1122 | 0x9d00, 0x9d6c, | |
1123 | 0x9d80, 0x9dec, | |
1124 | 0x9e00, 0x9e6c, | |
1125 | 0x9e80, 0x9eec, | |
1126 | 0x9f00, 0x9f6c, | |
1127 | 0x9f80, 0x9fec, | |
1128 | 0xd004, 0xd03c, | |
1129 | 0xdfc0, 0xdfe0, | |
1130 | 0xe000, 0xea7c, | |
1131 | 0xf000, 0x11190, | |
835bb606 DM |
1132 | 0x19040, 0x1906c, |
1133 | 0x19078, 0x19080, | |
1134 | 0x1908c, 0x19124, | |
b8ff05a9 DM |
1135 | 0x19150, 0x191b0, |
1136 | 0x191d0, 0x191e8, | |
1137 | 0x19238, 0x1924c, | |
1138 | 0x193f8, 0x19474, | |
1139 | 0x19490, 0x194f8, | |
1140 | 0x19800, 0x19f30, | |
1141 | 0x1a000, 0x1a06c, | |
1142 | 0x1a0b0, 0x1a120, | |
1143 | 0x1a128, 0x1a138, | |
1144 | 0x1a190, 0x1a1c4, | |
1145 | 0x1a1fc, 0x1a1fc, | |
1146 | 0x1e040, 0x1e04c, | |
835bb606 | 1147 | 0x1e284, 0x1e28c, |
b8ff05a9 DM |
1148 | 0x1e2c0, 0x1e2c0, |
1149 | 0x1e2e0, 0x1e2e0, | |
1150 | 0x1e300, 0x1e384, | |
1151 | 0x1e3c0, 0x1e3c8, | |
1152 | 0x1e440, 0x1e44c, | |
835bb606 | 1153 | 0x1e684, 0x1e68c, |
b8ff05a9 DM |
1154 | 0x1e6c0, 0x1e6c0, |
1155 | 0x1e6e0, 0x1e6e0, | |
1156 | 0x1e700, 0x1e784, | |
1157 | 0x1e7c0, 0x1e7c8, | |
1158 | 0x1e840, 0x1e84c, | |
835bb606 | 1159 | 0x1ea84, 0x1ea8c, |
b8ff05a9 DM |
1160 | 0x1eac0, 0x1eac0, |
1161 | 0x1eae0, 0x1eae0, | |
1162 | 0x1eb00, 0x1eb84, | |
1163 | 0x1ebc0, 0x1ebc8, | |
1164 | 0x1ec40, 0x1ec4c, | |
835bb606 | 1165 | 0x1ee84, 0x1ee8c, |
b8ff05a9 DM |
1166 | 0x1eec0, 0x1eec0, |
1167 | 0x1eee0, 0x1eee0, | |
1168 | 0x1ef00, 0x1ef84, | |
1169 | 0x1efc0, 0x1efc8, | |
1170 | 0x1f040, 0x1f04c, | |
835bb606 | 1171 | 0x1f284, 0x1f28c, |
b8ff05a9 DM |
1172 | 0x1f2c0, 0x1f2c0, |
1173 | 0x1f2e0, 0x1f2e0, | |
1174 | 0x1f300, 0x1f384, | |
1175 | 0x1f3c0, 0x1f3c8, | |
1176 | 0x1f440, 0x1f44c, | |
835bb606 | 1177 | 0x1f684, 0x1f68c, |
b8ff05a9 DM |
1178 | 0x1f6c0, 0x1f6c0, |
1179 | 0x1f6e0, 0x1f6e0, | |
1180 | 0x1f700, 0x1f784, | |
1181 | 0x1f7c0, 0x1f7c8, | |
1182 | 0x1f840, 0x1f84c, | |
835bb606 | 1183 | 0x1fa84, 0x1fa8c, |
b8ff05a9 DM |
1184 | 0x1fac0, 0x1fac0, |
1185 | 0x1fae0, 0x1fae0, | |
1186 | 0x1fb00, 0x1fb84, | |
1187 | 0x1fbc0, 0x1fbc8, | |
1188 | 0x1fc40, 0x1fc4c, | |
835bb606 | 1189 | 0x1fe84, 0x1fe8c, |
b8ff05a9 DM |
1190 | 0x1fec0, 0x1fec0, |
1191 | 0x1fee0, 0x1fee0, | |
1192 | 0x1ff00, 0x1ff84, | |
1193 | 0x1ffc0, 0x1ffc8, | |
1194 | 0x20000, 0x2002c, | |
1195 | 0x20100, 0x2013c, | |
1196 | 0x20190, 0x201c8, | |
1197 | 0x20200, 0x20318, | |
1198 | 0x20400, 0x20528, | |
1199 | 0x20540, 0x20614, | |
1200 | 0x21000, 0x21040, | |
1201 | 0x2104c, 0x21060, | |
1202 | 0x210c0, 0x210ec, | |
1203 | 0x21200, 0x21268, | |
1204 | 0x21270, 0x21284, | |
1205 | 0x212fc, 0x21388, | |
1206 | 0x21400, 0x21404, | |
1207 | 0x21500, 0x21518, | |
1208 | 0x2152c, 0x2153c, | |
1209 | 0x21550, 0x21554, | |
1210 | 0x21600, 0x21600, | |
1211 | 0x21608, 0x21628, | |
1212 | 0x21630, 0x2163c, | |
1213 | 0x21700, 0x2171c, | |
1214 | 0x21780, 0x2178c, | |
1215 | 0x21800, 0x21c38, | |
1216 | 0x21c80, 0x21d7c, | |
1217 | 0x21e00, 0x21e04, | |
1218 | 0x22000, 0x2202c, | |
1219 | 0x22100, 0x2213c, | |
1220 | 0x22190, 0x221c8, | |
1221 | 0x22200, 0x22318, | |
1222 | 0x22400, 0x22528, | |
1223 | 0x22540, 0x22614, | |
1224 | 0x23000, 0x23040, | |
1225 | 0x2304c, 0x23060, | |
1226 | 0x230c0, 0x230ec, | |
1227 | 0x23200, 0x23268, | |
1228 | 0x23270, 0x23284, | |
1229 | 0x232fc, 0x23388, | |
1230 | 0x23400, 0x23404, | |
1231 | 0x23500, 0x23518, | |
1232 | 0x2352c, 0x2353c, | |
1233 | 0x23550, 0x23554, | |
1234 | 0x23600, 0x23600, | |
1235 | 0x23608, 0x23628, | |
1236 | 0x23630, 0x2363c, | |
1237 | 0x23700, 0x2371c, | |
1238 | 0x23780, 0x2378c, | |
1239 | 0x23800, 0x23c38, | |
1240 | 0x23c80, 0x23d7c, | |
1241 | 0x23e00, 0x23e04, | |
1242 | 0x24000, 0x2402c, | |
1243 | 0x24100, 0x2413c, | |
1244 | 0x24190, 0x241c8, | |
1245 | 0x24200, 0x24318, | |
1246 | 0x24400, 0x24528, | |
1247 | 0x24540, 0x24614, | |
1248 | 0x25000, 0x25040, | |
1249 | 0x2504c, 0x25060, | |
1250 | 0x250c0, 0x250ec, | |
1251 | 0x25200, 0x25268, | |
1252 | 0x25270, 0x25284, | |
1253 | 0x252fc, 0x25388, | |
1254 | 0x25400, 0x25404, | |
1255 | 0x25500, 0x25518, | |
1256 | 0x2552c, 0x2553c, | |
1257 | 0x25550, 0x25554, | |
1258 | 0x25600, 0x25600, | |
1259 | 0x25608, 0x25628, | |
1260 | 0x25630, 0x2563c, | |
1261 | 0x25700, 0x2571c, | |
1262 | 0x25780, 0x2578c, | |
1263 | 0x25800, 0x25c38, | |
1264 | 0x25c80, 0x25d7c, | |
1265 | 0x25e00, 0x25e04, | |
1266 | 0x26000, 0x2602c, | |
1267 | 0x26100, 0x2613c, | |
1268 | 0x26190, 0x261c8, | |
1269 | 0x26200, 0x26318, | |
1270 | 0x26400, 0x26528, | |
1271 | 0x26540, 0x26614, | |
1272 | 0x27000, 0x27040, | |
1273 | 0x2704c, 0x27060, | |
1274 | 0x270c0, 0x270ec, | |
1275 | 0x27200, 0x27268, | |
1276 | 0x27270, 0x27284, | |
1277 | 0x272fc, 0x27388, | |
1278 | 0x27400, 0x27404, | |
1279 | 0x27500, 0x27518, | |
1280 | 0x2752c, 0x2753c, | |
1281 | 0x27550, 0x27554, | |
1282 | 0x27600, 0x27600, | |
1283 | 0x27608, 0x27628, | |
1284 | 0x27630, 0x2763c, | |
1285 | 0x27700, 0x2771c, | |
1286 | 0x27780, 0x2778c, | |
1287 | 0x27800, 0x27c38, | |
1288 | 0x27c80, 0x27d7c, | |
1289 | 0x27e00, 0x27e04 | |
1290 | }; | |
1291 | ||
1292 | int i; | |
1293 | struct adapter *ap = netdev2adap(dev); | |
1294 | ||
1295 | regs->version = mk_adap_vers(ap); | |
1296 | ||
1297 | memset(buf, 0, T4_REGMAP_SIZE); | |
1298 | for (i = 0; i < ARRAY_SIZE(reg_ranges); i += 2) | |
1299 | reg_block_dump(ap, buf, reg_ranges[i], reg_ranges[i + 1]); | |
1300 | } | |
1301 | ||
1302 | static int restart_autoneg(struct net_device *dev) | |
1303 | { | |
1304 | struct port_info *p = netdev_priv(dev); | |
1305 | ||
1306 | if (!netif_running(dev)) | |
1307 | return -EAGAIN; | |
1308 | if (p->link_cfg.autoneg != AUTONEG_ENABLE) | |
1309 | return -EINVAL; | |
1310 | t4_restart_aneg(p->adapter, 0, p->tx_chan); | |
1311 | return 0; | |
1312 | } | |
1313 | ||
1314 | static int identify_port(struct net_device *dev, u32 data) | |
1315 | { | |
1316 | if (data == 0) | |
1317 | data = 2; /* default to 2 seconds */ | |
1318 | ||
1319 | return t4_identify_port(netdev2adap(dev), 0, netdev2pinfo(dev)->viid, | |
1320 | data * 5); | |
1321 | } | |
1322 | ||
1323 | static unsigned int from_fw_linkcaps(unsigned int type, unsigned int caps) | |
1324 | { | |
1325 | unsigned int v = 0; | |
1326 | ||
a0881cab DM |
1327 | if (type == FW_PORT_TYPE_BT_SGMII || type == FW_PORT_TYPE_BT_XFI || |
1328 | type == FW_PORT_TYPE_BT_XAUI) { | |
b8ff05a9 DM |
1329 | v |= SUPPORTED_TP; |
1330 | if (caps & FW_PORT_CAP_SPEED_100M) | |
1331 | v |= SUPPORTED_100baseT_Full; | |
1332 | if (caps & FW_PORT_CAP_SPEED_1G) | |
1333 | v |= SUPPORTED_1000baseT_Full; | |
1334 | if (caps & FW_PORT_CAP_SPEED_10G) | |
1335 | v |= SUPPORTED_10000baseT_Full; | |
1336 | } else if (type == FW_PORT_TYPE_KX4 || type == FW_PORT_TYPE_KX) { | |
1337 | v |= SUPPORTED_Backplane; | |
1338 | if (caps & FW_PORT_CAP_SPEED_1G) | |
1339 | v |= SUPPORTED_1000baseKX_Full; | |
1340 | if (caps & FW_PORT_CAP_SPEED_10G) | |
1341 | v |= SUPPORTED_10000baseKX4_Full; | |
1342 | } else if (type == FW_PORT_TYPE_KR) | |
1343 | v |= SUPPORTED_Backplane | SUPPORTED_10000baseKR_Full; | |
a0881cab DM |
1344 | else if (type == FW_PORT_TYPE_BP_AP) |
1345 | v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC; | |
1346 | else if (type == FW_PORT_TYPE_FIBER_XFI || | |
1347 | type == FW_PORT_TYPE_FIBER_XAUI || type == FW_PORT_TYPE_SFP) | |
b8ff05a9 DM |
1348 | v |= SUPPORTED_FIBRE; |
1349 | ||
1350 | if (caps & FW_PORT_CAP_ANEG) | |
1351 | v |= SUPPORTED_Autoneg; | |
1352 | return v; | |
1353 | } | |
1354 | ||
1355 | static unsigned int to_fw_linkcaps(unsigned int caps) | |
1356 | { | |
1357 | unsigned int v = 0; | |
1358 | ||
1359 | if (caps & ADVERTISED_100baseT_Full) | |
1360 | v |= FW_PORT_CAP_SPEED_100M; | |
1361 | if (caps & ADVERTISED_1000baseT_Full) | |
1362 | v |= FW_PORT_CAP_SPEED_1G; | |
1363 | if (caps & ADVERTISED_10000baseT_Full) | |
1364 | v |= FW_PORT_CAP_SPEED_10G; | |
1365 | return v; | |
1366 | } | |
1367 | ||
1368 | static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1369 | { | |
1370 | const struct port_info *p = netdev_priv(dev); | |
1371 | ||
1372 | if (p->port_type == FW_PORT_TYPE_BT_SGMII || | |
a0881cab | 1373 | p->port_type == FW_PORT_TYPE_BT_XFI || |
b8ff05a9 DM |
1374 | p->port_type == FW_PORT_TYPE_BT_XAUI) |
1375 | cmd->port = PORT_TP; | |
a0881cab DM |
1376 | else if (p->port_type == FW_PORT_TYPE_FIBER_XFI || |
1377 | p->port_type == FW_PORT_TYPE_FIBER_XAUI) | |
b8ff05a9 | 1378 | cmd->port = PORT_FIBRE; |
a0881cab DM |
1379 | else if (p->port_type == FW_PORT_TYPE_SFP) { |
1380 | if (p->mod_type == FW_PORT_MOD_TYPE_TWINAX_PASSIVE || | |
1381 | p->mod_type == FW_PORT_MOD_TYPE_TWINAX_ACTIVE) | |
1382 | cmd->port = PORT_DA; | |
1383 | else | |
1384 | cmd->port = PORT_FIBRE; | |
1385 | } else | |
b8ff05a9 DM |
1386 | cmd->port = PORT_OTHER; |
1387 | ||
1388 | if (p->mdio_addr >= 0) { | |
1389 | cmd->phy_address = p->mdio_addr; | |
1390 | cmd->transceiver = XCVR_EXTERNAL; | |
1391 | cmd->mdio_support = p->port_type == FW_PORT_TYPE_BT_SGMII ? | |
1392 | MDIO_SUPPORTS_C22 : MDIO_SUPPORTS_C45; | |
1393 | } else { | |
1394 | cmd->phy_address = 0; /* not really, but no better option */ | |
1395 | cmd->transceiver = XCVR_INTERNAL; | |
1396 | cmd->mdio_support = 0; | |
1397 | } | |
1398 | ||
1399 | cmd->supported = from_fw_linkcaps(p->port_type, p->link_cfg.supported); | |
1400 | cmd->advertising = from_fw_linkcaps(p->port_type, | |
1401 | p->link_cfg.advertising); | |
1402 | cmd->speed = netif_carrier_ok(dev) ? p->link_cfg.speed : 0; | |
1403 | cmd->duplex = DUPLEX_FULL; | |
1404 | cmd->autoneg = p->link_cfg.autoneg; | |
1405 | cmd->maxtxpkt = 0; | |
1406 | cmd->maxrxpkt = 0; | |
1407 | return 0; | |
1408 | } | |
1409 | ||
1410 | static unsigned int speed_to_caps(int speed) | |
1411 | { | |
1412 | if (speed == SPEED_100) | |
1413 | return FW_PORT_CAP_SPEED_100M; | |
1414 | if (speed == SPEED_1000) | |
1415 | return FW_PORT_CAP_SPEED_1G; | |
1416 | if (speed == SPEED_10000) | |
1417 | return FW_PORT_CAP_SPEED_10G; | |
1418 | return 0; | |
1419 | } | |
1420 | ||
1421 | static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1422 | { | |
1423 | unsigned int cap; | |
1424 | struct port_info *p = netdev_priv(dev); | |
1425 | struct link_config *lc = &p->link_cfg; | |
1426 | ||
1427 | if (cmd->duplex != DUPLEX_FULL) /* only full-duplex supported */ | |
1428 | return -EINVAL; | |
1429 | ||
1430 | if (!(lc->supported & FW_PORT_CAP_ANEG)) { | |
1431 | /* | |
1432 | * PHY offers a single speed. See if that's what's | |
1433 | * being requested. | |
1434 | */ | |
1435 | if (cmd->autoneg == AUTONEG_DISABLE && | |
1436 | (lc->supported & speed_to_caps(cmd->speed))) | |
1437 | return 0; | |
1438 | return -EINVAL; | |
1439 | } | |
1440 | ||
1441 | if (cmd->autoneg == AUTONEG_DISABLE) { | |
1442 | cap = speed_to_caps(cmd->speed); | |
1443 | ||
1444 | if (!(lc->supported & cap) || cmd->speed == SPEED_1000 || | |
1445 | cmd->speed == SPEED_10000) | |
1446 | return -EINVAL; | |
1447 | lc->requested_speed = cap; | |
1448 | lc->advertising = 0; | |
1449 | } else { | |
1450 | cap = to_fw_linkcaps(cmd->advertising); | |
1451 | if (!(lc->supported & cap)) | |
1452 | return -EINVAL; | |
1453 | lc->requested_speed = 0; | |
1454 | lc->advertising = cap | FW_PORT_CAP_ANEG; | |
1455 | } | |
1456 | lc->autoneg = cmd->autoneg; | |
1457 | ||
1458 | if (netif_running(dev)) | |
1459 | return t4_link_start(p->adapter, 0, p->tx_chan, lc); | |
1460 | return 0; | |
1461 | } | |
1462 | ||
1463 | static void get_pauseparam(struct net_device *dev, | |
1464 | struct ethtool_pauseparam *epause) | |
1465 | { | |
1466 | struct port_info *p = netdev_priv(dev); | |
1467 | ||
1468 | epause->autoneg = (p->link_cfg.requested_fc & PAUSE_AUTONEG) != 0; | |
1469 | epause->rx_pause = (p->link_cfg.fc & PAUSE_RX) != 0; | |
1470 | epause->tx_pause = (p->link_cfg.fc & PAUSE_TX) != 0; | |
1471 | } | |
1472 | ||
1473 | static int set_pauseparam(struct net_device *dev, | |
1474 | struct ethtool_pauseparam *epause) | |
1475 | { | |
1476 | struct port_info *p = netdev_priv(dev); | |
1477 | struct link_config *lc = &p->link_cfg; | |
1478 | ||
1479 | if (epause->autoneg == AUTONEG_DISABLE) | |
1480 | lc->requested_fc = 0; | |
1481 | else if (lc->supported & FW_PORT_CAP_ANEG) | |
1482 | lc->requested_fc = PAUSE_AUTONEG; | |
1483 | else | |
1484 | return -EINVAL; | |
1485 | ||
1486 | if (epause->rx_pause) | |
1487 | lc->requested_fc |= PAUSE_RX; | |
1488 | if (epause->tx_pause) | |
1489 | lc->requested_fc |= PAUSE_TX; | |
1490 | if (netif_running(dev)) | |
1491 | return t4_link_start(p->adapter, 0, p->tx_chan, lc); | |
1492 | return 0; | |
1493 | } | |
1494 | ||
1495 | static u32 get_rx_csum(struct net_device *dev) | |
1496 | { | |
1497 | struct port_info *p = netdev_priv(dev); | |
1498 | ||
1499 | return p->rx_offload & RX_CSO; | |
1500 | } | |
1501 | ||
1502 | static int set_rx_csum(struct net_device *dev, u32 data) | |
1503 | { | |
1504 | struct port_info *p = netdev_priv(dev); | |
1505 | ||
1506 | if (data) | |
1507 | p->rx_offload |= RX_CSO; | |
1508 | else | |
1509 | p->rx_offload &= ~RX_CSO; | |
1510 | return 0; | |
1511 | } | |
1512 | ||
1513 | static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e) | |
1514 | { | |
1515 | const struct port_info *pi = netdev_priv(dev); | |
1516 | const struct sge *s = &pi->adapter->sge; | |
1517 | ||
1518 | e->rx_max_pending = MAX_RX_BUFFERS; | |
1519 | e->rx_mini_max_pending = MAX_RSPQ_ENTRIES; | |
1520 | e->rx_jumbo_max_pending = 0; | |
1521 | e->tx_max_pending = MAX_TXQ_ENTRIES; | |
1522 | ||
1523 | e->rx_pending = s->ethrxq[pi->first_qset].fl.size - 8; | |
1524 | e->rx_mini_pending = s->ethrxq[pi->first_qset].rspq.size; | |
1525 | e->rx_jumbo_pending = 0; | |
1526 | e->tx_pending = s->ethtxq[pi->first_qset].q.size; | |
1527 | } | |
1528 | ||
1529 | static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e) | |
1530 | { | |
1531 | int i; | |
1532 | const struct port_info *pi = netdev_priv(dev); | |
1533 | struct adapter *adapter = pi->adapter; | |
1534 | struct sge *s = &adapter->sge; | |
1535 | ||
1536 | if (e->rx_pending > MAX_RX_BUFFERS || e->rx_jumbo_pending || | |
1537 | e->tx_pending > MAX_TXQ_ENTRIES || | |
1538 | e->rx_mini_pending > MAX_RSPQ_ENTRIES || | |
1539 | e->rx_mini_pending < MIN_RSPQ_ENTRIES || | |
1540 | e->rx_pending < MIN_FL_ENTRIES || e->tx_pending < MIN_TXQ_ENTRIES) | |
1541 | return -EINVAL; | |
1542 | ||
1543 | if (adapter->flags & FULL_INIT_DONE) | |
1544 | return -EBUSY; | |
1545 | ||
1546 | for (i = 0; i < pi->nqsets; ++i) { | |
1547 | s->ethtxq[pi->first_qset + i].q.size = e->tx_pending; | |
1548 | s->ethrxq[pi->first_qset + i].fl.size = e->rx_pending + 8; | |
1549 | s->ethrxq[pi->first_qset + i].rspq.size = e->rx_mini_pending; | |
1550 | } | |
1551 | return 0; | |
1552 | } | |
1553 | ||
1554 | static int closest_timer(const struct sge *s, int time) | |
1555 | { | |
1556 | int i, delta, match = 0, min_delta = INT_MAX; | |
1557 | ||
1558 | for (i = 0; i < ARRAY_SIZE(s->timer_val); i++) { | |
1559 | delta = time - s->timer_val[i]; | |
1560 | if (delta < 0) | |
1561 | delta = -delta; | |
1562 | if (delta < min_delta) { | |
1563 | min_delta = delta; | |
1564 | match = i; | |
1565 | } | |
1566 | } | |
1567 | return match; | |
1568 | } | |
1569 | ||
1570 | static int closest_thres(const struct sge *s, int thres) | |
1571 | { | |
1572 | int i, delta, match = 0, min_delta = INT_MAX; | |
1573 | ||
1574 | for (i = 0; i < ARRAY_SIZE(s->counter_val); i++) { | |
1575 | delta = thres - s->counter_val[i]; | |
1576 | if (delta < 0) | |
1577 | delta = -delta; | |
1578 | if (delta < min_delta) { | |
1579 | min_delta = delta; | |
1580 | match = i; | |
1581 | } | |
1582 | } | |
1583 | return match; | |
1584 | } | |
1585 | ||
1586 | /* | |
1587 | * Return a queue's interrupt hold-off time in us. 0 means no timer. | |
1588 | */ | |
1589 | static unsigned int qtimer_val(const struct adapter *adap, | |
1590 | const struct sge_rspq *q) | |
1591 | { | |
1592 | unsigned int idx = q->intr_params >> 1; | |
1593 | ||
1594 | return idx < SGE_NTIMERS ? adap->sge.timer_val[idx] : 0; | |
1595 | } | |
1596 | ||
1597 | /** | |
1598 | * set_rxq_intr_params - set a queue's interrupt holdoff parameters | |
1599 | * @adap: the adapter | |
1600 | * @q: the Rx queue | |
1601 | * @us: the hold-off time in us, or 0 to disable timer | |
1602 | * @cnt: the hold-off packet count, or 0 to disable counter | |
1603 | * | |
1604 | * Sets an Rx queue's interrupt hold-off time and packet count. At least | |
1605 | * one of the two needs to be enabled for the queue to generate interrupts. | |
1606 | */ | |
1607 | static int set_rxq_intr_params(struct adapter *adap, struct sge_rspq *q, | |
1608 | unsigned int us, unsigned int cnt) | |
1609 | { | |
1610 | if ((us | cnt) == 0) | |
1611 | cnt = 1; | |
1612 | ||
1613 | if (cnt) { | |
1614 | int err; | |
1615 | u32 v, new_idx; | |
1616 | ||
1617 | new_idx = closest_thres(&adap->sge, cnt); | |
1618 | if (q->desc && q->pktcnt_idx != new_idx) { | |
1619 | /* the queue has already been created, update it */ | |
1620 | v = FW_PARAMS_MNEM(FW_PARAMS_MNEM_DMAQ) | | |
1621 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DMAQ_IQ_INTCNTTHRESH) | | |
1622 | FW_PARAMS_PARAM_YZ(q->cntxt_id); | |
1623 | err = t4_set_params(adap, 0, 0, 0, 1, &v, &new_idx); | |
1624 | if (err) | |
1625 | return err; | |
1626 | } | |
1627 | q->pktcnt_idx = new_idx; | |
1628 | } | |
1629 | ||
1630 | us = us == 0 ? 6 : closest_timer(&adap->sge, us); | |
1631 | q->intr_params = QINTR_TIMER_IDX(us) | (cnt > 0 ? QINTR_CNT_EN : 0); | |
1632 | return 0; | |
1633 | } | |
1634 | ||
1635 | static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c) | |
1636 | { | |
1637 | const struct port_info *pi = netdev_priv(dev); | |
1638 | struct adapter *adap = pi->adapter; | |
1639 | ||
1640 | return set_rxq_intr_params(adap, &adap->sge.ethrxq[pi->first_qset].rspq, | |
1641 | c->rx_coalesce_usecs, c->rx_max_coalesced_frames); | |
1642 | } | |
1643 | ||
1644 | static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) | |
1645 | { | |
1646 | const struct port_info *pi = netdev_priv(dev); | |
1647 | const struct adapter *adap = pi->adapter; | |
1648 | const struct sge_rspq *rq = &adap->sge.ethrxq[pi->first_qset].rspq; | |
1649 | ||
1650 | c->rx_coalesce_usecs = qtimer_val(adap, rq); | |
1651 | c->rx_max_coalesced_frames = (rq->intr_params & QINTR_CNT_EN) ? | |
1652 | adap->sge.counter_val[rq->pktcnt_idx] : 0; | |
1653 | return 0; | |
1654 | } | |
1655 | ||
1656 | /* | |
1657 | * Translate a physical EEPROM address to virtual. The first 1K is accessed | |
1658 | * through virtual addresses starting at 31K, the rest is accessed through | |
1659 | * virtual addresses starting at 0. This mapping is correct only for PF0. | |
1660 | */ | |
1661 | static int eeprom_ptov(unsigned int phys_addr) | |
1662 | { | |
1663 | if (phys_addr < 1024) | |
1664 | return phys_addr + (31 << 10); | |
1665 | if (phys_addr < EEPROMSIZE) | |
1666 | return phys_addr - 1024; | |
1667 | return -EINVAL; | |
1668 | } | |
1669 | ||
1670 | /* | |
1671 | * The next two routines implement eeprom read/write from physical addresses. | |
1672 | * The physical->virtual translation is correct only for PF0. | |
1673 | */ | |
1674 | static int eeprom_rd_phys(struct adapter *adap, unsigned int phys_addr, u32 *v) | |
1675 | { | |
1676 | int vaddr = eeprom_ptov(phys_addr); | |
1677 | ||
1678 | if (vaddr >= 0) | |
1679 | vaddr = pci_read_vpd(adap->pdev, vaddr, sizeof(u32), v); | |
1680 | return vaddr < 0 ? vaddr : 0; | |
1681 | } | |
1682 | ||
1683 | static int eeprom_wr_phys(struct adapter *adap, unsigned int phys_addr, u32 v) | |
1684 | { | |
1685 | int vaddr = eeprom_ptov(phys_addr); | |
1686 | ||
1687 | if (vaddr >= 0) | |
1688 | vaddr = pci_write_vpd(adap->pdev, vaddr, sizeof(u32), &v); | |
1689 | return vaddr < 0 ? vaddr : 0; | |
1690 | } | |
1691 | ||
1692 | #define EEPROM_MAGIC 0x38E2F10C | |
1693 | ||
1694 | static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e, | |
1695 | u8 *data) | |
1696 | { | |
1697 | int i, err = 0; | |
1698 | struct adapter *adapter = netdev2adap(dev); | |
1699 | ||
1700 | u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL); | |
1701 | if (!buf) | |
1702 | return -ENOMEM; | |
1703 | ||
1704 | e->magic = EEPROM_MAGIC; | |
1705 | for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4) | |
1706 | err = eeprom_rd_phys(adapter, i, (u32 *)&buf[i]); | |
1707 | ||
1708 | if (!err) | |
1709 | memcpy(data, buf + e->offset, e->len); | |
1710 | kfree(buf); | |
1711 | return err; | |
1712 | } | |
1713 | ||
1714 | static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, | |
1715 | u8 *data) | |
1716 | { | |
1717 | u8 *buf; | |
1718 | int err = 0; | |
1719 | u32 aligned_offset, aligned_len, *p; | |
1720 | struct adapter *adapter = netdev2adap(dev); | |
1721 | ||
1722 | if (eeprom->magic != EEPROM_MAGIC) | |
1723 | return -EINVAL; | |
1724 | ||
1725 | aligned_offset = eeprom->offset & ~3; | |
1726 | aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3; | |
1727 | ||
1728 | if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) { | |
1729 | /* | |
1730 | * RMW possibly needed for first or last words. | |
1731 | */ | |
1732 | buf = kmalloc(aligned_len, GFP_KERNEL); | |
1733 | if (!buf) | |
1734 | return -ENOMEM; | |
1735 | err = eeprom_rd_phys(adapter, aligned_offset, (u32 *)buf); | |
1736 | if (!err && aligned_len > 4) | |
1737 | err = eeprom_rd_phys(adapter, | |
1738 | aligned_offset + aligned_len - 4, | |
1739 | (u32 *)&buf[aligned_len - 4]); | |
1740 | if (err) | |
1741 | goto out; | |
1742 | memcpy(buf + (eeprom->offset & 3), data, eeprom->len); | |
1743 | } else | |
1744 | buf = data; | |
1745 | ||
1746 | err = t4_seeprom_wp(adapter, false); | |
1747 | if (err) | |
1748 | goto out; | |
1749 | ||
1750 | for (p = (u32 *)buf; !err && aligned_len; aligned_len -= 4, p++) { | |
1751 | err = eeprom_wr_phys(adapter, aligned_offset, *p); | |
1752 | aligned_offset += 4; | |
1753 | } | |
1754 | ||
1755 | if (!err) | |
1756 | err = t4_seeprom_wp(adapter, true); | |
1757 | out: | |
1758 | if (buf != data) | |
1759 | kfree(buf); | |
1760 | return err; | |
1761 | } | |
1762 | ||
1763 | static int set_flash(struct net_device *netdev, struct ethtool_flash *ef) | |
1764 | { | |
1765 | int ret; | |
1766 | const struct firmware *fw; | |
1767 | struct adapter *adap = netdev2adap(netdev); | |
1768 | ||
1769 | ef->data[sizeof(ef->data) - 1] = '\0'; | |
1770 | ret = request_firmware(&fw, ef->data, adap->pdev_dev); | |
1771 | if (ret < 0) | |
1772 | return ret; | |
1773 | ||
1774 | ret = t4_load_fw(adap, fw->data, fw->size); | |
1775 | release_firmware(fw); | |
1776 | if (!ret) | |
1777 | dev_info(adap->pdev_dev, "loaded firmware %s\n", ef->data); | |
1778 | return ret; | |
1779 | } | |
1780 | ||
1781 | #define WOL_SUPPORTED (WAKE_BCAST | WAKE_MAGIC) | |
1782 | #define BCAST_CRC 0xa0ccc1a6 | |
1783 | ||
1784 | static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1785 | { | |
1786 | wol->supported = WAKE_BCAST | WAKE_MAGIC; | |
1787 | wol->wolopts = netdev2adap(dev)->wol; | |
1788 | memset(&wol->sopass, 0, sizeof(wol->sopass)); | |
1789 | } | |
1790 | ||
1791 | static int set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1792 | { | |
1793 | int err = 0; | |
1794 | struct port_info *pi = netdev_priv(dev); | |
1795 | ||
1796 | if (wol->wolopts & ~WOL_SUPPORTED) | |
1797 | return -EINVAL; | |
1798 | t4_wol_magic_enable(pi->adapter, pi->tx_chan, | |
1799 | (wol->wolopts & WAKE_MAGIC) ? dev->dev_addr : NULL); | |
1800 | if (wol->wolopts & WAKE_BCAST) { | |
1801 | err = t4_wol_pat_enable(pi->adapter, pi->tx_chan, 0xfe, ~0ULL, | |
1802 | ~0ULL, 0, false); | |
1803 | if (!err) | |
1804 | err = t4_wol_pat_enable(pi->adapter, pi->tx_chan, 1, | |
1805 | ~6ULL, ~0ULL, BCAST_CRC, true); | |
1806 | } else | |
1807 | t4_wol_pat_enable(pi->adapter, pi->tx_chan, 0, 0, 0, 0, false); | |
1808 | return err; | |
1809 | } | |
1810 | ||
35d35682 DM |
1811 | #define TSO_FLAGS (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN) |
1812 | ||
b8ff05a9 DM |
1813 | static int set_tso(struct net_device *dev, u32 value) |
1814 | { | |
1815 | if (value) | |
35d35682 | 1816 | dev->features |= TSO_FLAGS; |
b8ff05a9 | 1817 | else |
35d35682 | 1818 | dev->features &= ~TSO_FLAGS; |
b8ff05a9 DM |
1819 | return 0; |
1820 | } | |
1821 | ||
87b6cf51 DM |
1822 | static int set_flags(struct net_device *dev, u32 flags) |
1823 | { | |
1437ce39 | 1824 | return ethtool_op_set_flags(dev, flags, ETH_FLAG_RXHASH); |
87b6cf51 DM |
1825 | } |
1826 | ||
671b0060 DM |
1827 | static int get_rss_table(struct net_device *dev, struct ethtool_rxfh_indir *p) |
1828 | { | |
1829 | const struct port_info *pi = netdev_priv(dev); | |
1830 | unsigned int n = min_t(unsigned int, p->size, pi->rss_size); | |
1831 | ||
1832 | p->size = pi->rss_size; | |
1833 | while (n--) | |
1834 | p->ring_index[n] = pi->rss[n]; | |
1835 | return 0; | |
1836 | } | |
1837 | ||
1838 | static int set_rss_table(struct net_device *dev, | |
1839 | const struct ethtool_rxfh_indir *p) | |
1840 | { | |
1841 | unsigned int i; | |
1842 | struct port_info *pi = netdev_priv(dev); | |
1843 | ||
1844 | if (p->size != pi->rss_size) | |
1845 | return -EINVAL; | |
1846 | for (i = 0; i < p->size; i++) | |
1847 | if (p->ring_index[i] >= pi->nqsets) | |
1848 | return -EINVAL; | |
1849 | for (i = 0; i < p->size; i++) | |
1850 | pi->rss[i] = p->ring_index[i]; | |
1851 | if (pi->adapter->flags & FULL_INIT_DONE) | |
1852 | return write_rss(pi, pi->rss); | |
1853 | return 0; | |
1854 | } | |
1855 | ||
1856 | static int get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info, | |
1857 | void *rules) | |
1858 | { | |
f796564a DM |
1859 | const struct port_info *pi = netdev_priv(dev); |
1860 | ||
671b0060 | 1861 | switch (info->cmd) { |
f796564a DM |
1862 | case ETHTOOL_GRXFH: { |
1863 | unsigned int v = pi->rss_mode; | |
1864 | ||
1865 | info->data = 0; | |
1866 | switch (info->flow_type) { | |
1867 | case TCP_V4_FLOW: | |
1868 | if (v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) | |
1869 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
1870 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
1871 | else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) | |
1872 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
1873 | break; | |
1874 | case UDP_V4_FLOW: | |
1875 | if ((v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) && | |
1876 | (v & FW_RSS_VI_CONFIG_CMD_UDPEN)) | |
1877 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
1878 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
1879 | else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) | |
1880 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
1881 | break; | |
1882 | case SCTP_V4_FLOW: | |
1883 | case AH_ESP_V4_FLOW: | |
1884 | case IPV4_FLOW: | |
1885 | if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) | |
1886 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
1887 | break; | |
1888 | case TCP_V6_FLOW: | |
1889 | if (v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) | |
1890 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
1891 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
1892 | else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) | |
1893 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
1894 | break; | |
1895 | case UDP_V6_FLOW: | |
1896 | if ((v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) && | |
1897 | (v & FW_RSS_VI_CONFIG_CMD_UDPEN)) | |
1898 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
1899 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
1900 | else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) | |
1901 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
1902 | break; | |
1903 | case SCTP_V6_FLOW: | |
1904 | case AH_ESP_V6_FLOW: | |
1905 | case IPV6_FLOW: | |
1906 | if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) | |
1907 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
1908 | break; | |
1909 | } | |
1910 | return 0; | |
1911 | } | |
671b0060 | 1912 | case ETHTOOL_GRXRINGS: |
f796564a | 1913 | info->data = pi->nqsets; |
671b0060 DM |
1914 | return 0; |
1915 | } | |
1916 | return -EOPNOTSUPP; | |
1917 | } | |
1918 | ||
b8ff05a9 DM |
1919 | static struct ethtool_ops cxgb_ethtool_ops = { |
1920 | .get_settings = get_settings, | |
1921 | .set_settings = set_settings, | |
1922 | .get_drvinfo = get_drvinfo, | |
1923 | .get_msglevel = get_msglevel, | |
1924 | .set_msglevel = set_msglevel, | |
1925 | .get_ringparam = get_sge_param, | |
1926 | .set_ringparam = set_sge_param, | |
1927 | .get_coalesce = get_coalesce, | |
1928 | .set_coalesce = set_coalesce, | |
1929 | .get_eeprom_len = get_eeprom_len, | |
1930 | .get_eeprom = get_eeprom, | |
1931 | .set_eeprom = set_eeprom, | |
1932 | .get_pauseparam = get_pauseparam, | |
1933 | .set_pauseparam = set_pauseparam, | |
1934 | .get_rx_csum = get_rx_csum, | |
1935 | .set_rx_csum = set_rx_csum, | |
1936 | .set_tx_csum = ethtool_op_set_tx_ipv6_csum, | |
1937 | .set_sg = ethtool_op_set_sg, | |
1938 | .get_link = ethtool_op_get_link, | |
1939 | .get_strings = get_strings, | |
1940 | .phys_id = identify_port, | |
1941 | .nway_reset = restart_autoneg, | |
1942 | .get_sset_count = get_sset_count, | |
1943 | .get_ethtool_stats = get_stats, | |
1944 | .get_regs_len = get_regs_len, | |
1945 | .get_regs = get_regs, | |
1946 | .get_wol = get_wol, | |
1947 | .set_wol = set_wol, | |
1948 | .set_tso = set_tso, | |
87b6cf51 | 1949 | .set_flags = set_flags, |
671b0060 DM |
1950 | .get_rxnfc = get_rxnfc, |
1951 | .get_rxfh_indir = get_rss_table, | |
1952 | .set_rxfh_indir = set_rss_table, | |
b8ff05a9 DM |
1953 | .flash_device = set_flash, |
1954 | }; | |
1955 | ||
1956 | /* | |
1957 | * debugfs support | |
1958 | */ | |
1959 | ||
1960 | static int mem_open(struct inode *inode, struct file *file) | |
1961 | { | |
1962 | file->private_data = inode->i_private; | |
1963 | return 0; | |
1964 | } | |
1965 | ||
1966 | static ssize_t mem_read(struct file *file, char __user *buf, size_t count, | |
1967 | loff_t *ppos) | |
1968 | { | |
1969 | loff_t pos = *ppos; | |
1970 | loff_t avail = file->f_path.dentry->d_inode->i_size; | |
1971 | unsigned int mem = (uintptr_t)file->private_data & 3; | |
1972 | struct adapter *adap = file->private_data - mem; | |
1973 | ||
1974 | if (pos < 0) | |
1975 | return -EINVAL; | |
1976 | if (pos >= avail) | |
1977 | return 0; | |
1978 | if (count > avail - pos) | |
1979 | count = avail - pos; | |
1980 | ||
1981 | while (count) { | |
1982 | size_t len; | |
1983 | int ret, ofst; | |
1984 | __be32 data[16]; | |
1985 | ||
1986 | if (mem == MEM_MC) | |
1987 | ret = t4_mc_read(adap, pos, data, NULL); | |
1988 | else | |
1989 | ret = t4_edc_read(adap, mem, pos, data, NULL); | |
1990 | if (ret) | |
1991 | return ret; | |
1992 | ||
1993 | ofst = pos % sizeof(data); | |
1994 | len = min(count, sizeof(data) - ofst); | |
1995 | if (copy_to_user(buf, (u8 *)data + ofst, len)) | |
1996 | return -EFAULT; | |
1997 | ||
1998 | buf += len; | |
1999 | pos += len; | |
2000 | count -= len; | |
2001 | } | |
2002 | count = pos - *ppos; | |
2003 | *ppos = pos; | |
2004 | return count; | |
2005 | } | |
2006 | ||
2007 | static const struct file_operations mem_debugfs_fops = { | |
2008 | .owner = THIS_MODULE, | |
2009 | .open = mem_open, | |
2010 | .read = mem_read, | |
2011 | }; | |
2012 | ||
2013 | static void __devinit add_debugfs_mem(struct adapter *adap, const char *name, | |
2014 | unsigned int idx, unsigned int size_mb) | |
2015 | { | |
2016 | struct dentry *de; | |
2017 | ||
2018 | de = debugfs_create_file(name, S_IRUSR, adap->debugfs_root, | |
2019 | (void *)adap + idx, &mem_debugfs_fops); | |
2020 | if (de && de->d_inode) | |
2021 | de->d_inode->i_size = size_mb << 20; | |
2022 | } | |
2023 | ||
2024 | static int __devinit setup_debugfs(struct adapter *adap) | |
2025 | { | |
2026 | int i; | |
2027 | ||
2028 | if (IS_ERR_OR_NULL(adap->debugfs_root)) | |
2029 | return -1; | |
2030 | ||
2031 | i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE); | |
2032 | if (i & EDRAM0_ENABLE) | |
2033 | add_debugfs_mem(adap, "edc0", MEM_EDC0, 5); | |
2034 | if (i & EDRAM1_ENABLE) | |
2035 | add_debugfs_mem(adap, "edc1", MEM_EDC1, 5); | |
2036 | if (i & EXT_MEM_ENABLE) | |
2037 | add_debugfs_mem(adap, "mc", MEM_MC, | |
2038 | EXT_MEM_SIZE_GET(t4_read_reg(adap, MA_EXT_MEMORY_BAR))); | |
2039 | if (adap->l2t) | |
2040 | debugfs_create_file("l2t", S_IRUSR, adap->debugfs_root, adap, | |
2041 | &t4_l2t_fops); | |
2042 | return 0; | |
2043 | } | |
2044 | ||
2045 | /* | |
2046 | * upper-layer driver support | |
2047 | */ | |
2048 | ||
2049 | /* | |
2050 | * Allocate an active-open TID and set it to the supplied value. | |
2051 | */ | |
2052 | int cxgb4_alloc_atid(struct tid_info *t, void *data) | |
2053 | { | |
2054 | int atid = -1; | |
2055 | ||
2056 | spin_lock_bh(&t->atid_lock); | |
2057 | if (t->afree) { | |
2058 | union aopen_entry *p = t->afree; | |
2059 | ||
2060 | atid = p - t->atid_tab; | |
2061 | t->afree = p->next; | |
2062 | p->data = data; | |
2063 | t->atids_in_use++; | |
2064 | } | |
2065 | spin_unlock_bh(&t->atid_lock); | |
2066 | return atid; | |
2067 | } | |
2068 | EXPORT_SYMBOL(cxgb4_alloc_atid); | |
2069 | ||
2070 | /* | |
2071 | * Release an active-open TID. | |
2072 | */ | |
2073 | void cxgb4_free_atid(struct tid_info *t, unsigned int atid) | |
2074 | { | |
2075 | union aopen_entry *p = &t->atid_tab[atid]; | |
2076 | ||
2077 | spin_lock_bh(&t->atid_lock); | |
2078 | p->next = t->afree; | |
2079 | t->afree = p; | |
2080 | t->atids_in_use--; | |
2081 | spin_unlock_bh(&t->atid_lock); | |
2082 | } | |
2083 | EXPORT_SYMBOL(cxgb4_free_atid); | |
2084 | ||
2085 | /* | |
2086 | * Allocate a server TID and set it to the supplied value. | |
2087 | */ | |
2088 | int cxgb4_alloc_stid(struct tid_info *t, int family, void *data) | |
2089 | { | |
2090 | int stid; | |
2091 | ||
2092 | spin_lock_bh(&t->stid_lock); | |
2093 | if (family == PF_INET) { | |
2094 | stid = find_first_zero_bit(t->stid_bmap, t->nstids); | |
2095 | if (stid < t->nstids) | |
2096 | __set_bit(stid, t->stid_bmap); | |
2097 | else | |
2098 | stid = -1; | |
2099 | } else { | |
2100 | stid = bitmap_find_free_region(t->stid_bmap, t->nstids, 2); | |
2101 | if (stid < 0) | |
2102 | stid = -1; | |
2103 | } | |
2104 | if (stid >= 0) { | |
2105 | t->stid_tab[stid].data = data; | |
2106 | stid += t->stid_base; | |
2107 | t->stids_in_use++; | |
2108 | } | |
2109 | spin_unlock_bh(&t->stid_lock); | |
2110 | return stid; | |
2111 | } | |
2112 | EXPORT_SYMBOL(cxgb4_alloc_stid); | |
2113 | ||
2114 | /* | |
2115 | * Release a server TID. | |
2116 | */ | |
2117 | void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family) | |
2118 | { | |
2119 | stid -= t->stid_base; | |
2120 | spin_lock_bh(&t->stid_lock); | |
2121 | if (family == PF_INET) | |
2122 | __clear_bit(stid, t->stid_bmap); | |
2123 | else | |
2124 | bitmap_release_region(t->stid_bmap, stid, 2); | |
2125 | t->stid_tab[stid].data = NULL; | |
2126 | t->stids_in_use--; | |
2127 | spin_unlock_bh(&t->stid_lock); | |
2128 | } | |
2129 | EXPORT_SYMBOL(cxgb4_free_stid); | |
2130 | ||
2131 | /* | |
2132 | * Populate a TID_RELEASE WR. Caller must properly size the skb. | |
2133 | */ | |
2134 | static void mk_tid_release(struct sk_buff *skb, unsigned int chan, | |
2135 | unsigned int tid) | |
2136 | { | |
2137 | struct cpl_tid_release *req; | |
2138 | ||
2139 | set_wr_txq(skb, CPL_PRIORITY_SETUP, chan); | |
2140 | req = (struct cpl_tid_release *)__skb_put(skb, sizeof(*req)); | |
2141 | INIT_TP_WR(req, tid); | |
2142 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_TID_RELEASE, tid)); | |
2143 | } | |
2144 | ||
2145 | /* | |
2146 | * Queue a TID release request and if necessary schedule a work queue to | |
2147 | * process it. | |
2148 | */ | |
2149 | void cxgb4_queue_tid_release(struct tid_info *t, unsigned int chan, | |
2150 | unsigned int tid) | |
2151 | { | |
2152 | void **p = &t->tid_tab[tid]; | |
2153 | struct adapter *adap = container_of(t, struct adapter, tids); | |
2154 | ||
2155 | spin_lock_bh(&adap->tid_release_lock); | |
2156 | *p = adap->tid_release_head; | |
2157 | /* Low 2 bits encode the Tx channel number */ | |
2158 | adap->tid_release_head = (void **)((uintptr_t)p | chan); | |
2159 | if (!adap->tid_release_task_busy) { | |
2160 | adap->tid_release_task_busy = true; | |
2161 | schedule_work(&adap->tid_release_task); | |
2162 | } | |
2163 | spin_unlock_bh(&adap->tid_release_lock); | |
2164 | } | |
2165 | EXPORT_SYMBOL(cxgb4_queue_tid_release); | |
2166 | ||
2167 | /* | |
2168 | * Process the list of pending TID release requests. | |
2169 | */ | |
2170 | static void process_tid_release_list(struct work_struct *work) | |
2171 | { | |
2172 | struct sk_buff *skb; | |
2173 | struct adapter *adap; | |
2174 | ||
2175 | adap = container_of(work, struct adapter, tid_release_task); | |
2176 | ||
2177 | spin_lock_bh(&adap->tid_release_lock); | |
2178 | while (adap->tid_release_head) { | |
2179 | void **p = adap->tid_release_head; | |
2180 | unsigned int chan = (uintptr_t)p & 3; | |
2181 | p = (void *)p - chan; | |
2182 | ||
2183 | adap->tid_release_head = *p; | |
2184 | *p = NULL; | |
2185 | spin_unlock_bh(&adap->tid_release_lock); | |
2186 | ||
2187 | while (!(skb = alloc_skb(sizeof(struct cpl_tid_release), | |
2188 | GFP_KERNEL))) | |
2189 | schedule_timeout_uninterruptible(1); | |
2190 | ||
2191 | mk_tid_release(skb, chan, p - adap->tids.tid_tab); | |
2192 | t4_ofld_send(adap, skb); | |
2193 | spin_lock_bh(&adap->tid_release_lock); | |
2194 | } | |
2195 | adap->tid_release_task_busy = false; | |
2196 | spin_unlock_bh(&adap->tid_release_lock); | |
2197 | } | |
2198 | ||
2199 | /* | |
2200 | * Release a TID and inform HW. If we are unable to allocate the release | |
2201 | * message we defer to a work queue. | |
2202 | */ | |
2203 | void cxgb4_remove_tid(struct tid_info *t, unsigned int chan, unsigned int tid) | |
2204 | { | |
2205 | void *old; | |
2206 | struct sk_buff *skb; | |
2207 | struct adapter *adap = container_of(t, struct adapter, tids); | |
2208 | ||
2209 | old = t->tid_tab[tid]; | |
2210 | skb = alloc_skb(sizeof(struct cpl_tid_release), GFP_ATOMIC); | |
2211 | if (likely(skb)) { | |
2212 | t->tid_tab[tid] = NULL; | |
2213 | mk_tid_release(skb, chan, tid); | |
2214 | t4_ofld_send(adap, skb); | |
2215 | } else | |
2216 | cxgb4_queue_tid_release(t, chan, tid); | |
2217 | if (old) | |
2218 | atomic_dec(&t->tids_in_use); | |
2219 | } | |
2220 | EXPORT_SYMBOL(cxgb4_remove_tid); | |
2221 | ||
2222 | /* | |
2223 | * Allocate and initialize the TID tables. Returns 0 on success. | |
2224 | */ | |
2225 | static int tid_init(struct tid_info *t) | |
2226 | { | |
2227 | size_t size; | |
2228 | unsigned int natids = t->natids; | |
2229 | ||
2230 | size = t->ntids * sizeof(*t->tid_tab) + natids * sizeof(*t->atid_tab) + | |
2231 | t->nstids * sizeof(*t->stid_tab) + | |
2232 | BITS_TO_LONGS(t->nstids) * sizeof(long); | |
2233 | t->tid_tab = t4_alloc_mem(size); | |
2234 | if (!t->tid_tab) | |
2235 | return -ENOMEM; | |
2236 | ||
2237 | t->atid_tab = (union aopen_entry *)&t->tid_tab[t->ntids]; | |
2238 | t->stid_tab = (struct serv_entry *)&t->atid_tab[natids]; | |
2239 | t->stid_bmap = (unsigned long *)&t->stid_tab[t->nstids]; | |
2240 | spin_lock_init(&t->stid_lock); | |
2241 | spin_lock_init(&t->atid_lock); | |
2242 | ||
2243 | t->stids_in_use = 0; | |
2244 | t->afree = NULL; | |
2245 | t->atids_in_use = 0; | |
2246 | atomic_set(&t->tids_in_use, 0); | |
2247 | ||
2248 | /* Setup the free list for atid_tab and clear the stid bitmap. */ | |
2249 | if (natids) { | |
2250 | while (--natids) | |
2251 | t->atid_tab[natids - 1].next = &t->atid_tab[natids]; | |
2252 | t->afree = t->atid_tab; | |
2253 | } | |
2254 | bitmap_zero(t->stid_bmap, t->nstids); | |
2255 | return 0; | |
2256 | } | |
2257 | ||
2258 | /** | |
2259 | * cxgb4_create_server - create an IP server | |
2260 | * @dev: the device | |
2261 | * @stid: the server TID | |
2262 | * @sip: local IP address to bind server to | |
2263 | * @sport: the server's TCP port | |
2264 | * @queue: queue to direct messages from this server to | |
2265 | * | |
2266 | * Create an IP server for the given port and address. | |
2267 | * Returns <0 on error and one of the %NET_XMIT_* values on success. | |
2268 | */ | |
2269 | int cxgb4_create_server(const struct net_device *dev, unsigned int stid, | |
2270 | __be32 sip, __be16 sport, unsigned int queue) | |
2271 | { | |
2272 | unsigned int chan; | |
2273 | struct sk_buff *skb; | |
2274 | struct adapter *adap; | |
2275 | struct cpl_pass_open_req *req; | |
2276 | ||
2277 | skb = alloc_skb(sizeof(*req), GFP_KERNEL); | |
2278 | if (!skb) | |
2279 | return -ENOMEM; | |
2280 | ||
2281 | adap = netdev2adap(dev); | |
2282 | req = (struct cpl_pass_open_req *)__skb_put(skb, sizeof(*req)); | |
2283 | INIT_TP_WR(req, 0); | |
2284 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_PASS_OPEN_REQ, stid)); | |
2285 | req->local_port = sport; | |
2286 | req->peer_port = htons(0); | |
2287 | req->local_ip = sip; | |
2288 | req->peer_ip = htonl(0); | |
2289 | chan = netdev2pinfo(adap->sge.ingr_map[queue]->netdev)->tx_chan; | |
2290 | req->opt0 = cpu_to_be64(TX_CHAN(chan)); | |
2291 | req->opt1 = cpu_to_be64(CONN_POLICY_ASK | | |
2292 | SYN_RSS_ENABLE | SYN_RSS_QUEUE(queue)); | |
2293 | return t4_mgmt_tx(adap, skb); | |
2294 | } | |
2295 | EXPORT_SYMBOL(cxgb4_create_server); | |
2296 | ||
2297 | /** | |
2298 | * cxgb4_create_server6 - create an IPv6 server | |
2299 | * @dev: the device | |
2300 | * @stid: the server TID | |
2301 | * @sip: local IPv6 address to bind server to | |
2302 | * @sport: the server's TCP port | |
2303 | * @queue: queue to direct messages from this server to | |
2304 | * | |
2305 | * Create an IPv6 server for the given port and address. | |
2306 | * Returns <0 on error and one of the %NET_XMIT_* values on success. | |
2307 | */ | |
2308 | int cxgb4_create_server6(const struct net_device *dev, unsigned int stid, | |
2309 | const struct in6_addr *sip, __be16 sport, | |
2310 | unsigned int queue) | |
2311 | { | |
2312 | unsigned int chan; | |
2313 | struct sk_buff *skb; | |
2314 | struct adapter *adap; | |
2315 | struct cpl_pass_open_req6 *req; | |
2316 | ||
2317 | skb = alloc_skb(sizeof(*req), GFP_KERNEL); | |
2318 | if (!skb) | |
2319 | return -ENOMEM; | |
2320 | ||
2321 | adap = netdev2adap(dev); | |
2322 | req = (struct cpl_pass_open_req6 *)__skb_put(skb, sizeof(*req)); | |
2323 | INIT_TP_WR(req, 0); | |
2324 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_PASS_OPEN_REQ6, stid)); | |
2325 | req->local_port = sport; | |
2326 | req->peer_port = htons(0); | |
2327 | req->local_ip_hi = *(__be64 *)(sip->s6_addr); | |
2328 | req->local_ip_lo = *(__be64 *)(sip->s6_addr + 8); | |
2329 | req->peer_ip_hi = cpu_to_be64(0); | |
2330 | req->peer_ip_lo = cpu_to_be64(0); | |
2331 | chan = netdev2pinfo(adap->sge.ingr_map[queue]->netdev)->tx_chan; | |
2332 | req->opt0 = cpu_to_be64(TX_CHAN(chan)); | |
2333 | req->opt1 = cpu_to_be64(CONN_POLICY_ASK | | |
2334 | SYN_RSS_ENABLE | SYN_RSS_QUEUE(queue)); | |
2335 | return t4_mgmt_tx(adap, skb); | |
2336 | } | |
2337 | EXPORT_SYMBOL(cxgb4_create_server6); | |
2338 | ||
2339 | /** | |
2340 | * cxgb4_best_mtu - find the entry in the MTU table closest to an MTU | |
2341 | * @mtus: the HW MTU table | |
2342 | * @mtu: the target MTU | |
2343 | * @idx: index of selected entry in the MTU table | |
2344 | * | |
2345 | * Returns the index and the value in the HW MTU table that is closest to | |
2346 | * but does not exceed @mtu, unless @mtu is smaller than any value in the | |
2347 | * table, in which case that smallest available value is selected. | |
2348 | */ | |
2349 | unsigned int cxgb4_best_mtu(const unsigned short *mtus, unsigned short mtu, | |
2350 | unsigned int *idx) | |
2351 | { | |
2352 | unsigned int i = 0; | |
2353 | ||
2354 | while (i < NMTUS - 1 && mtus[i + 1] <= mtu) | |
2355 | ++i; | |
2356 | if (idx) | |
2357 | *idx = i; | |
2358 | return mtus[i]; | |
2359 | } | |
2360 | EXPORT_SYMBOL(cxgb4_best_mtu); | |
2361 | ||
2362 | /** | |
2363 | * cxgb4_port_chan - get the HW channel of a port | |
2364 | * @dev: the net device for the port | |
2365 | * | |
2366 | * Return the HW Tx channel of the given port. | |
2367 | */ | |
2368 | unsigned int cxgb4_port_chan(const struct net_device *dev) | |
2369 | { | |
2370 | return netdev2pinfo(dev)->tx_chan; | |
2371 | } | |
2372 | EXPORT_SYMBOL(cxgb4_port_chan); | |
2373 | ||
2374 | /** | |
2375 | * cxgb4_port_viid - get the VI id of a port | |
2376 | * @dev: the net device for the port | |
2377 | * | |
2378 | * Return the VI id of the given port. | |
2379 | */ | |
2380 | unsigned int cxgb4_port_viid(const struct net_device *dev) | |
2381 | { | |
2382 | return netdev2pinfo(dev)->viid; | |
2383 | } | |
2384 | EXPORT_SYMBOL(cxgb4_port_viid); | |
2385 | ||
2386 | /** | |
2387 | * cxgb4_port_idx - get the index of a port | |
2388 | * @dev: the net device for the port | |
2389 | * | |
2390 | * Return the index of the given port. | |
2391 | */ | |
2392 | unsigned int cxgb4_port_idx(const struct net_device *dev) | |
2393 | { | |
2394 | return netdev2pinfo(dev)->port_id; | |
2395 | } | |
2396 | EXPORT_SYMBOL(cxgb4_port_idx); | |
2397 | ||
2398 | /** | |
2399 | * cxgb4_netdev_by_hwid - return the net device of a HW port | |
2400 | * @pdev: identifies the adapter | |
2401 | * @id: the HW port id | |
2402 | * | |
2403 | * Return the net device associated with the interface with the given HW | |
2404 | * id. | |
2405 | */ | |
2406 | struct net_device *cxgb4_netdev_by_hwid(struct pci_dev *pdev, unsigned int id) | |
2407 | { | |
2408 | const struct adapter *adap = pci_get_drvdata(pdev); | |
2409 | ||
2410 | if (!adap || id >= NCHAN) | |
2411 | return NULL; | |
2412 | id = adap->chan_map[id]; | |
2413 | return id < MAX_NPORTS ? adap->port[id] : NULL; | |
2414 | } | |
2415 | EXPORT_SYMBOL(cxgb4_netdev_by_hwid); | |
2416 | ||
2417 | void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4, | |
2418 | struct tp_tcp_stats *v6) | |
2419 | { | |
2420 | struct adapter *adap = pci_get_drvdata(pdev); | |
2421 | ||
2422 | spin_lock(&adap->stats_lock); | |
2423 | t4_tp_get_tcp_stats(adap, v4, v6); | |
2424 | spin_unlock(&adap->stats_lock); | |
2425 | } | |
2426 | EXPORT_SYMBOL(cxgb4_get_tcp_stats); | |
2427 | ||
2428 | void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask, | |
2429 | const unsigned int *pgsz_order) | |
2430 | { | |
2431 | struct adapter *adap = netdev2adap(dev); | |
2432 | ||
2433 | t4_write_reg(adap, ULP_RX_ISCSI_TAGMASK, tag_mask); | |
2434 | t4_write_reg(adap, ULP_RX_ISCSI_PSZ, HPZ0(pgsz_order[0]) | | |
2435 | HPZ1(pgsz_order[1]) | HPZ2(pgsz_order[2]) | | |
2436 | HPZ3(pgsz_order[3])); | |
2437 | } | |
2438 | EXPORT_SYMBOL(cxgb4_iscsi_init); | |
2439 | ||
2440 | static struct pci_driver cxgb4_driver; | |
2441 | ||
2442 | static void check_neigh_update(struct neighbour *neigh) | |
2443 | { | |
2444 | const struct device *parent; | |
2445 | const struct net_device *netdev = neigh->dev; | |
2446 | ||
2447 | if (netdev->priv_flags & IFF_802_1Q_VLAN) | |
2448 | netdev = vlan_dev_real_dev(netdev); | |
2449 | parent = netdev->dev.parent; | |
2450 | if (parent && parent->driver == &cxgb4_driver.driver) | |
2451 | t4_l2t_update(dev_get_drvdata(parent), neigh); | |
2452 | } | |
2453 | ||
2454 | static int netevent_cb(struct notifier_block *nb, unsigned long event, | |
2455 | void *data) | |
2456 | { | |
2457 | switch (event) { | |
2458 | case NETEVENT_NEIGH_UPDATE: | |
2459 | check_neigh_update(data); | |
2460 | break; | |
2461 | case NETEVENT_PMTU_UPDATE: | |
2462 | case NETEVENT_REDIRECT: | |
2463 | default: | |
2464 | break; | |
2465 | } | |
2466 | return 0; | |
2467 | } | |
2468 | ||
2469 | static bool netevent_registered; | |
2470 | static struct notifier_block cxgb4_netevent_nb = { | |
2471 | .notifier_call = netevent_cb | |
2472 | }; | |
2473 | ||
2474 | static void uld_attach(struct adapter *adap, unsigned int uld) | |
2475 | { | |
2476 | void *handle; | |
2477 | struct cxgb4_lld_info lli; | |
2478 | ||
2479 | lli.pdev = adap->pdev; | |
2480 | lli.l2t = adap->l2t; | |
2481 | lli.tids = &adap->tids; | |
2482 | lli.ports = adap->port; | |
2483 | lli.vr = &adap->vres; | |
2484 | lli.mtus = adap->params.mtus; | |
2485 | if (uld == CXGB4_ULD_RDMA) { | |
2486 | lli.rxq_ids = adap->sge.rdma_rxq; | |
2487 | lli.nrxq = adap->sge.rdmaqs; | |
2488 | } else if (uld == CXGB4_ULD_ISCSI) { | |
2489 | lli.rxq_ids = adap->sge.ofld_rxq; | |
2490 | lli.nrxq = adap->sge.ofldqsets; | |
2491 | } | |
2492 | lli.ntxq = adap->sge.ofldqsets; | |
2493 | lli.nchan = adap->params.nports; | |
2494 | lli.nports = adap->params.nports; | |
2495 | lli.wr_cred = adap->params.ofldq_wr_cred; | |
2496 | lli.adapter_type = adap->params.rev; | |
2497 | lli.iscsi_iolen = MAXRXDATA_GET(t4_read_reg(adap, TP_PARA_REG2)); | |
2498 | lli.udb_density = 1 << QUEUESPERPAGEPF0_GET( | |
2499 | t4_read_reg(adap, SGE_EGRESS_QUEUES_PER_PAGE_PF)); | |
2500 | lli.ucq_density = 1 << QUEUESPERPAGEPF0_GET( | |
2501 | t4_read_reg(adap, SGE_INGRESS_QUEUES_PER_PAGE_PF)); | |
2502 | lli.gts_reg = adap->regs + MYPF_REG(SGE_PF_GTS); | |
2503 | lli.db_reg = adap->regs + MYPF_REG(SGE_PF_KDOORBELL); | |
2504 | lli.fw_vers = adap->params.fw_vers; | |
2505 | ||
2506 | handle = ulds[uld].add(&lli); | |
2507 | if (IS_ERR(handle)) { | |
2508 | dev_warn(adap->pdev_dev, | |
2509 | "could not attach to the %s driver, error %ld\n", | |
2510 | uld_str[uld], PTR_ERR(handle)); | |
2511 | return; | |
2512 | } | |
2513 | ||
2514 | adap->uld_handle[uld] = handle; | |
2515 | ||
2516 | if (!netevent_registered) { | |
2517 | register_netevent_notifier(&cxgb4_netevent_nb); | |
2518 | netevent_registered = true; | |
2519 | } | |
e29f5dbc DM |
2520 | |
2521 | if (adap->flags & FULL_INIT_DONE) | |
2522 | ulds[uld].state_change(handle, CXGB4_STATE_UP); | |
b8ff05a9 DM |
2523 | } |
2524 | ||
2525 | static void attach_ulds(struct adapter *adap) | |
2526 | { | |
2527 | unsigned int i; | |
2528 | ||
2529 | mutex_lock(&uld_mutex); | |
2530 | list_add_tail(&adap->list_node, &adapter_list); | |
2531 | for (i = 0; i < CXGB4_ULD_MAX; i++) | |
2532 | if (ulds[i].add) | |
2533 | uld_attach(adap, i); | |
2534 | mutex_unlock(&uld_mutex); | |
2535 | } | |
2536 | ||
2537 | static void detach_ulds(struct adapter *adap) | |
2538 | { | |
2539 | unsigned int i; | |
2540 | ||
2541 | mutex_lock(&uld_mutex); | |
2542 | list_del(&adap->list_node); | |
2543 | for (i = 0; i < CXGB4_ULD_MAX; i++) | |
2544 | if (adap->uld_handle[i]) { | |
2545 | ulds[i].state_change(adap->uld_handle[i], | |
2546 | CXGB4_STATE_DETACH); | |
2547 | adap->uld_handle[i] = NULL; | |
2548 | } | |
2549 | if (netevent_registered && list_empty(&adapter_list)) { | |
2550 | unregister_netevent_notifier(&cxgb4_netevent_nb); | |
2551 | netevent_registered = false; | |
2552 | } | |
2553 | mutex_unlock(&uld_mutex); | |
2554 | } | |
2555 | ||
2556 | static void notify_ulds(struct adapter *adap, enum cxgb4_state new_state) | |
2557 | { | |
2558 | unsigned int i; | |
2559 | ||
2560 | mutex_lock(&uld_mutex); | |
2561 | for (i = 0; i < CXGB4_ULD_MAX; i++) | |
2562 | if (adap->uld_handle[i]) | |
2563 | ulds[i].state_change(adap->uld_handle[i], new_state); | |
2564 | mutex_unlock(&uld_mutex); | |
2565 | } | |
2566 | ||
2567 | /** | |
2568 | * cxgb4_register_uld - register an upper-layer driver | |
2569 | * @type: the ULD type | |
2570 | * @p: the ULD methods | |
2571 | * | |
2572 | * Registers an upper-layer driver with this driver and notifies the ULD | |
2573 | * about any presently available devices that support its type. Returns | |
2574 | * %-EBUSY if a ULD of the same type is already registered. | |
2575 | */ | |
2576 | int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p) | |
2577 | { | |
2578 | int ret = 0; | |
2579 | struct adapter *adap; | |
2580 | ||
2581 | if (type >= CXGB4_ULD_MAX) | |
2582 | return -EINVAL; | |
2583 | mutex_lock(&uld_mutex); | |
2584 | if (ulds[type].add) { | |
2585 | ret = -EBUSY; | |
2586 | goto out; | |
2587 | } | |
2588 | ulds[type] = *p; | |
2589 | list_for_each_entry(adap, &adapter_list, list_node) | |
2590 | uld_attach(adap, type); | |
2591 | out: mutex_unlock(&uld_mutex); | |
2592 | return ret; | |
2593 | } | |
2594 | EXPORT_SYMBOL(cxgb4_register_uld); | |
2595 | ||
2596 | /** | |
2597 | * cxgb4_unregister_uld - unregister an upper-layer driver | |
2598 | * @type: the ULD type | |
2599 | * | |
2600 | * Unregisters an existing upper-layer driver. | |
2601 | */ | |
2602 | int cxgb4_unregister_uld(enum cxgb4_uld type) | |
2603 | { | |
2604 | struct adapter *adap; | |
2605 | ||
2606 | if (type >= CXGB4_ULD_MAX) | |
2607 | return -EINVAL; | |
2608 | mutex_lock(&uld_mutex); | |
2609 | list_for_each_entry(adap, &adapter_list, list_node) | |
2610 | adap->uld_handle[type] = NULL; | |
2611 | ulds[type].add = NULL; | |
2612 | mutex_unlock(&uld_mutex); | |
2613 | return 0; | |
2614 | } | |
2615 | EXPORT_SYMBOL(cxgb4_unregister_uld); | |
2616 | ||
2617 | /** | |
2618 | * cxgb_up - enable the adapter | |
2619 | * @adap: adapter being enabled | |
2620 | * | |
2621 | * Called when the first port is enabled, this function performs the | |
2622 | * actions necessary to make an adapter operational, such as completing | |
2623 | * the initialization of HW modules, and enabling interrupts. | |
2624 | * | |
2625 | * Must be called with the rtnl lock held. | |
2626 | */ | |
2627 | static int cxgb_up(struct adapter *adap) | |
2628 | { | |
aaefae9b | 2629 | int err; |
b8ff05a9 | 2630 | |
aaefae9b DM |
2631 | err = setup_sge_queues(adap); |
2632 | if (err) | |
2633 | goto out; | |
2634 | err = setup_rss(adap); | |
2635 | if (err) | |
2636 | goto freeq; | |
b8ff05a9 DM |
2637 | |
2638 | if (adap->flags & USING_MSIX) { | |
aaefae9b | 2639 | name_msix_vecs(adap); |
b8ff05a9 DM |
2640 | err = request_irq(adap->msix_info[0].vec, t4_nondata_intr, 0, |
2641 | adap->msix_info[0].desc, adap); | |
2642 | if (err) | |
2643 | goto irq_err; | |
2644 | ||
2645 | err = request_msix_queue_irqs(adap); | |
2646 | if (err) { | |
2647 | free_irq(adap->msix_info[0].vec, adap); | |
2648 | goto irq_err; | |
2649 | } | |
2650 | } else { | |
2651 | err = request_irq(adap->pdev->irq, t4_intr_handler(adap), | |
2652 | (adap->flags & USING_MSI) ? 0 : IRQF_SHARED, | |
2653 | adap->name, adap); | |
2654 | if (err) | |
2655 | goto irq_err; | |
2656 | } | |
2657 | enable_rx(adap); | |
2658 | t4_sge_start(adap); | |
2659 | t4_intr_enable(adap); | |
aaefae9b | 2660 | adap->flags |= FULL_INIT_DONE; |
b8ff05a9 DM |
2661 | notify_ulds(adap, CXGB4_STATE_UP); |
2662 | out: | |
2663 | return err; | |
2664 | irq_err: | |
2665 | dev_err(adap->pdev_dev, "request_irq failed, err %d\n", err); | |
aaefae9b DM |
2666 | freeq: |
2667 | t4_free_sge_resources(adap); | |
b8ff05a9 DM |
2668 | goto out; |
2669 | } | |
2670 | ||
2671 | static void cxgb_down(struct adapter *adapter) | |
2672 | { | |
2673 | t4_intr_disable(adapter); | |
2674 | cancel_work_sync(&adapter->tid_release_task); | |
2675 | adapter->tid_release_task_busy = false; | |
204dc3c0 | 2676 | adapter->tid_release_head = NULL; |
b8ff05a9 DM |
2677 | |
2678 | if (adapter->flags & USING_MSIX) { | |
2679 | free_msix_queue_irqs(adapter); | |
2680 | free_irq(adapter->msix_info[0].vec, adapter); | |
2681 | } else | |
2682 | free_irq(adapter->pdev->irq, adapter); | |
2683 | quiesce_rx(adapter); | |
aaefae9b DM |
2684 | t4_sge_stop(adapter); |
2685 | t4_free_sge_resources(adapter); | |
2686 | adapter->flags &= ~FULL_INIT_DONE; | |
b8ff05a9 DM |
2687 | } |
2688 | ||
2689 | /* | |
2690 | * net_device operations | |
2691 | */ | |
2692 | static int cxgb_open(struct net_device *dev) | |
2693 | { | |
2694 | int err; | |
2695 | struct port_info *pi = netdev_priv(dev); | |
2696 | struct adapter *adapter = pi->adapter; | |
2697 | ||
aaefae9b DM |
2698 | if (!(adapter->flags & FULL_INIT_DONE)) { |
2699 | err = cxgb_up(adapter); | |
2700 | if (err < 0) | |
2701 | return err; | |
2702 | } | |
b8ff05a9 DM |
2703 | |
2704 | dev->real_num_tx_queues = pi->nqsets; | |
f68707b8 DM |
2705 | err = link_start(dev); |
2706 | if (!err) | |
2707 | netif_tx_start_all_queues(dev); | |
2708 | return err; | |
b8ff05a9 DM |
2709 | } |
2710 | ||
2711 | static int cxgb_close(struct net_device *dev) | |
2712 | { | |
b8ff05a9 DM |
2713 | struct port_info *pi = netdev_priv(dev); |
2714 | struct adapter *adapter = pi->adapter; | |
2715 | ||
2716 | netif_tx_stop_all_queues(dev); | |
2717 | netif_carrier_off(dev); | |
aaefae9b | 2718 | return t4_enable_vi(adapter, 0, pi->viid, false, false); |
b8ff05a9 DM |
2719 | } |
2720 | ||
f5152c90 DM |
2721 | static struct rtnl_link_stats64 *cxgb_get_stats(struct net_device *dev, |
2722 | struct rtnl_link_stats64 *ns) | |
b8ff05a9 DM |
2723 | { |
2724 | struct port_stats stats; | |
2725 | struct port_info *p = netdev_priv(dev); | |
2726 | struct adapter *adapter = p->adapter; | |
b8ff05a9 DM |
2727 | |
2728 | spin_lock(&adapter->stats_lock); | |
2729 | t4_get_port_stats(adapter, p->tx_chan, &stats); | |
2730 | spin_unlock(&adapter->stats_lock); | |
2731 | ||
2732 | ns->tx_bytes = stats.tx_octets; | |
2733 | ns->tx_packets = stats.tx_frames; | |
2734 | ns->rx_bytes = stats.rx_octets; | |
2735 | ns->rx_packets = stats.rx_frames; | |
2736 | ns->multicast = stats.rx_mcast_frames; | |
2737 | ||
2738 | /* detailed rx_errors */ | |
2739 | ns->rx_length_errors = stats.rx_jabber + stats.rx_too_long + | |
2740 | stats.rx_runt; | |
2741 | ns->rx_over_errors = 0; | |
2742 | ns->rx_crc_errors = stats.rx_fcs_err; | |
2743 | ns->rx_frame_errors = stats.rx_symbol_err; | |
2744 | ns->rx_fifo_errors = stats.rx_ovflow0 + stats.rx_ovflow1 + | |
2745 | stats.rx_ovflow2 + stats.rx_ovflow3 + | |
2746 | stats.rx_trunc0 + stats.rx_trunc1 + | |
2747 | stats.rx_trunc2 + stats.rx_trunc3; | |
2748 | ns->rx_missed_errors = 0; | |
2749 | ||
2750 | /* detailed tx_errors */ | |
2751 | ns->tx_aborted_errors = 0; | |
2752 | ns->tx_carrier_errors = 0; | |
2753 | ns->tx_fifo_errors = 0; | |
2754 | ns->tx_heartbeat_errors = 0; | |
2755 | ns->tx_window_errors = 0; | |
2756 | ||
2757 | ns->tx_errors = stats.tx_error_frames; | |
2758 | ns->rx_errors = stats.rx_symbol_err + stats.rx_fcs_err + | |
2759 | ns->rx_length_errors + stats.rx_len_err + ns->rx_fifo_errors; | |
2760 | return ns; | |
2761 | } | |
2762 | ||
2763 | static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd) | |
2764 | { | |
2765 | int ret = 0, prtad, devad; | |
2766 | struct port_info *pi = netdev_priv(dev); | |
2767 | struct mii_ioctl_data *data = (struct mii_ioctl_data *)&req->ifr_data; | |
2768 | ||
2769 | switch (cmd) { | |
2770 | case SIOCGMIIPHY: | |
2771 | if (pi->mdio_addr < 0) | |
2772 | return -EOPNOTSUPP; | |
2773 | data->phy_id = pi->mdio_addr; | |
2774 | break; | |
2775 | case SIOCGMIIREG: | |
2776 | case SIOCSMIIREG: | |
2777 | if (mdio_phy_id_is_c45(data->phy_id)) { | |
2778 | prtad = mdio_phy_id_prtad(data->phy_id); | |
2779 | devad = mdio_phy_id_devad(data->phy_id); | |
2780 | } else if (data->phy_id < 32) { | |
2781 | prtad = data->phy_id; | |
2782 | devad = 0; | |
2783 | data->reg_num &= 0x1f; | |
2784 | } else | |
2785 | return -EINVAL; | |
2786 | ||
2787 | if (cmd == SIOCGMIIREG) | |
2788 | ret = t4_mdio_rd(pi->adapter, 0, prtad, devad, | |
2789 | data->reg_num, &data->val_out); | |
2790 | else | |
2791 | ret = t4_mdio_wr(pi->adapter, 0, prtad, devad, | |
2792 | data->reg_num, data->val_in); | |
2793 | break; | |
2794 | default: | |
2795 | return -EOPNOTSUPP; | |
2796 | } | |
2797 | return ret; | |
2798 | } | |
2799 | ||
2800 | static void cxgb_set_rxmode(struct net_device *dev) | |
2801 | { | |
2802 | /* unfortunately we can't return errors to the stack */ | |
2803 | set_rxmode(dev, -1, false); | |
2804 | } | |
2805 | ||
2806 | static int cxgb_change_mtu(struct net_device *dev, int new_mtu) | |
2807 | { | |
2808 | int ret; | |
2809 | struct port_info *pi = netdev_priv(dev); | |
2810 | ||
2811 | if (new_mtu < 81 || new_mtu > MAX_MTU) /* accommodate SACK */ | |
2812 | return -EINVAL; | |
f8f5aafa | 2813 | ret = t4_set_rxmode(pi->adapter, 0, pi->viid, new_mtu, -1, -1, -1, -1, |
b8ff05a9 DM |
2814 | true); |
2815 | if (!ret) | |
2816 | dev->mtu = new_mtu; | |
2817 | return ret; | |
2818 | } | |
2819 | ||
2820 | static int cxgb_set_mac_addr(struct net_device *dev, void *p) | |
2821 | { | |
2822 | int ret; | |
2823 | struct sockaddr *addr = p; | |
2824 | struct port_info *pi = netdev_priv(dev); | |
2825 | ||
2826 | if (!is_valid_ether_addr(addr->sa_data)) | |
2827 | return -EINVAL; | |
2828 | ||
2829 | ret = t4_change_mac(pi->adapter, 0, pi->viid, pi->xact_addr_filt, | |
2830 | addr->sa_data, true, true); | |
2831 | if (ret < 0) | |
2832 | return ret; | |
2833 | ||
2834 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
2835 | pi->xact_addr_filt = ret; | |
2836 | return 0; | |
2837 | } | |
2838 | ||
2839 | static void vlan_rx_register(struct net_device *dev, struct vlan_group *grp) | |
2840 | { | |
2841 | struct port_info *pi = netdev_priv(dev); | |
2842 | ||
2843 | pi->vlan_grp = grp; | |
f8f5aafa DM |
2844 | t4_set_rxmode(pi->adapter, 0, pi->viid, -1, -1, -1, -1, grp != NULL, |
2845 | true); | |
b8ff05a9 DM |
2846 | } |
2847 | ||
2848 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2849 | static void cxgb_netpoll(struct net_device *dev) | |
2850 | { | |
2851 | struct port_info *pi = netdev_priv(dev); | |
2852 | struct adapter *adap = pi->adapter; | |
2853 | ||
2854 | if (adap->flags & USING_MSIX) { | |
2855 | int i; | |
2856 | struct sge_eth_rxq *rx = &adap->sge.ethrxq[pi->first_qset]; | |
2857 | ||
2858 | for (i = pi->nqsets; i; i--, rx++) | |
2859 | t4_sge_intr_msix(0, &rx->rspq); | |
2860 | } else | |
2861 | t4_intr_handler(adap)(0, adap); | |
2862 | } | |
2863 | #endif | |
2864 | ||
2865 | static const struct net_device_ops cxgb4_netdev_ops = { | |
2866 | .ndo_open = cxgb_open, | |
2867 | .ndo_stop = cxgb_close, | |
2868 | .ndo_start_xmit = t4_eth_xmit, | |
9be793bf | 2869 | .ndo_get_stats64 = cxgb_get_stats, |
b8ff05a9 DM |
2870 | .ndo_set_rx_mode = cxgb_set_rxmode, |
2871 | .ndo_set_mac_address = cxgb_set_mac_addr, | |
2872 | .ndo_validate_addr = eth_validate_addr, | |
2873 | .ndo_do_ioctl = cxgb_ioctl, | |
2874 | .ndo_change_mtu = cxgb_change_mtu, | |
2875 | .ndo_vlan_rx_register = vlan_rx_register, | |
2876 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2877 | .ndo_poll_controller = cxgb_netpoll, | |
2878 | #endif | |
2879 | }; | |
2880 | ||
2881 | void t4_fatal_err(struct adapter *adap) | |
2882 | { | |
2883 | t4_set_reg_field(adap, SGE_CONTROL, GLOBALENABLE, 0); | |
2884 | t4_intr_disable(adap); | |
2885 | dev_alert(adap->pdev_dev, "encountered fatal error, adapter stopped\n"); | |
2886 | } | |
2887 | ||
2888 | static void setup_memwin(struct adapter *adap) | |
2889 | { | |
2890 | u32 bar0; | |
2891 | ||
2892 | bar0 = pci_resource_start(adap->pdev, 0); /* truncation intentional */ | |
2893 | t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 0), | |
2894 | (bar0 + MEMWIN0_BASE) | BIR(0) | | |
2895 | WINDOW(ilog2(MEMWIN0_APERTURE) - 10)); | |
2896 | t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 1), | |
2897 | (bar0 + MEMWIN1_BASE) | BIR(0) | | |
2898 | WINDOW(ilog2(MEMWIN1_APERTURE) - 10)); | |
2899 | t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2), | |
2900 | (bar0 + MEMWIN2_BASE) | BIR(0) | | |
2901 | WINDOW(ilog2(MEMWIN2_APERTURE) - 10)); | |
1ae970e0 DM |
2902 | if (adap->vres.ocq.size) { |
2903 | unsigned int start, sz_kb; | |
2904 | ||
2905 | start = pci_resource_start(adap->pdev, 2) + | |
2906 | OCQ_WIN_OFFSET(adap->pdev, &adap->vres); | |
2907 | sz_kb = roundup_pow_of_two(adap->vres.ocq.size) >> 10; | |
2908 | t4_write_reg(adap, | |
2909 | PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 3), | |
2910 | start | BIR(1) | WINDOW(ilog2(sz_kb))); | |
2911 | t4_write_reg(adap, | |
2912 | PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3), | |
2913 | adap->vres.ocq.start); | |
2914 | t4_read_reg(adap, | |
2915 | PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3)); | |
2916 | } | |
b8ff05a9 DM |
2917 | } |
2918 | ||
02b5fb8e DM |
2919 | static int adap_init1(struct adapter *adap, struct fw_caps_config_cmd *c) |
2920 | { | |
2921 | u32 v; | |
2922 | int ret; | |
2923 | ||
2924 | /* get device capabilities */ | |
2925 | memset(c, 0, sizeof(*c)); | |
2926 | c->op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
2927 | FW_CMD_REQUEST | FW_CMD_READ); | |
2928 | c->retval_len16 = htonl(FW_LEN16(*c)); | |
2929 | ret = t4_wr_mbox(adap, 0, c, sizeof(*c), c); | |
2930 | if (ret < 0) | |
2931 | return ret; | |
2932 | ||
2933 | /* select capabilities we'll be using */ | |
2934 | if (c->niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) { | |
2935 | if (!vf_acls) | |
2936 | c->niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM); | |
2937 | else | |
2938 | c->niccaps = htons(FW_CAPS_CONFIG_NIC_VM); | |
2939 | } else if (vf_acls) { | |
2940 | dev_err(adap->pdev_dev, "virtualization ACLs not supported"); | |
2941 | return ret; | |
2942 | } | |
2943 | c->op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
2944 | FW_CMD_REQUEST | FW_CMD_WRITE); | |
2945 | ret = t4_wr_mbox(adap, 0, c, sizeof(*c), NULL); | |
2946 | if (ret < 0) | |
2947 | return ret; | |
2948 | ||
2949 | ret = t4_config_glbl_rss(adap, 0, | |
2950 | FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL, | |
2951 | FW_RSS_GLB_CONFIG_CMD_TNLMAPEN | | |
2952 | FW_RSS_GLB_CONFIG_CMD_TNLALLLKP); | |
2953 | if (ret < 0) | |
2954 | return ret; | |
2955 | ||
20c0da65 DM |
2956 | ret = t4_cfg_pfvf(adap, 0, 0, 0, MAX_EGRQ, 64, MAX_INGQ, 0, 0, 4, |
2957 | 0xf, 0xf, 16, FW_CMD_CAP_PF, FW_CMD_CAP_PF); | |
02b5fb8e DM |
2958 | if (ret < 0) |
2959 | return ret; | |
2960 | ||
2961 | t4_sge_init(adap); | |
2962 | ||
2963 | /* get basic stuff going */ | |
2964 | ret = t4_early_init(adap, 0); | |
2965 | if (ret < 0) | |
2966 | return ret; | |
2967 | ||
2968 | /* tweak some settings */ | |
2969 | t4_write_reg(adap, TP_SHIFT_CNT, 0x64f8849); | |
2970 | t4_write_reg(adap, ULP_RX_TDDP_PSZ, HPZ0(PAGE_SHIFT - 12)); | |
2971 | t4_write_reg(adap, TP_PIO_ADDR, TP_INGRESS_CONFIG); | |
2972 | v = t4_read_reg(adap, TP_PIO_DATA); | |
2973 | t4_write_reg(adap, TP_PIO_DATA, v & ~CSUM_HAS_PSEUDO_HDR); | |
02b5fb8e DM |
2974 | return 0; |
2975 | } | |
2976 | ||
b8ff05a9 DM |
2977 | /* |
2978 | * Max # of ATIDs. The absolute HW max is 16K but we keep it lower. | |
2979 | */ | |
2980 | #define MAX_ATIDS 8192U | |
2981 | ||
2982 | /* | |
2983 | * Phase 0 of initialization: contact FW, obtain config, perform basic init. | |
2984 | */ | |
2985 | static int adap_init0(struct adapter *adap) | |
2986 | { | |
2987 | int ret; | |
2988 | u32 v, port_vec; | |
2989 | enum dev_state state; | |
2990 | u32 params[7], val[7]; | |
2991 | struct fw_caps_config_cmd c; | |
2992 | ||
2993 | ret = t4_check_fw_version(adap); | |
2994 | if (ret == -EINVAL || ret > 0) { | |
2995 | if (upgrade_fw(adap) >= 0) /* recache FW version */ | |
2996 | ret = t4_check_fw_version(adap); | |
2997 | } | |
2998 | if (ret < 0) | |
2999 | return ret; | |
3000 | ||
3001 | /* contact FW, request master */ | |
3002 | ret = t4_fw_hello(adap, 0, 0, MASTER_MUST, &state); | |
3003 | if (ret < 0) { | |
3004 | dev_err(adap->pdev_dev, "could not connect to FW, error %d\n", | |
3005 | ret); | |
3006 | return ret; | |
3007 | } | |
3008 | ||
3009 | /* reset device */ | |
3010 | ret = t4_fw_reset(adap, 0, PIORSTMODE | PIORST); | |
3011 | if (ret < 0) | |
3012 | goto bye; | |
3013 | ||
b8ff05a9 DM |
3014 | for (v = 0; v < SGE_NTIMERS - 1; v++) |
3015 | adap->sge.timer_val[v] = min(intr_holdoff[v], MAX_SGE_TIMERVAL); | |
3016 | adap->sge.timer_val[SGE_NTIMERS - 1] = MAX_SGE_TIMERVAL; | |
3017 | adap->sge.counter_val[0] = 1; | |
3018 | for (v = 1; v < SGE_NCOUNTERS; v++) | |
3019 | adap->sge.counter_val[v] = min(intr_cnt[v - 1], | |
3020 | THRESHOLD_3_MASK); | |
b8ff05a9 DM |
3021 | #define FW_PARAM_DEV(param) \ |
3022 | (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \ | |
3023 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param)) | |
3024 | ||
a0881cab DM |
3025 | params[0] = FW_PARAM_DEV(CCLK); |
3026 | ret = t4_query_params(adap, 0, 0, 0, 1, params, val); | |
3027 | if (ret < 0) | |
3028 | goto bye; | |
3029 | adap->params.vpd.cclk = val[0]; | |
3030 | ||
3031 | ret = adap_init1(adap, &c); | |
3032 | if (ret < 0) | |
3033 | goto bye; | |
3034 | ||
b8ff05a9 DM |
3035 | #define FW_PARAM_PFVF(param) \ |
3036 | (FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \ | |
3037 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param)) | |
3038 | ||
3039 | params[0] = FW_PARAM_DEV(PORTVEC); | |
3040 | params[1] = FW_PARAM_PFVF(L2T_START); | |
3041 | params[2] = FW_PARAM_PFVF(L2T_END); | |
3042 | params[3] = FW_PARAM_PFVF(FILTER_START); | |
3043 | params[4] = FW_PARAM_PFVF(FILTER_END); | |
3044 | ret = t4_query_params(adap, 0, 0, 0, 5, params, val); | |
3045 | if (ret < 0) | |
3046 | goto bye; | |
3047 | port_vec = val[0]; | |
3048 | adap->tids.ftid_base = val[3]; | |
3049 | adap->tids.nftids = val[4] - val[3] + 1; | |
3050 | ||
3051 | if (c.ofldcaps) { | |
3052 | /* query offload-related parameters */ | |
3053 | params[0] = FW_PARAM_DEV(NTID); | |
3054 | params[1] = FW_PARAM_PFVF(SERVER_START); | |
3055 | params[2] = FW_PARAM_PFVF(SERVER_END); | |
3056 | params[3] = FW_PARAM_PFVF(TDDP_START); | |
3057 | params[4] = FW_PARAM_PFVF(TDDP_END); | |
3058 | params[5] = FW_PARAM_DEV(FLOWC_BUFFIFO_SZ); | |
3059 | ret = t4_query_params(adap, 0, 0, 0, 6, params, val); | |
3060 | if (ret < 0) | |
3061 | goto bye; | |
3062 | adap->tids.ntids = val[0]; | |
3063 | adap->tids.natids = min(adap->tids.ntids / 2, MAX_ATIDS); | |
3064 | adap->tids.stid_base = val[1]; | |
3065 | adap->tids.nstids = val[2] - val[1] + 1; | |
3066 | adap->vres.ddp.start = val[3]; | |
3067 | adap->vres.ddp.size = val[4] - val[3] + 1; | |
3068 | adap->params.ofldq_wr_cred = val[5]; | |
3069 | adap->params.offload = 1; | |
3070 | } | |
3071 | if (c.rdmacaps) { | |
3072 | params[0] = FW_PARAM_PFVF(STAG_START); | |
3073 | params[1] = FW_PARAM_PFVF(STAG_END); | |
3074 | params[2] = FW_PARAM_PFVF(RQ_START); | |
3075 | params[3] = FW_PARAM_PFVF(RQ_END); | |
3076 | params[4] = FW_PARAM_PFVF(PBL_START); | |
3077 | params[5] = FW_PARAM_PFVF(PBL_END); | |
3078 | ret = t4_query_params(adap, 0, 0, 0, 6, params, val); | |
3079 | if (ret < 0) | |
3080 | goto bye; | |
3081 | adap->vres.stag.start = val[0]; | |
3082 | adap->vres.stag.size = val[1] - val[0] + 1; | |
3083 | adap->vres.rq.start = val[2]; | |
3084 | adap->vres.rq.size = val[3] - val[2] + 1; | |
3085 | adap->vres.pbl.start = val[4]; | |
3086 | adap->vres.pbl.size = val[5] - val[4] + 1; | |
a0881cab DM |
3087 | |
3088 | params[0] = FW_PARAM_PFVF(SQRQ_START); | |
3089 | params[1] = FW_PARAM_PFVF(SQRQ_END); | |
3090 | params[2] = FW_PARAM_PFVF(CQ_START); | |
3091 | params[3] = FW_PARAM_PFVF(CQ_END); | |
1ae970e0 DM |
3092 | params[4] = FW_PARAM_PFVF(OCQ_START); |
3093 | params[5] = FW_PARAM_PFVF(OCQ_END); | |
3094 | ret = t4_query_params(adap, 0, 0, 0, 6, params, val); | |
a0881cab DM |
3095 | if (ret < 0) |
3096 | goto bye; | |
3097 | adap->vres.qp.start = val[0]; | |
3098 | adap->vres.qp.size = val[1] - val[0] + 1; | |
3099 | adap->vres.cq.start = val[2]; | |
3100 | adap->vres.cq.size = val[3] - val[2] + 1; | |
1ae970e0 DM |
3101 | adap->vres.ocq.start = val[4]; |
3102 | adap->vres.ocq.size = val[5] - val[4] + 1; | |
b8ff05a9 DM |
3103 | } |
3104 | if (c.iscsicaps) { | |
3105 | params[0] = FW_PARAM_PFVF(ISCSI_START); | |
3106 | params[1] = FW_PARAM_PFVF(ISCSI_END); | |
3107 | ret = t4_query_params(adap, 0, 0, 0, 2, params, val); | |
3108 | if (ret < 0) | |
3109 | goto bye; | |
3110 | adap->vres.iscsi.start = val[0]; | |
3111 | adap->vres.iscsi.size = val[1] - val[0] + 1; | |
3112 | } | |
3113 | #undef FW_PARAM_PFVF | |
3114 | #undef FW_PARAM_DEV | |
3115 | ||
3116 | adap->params.nports = hweight32(port_vec); | |
3117 | adap->params.portvec = port_vec; | |
3118 | adap->flags |= FW_OK; | |
3119 | ||
3120 | /* These are finalized by FW initialization, load their values now */ | |
3121 | v = t4_read_reg(adap, TP_TIMER_RESOLUTION); | |
3122 | adap->params.tp.tre = TIMERRESOLUTION_GET(v); | |
3123 | t4_read_mtu_tbl(adap, adap->params.mtus, NULL); | |
3124 | t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, | |
3125 | adap->params.b_wnd); | |
7ee9ff94 CL |
3126 | |
3127 | #ifdef CONFIG_PCI_IOV | |
3128 | /* | |
3129 | * Provision resource limits for Virtual Functions. We currently | |
3130 | * grant them all the same static resource limits except for the Port | |
3131 | * Access Rights Mask which we're assigning based on the PF. All of | |
3132 | * the static provisioning stuff for both the PF and VF really needs | |
3133 | * to be managed in a persistent manner for each device which the | |
3134 | * firmware controls. | |
3135 | */ | |
3136 | { | |
3137 | int pf, vf; | |
3138 | ||
3139 | for (pf = 0; pf < ARRAY_SIZE(num_vf); pf++) { | |
3140 | if (num_vf[pf] <= 0) | |
3141 | continue; | |
3142 | ||
3143 | /* VF numbering starts at 1! */ | |
3144 | for (vf = 1; vf <= num_vf[pf]; vf++) { | |
3145 | ret = t4_cfg_pfvf(adap, 0, pf, vf, | |
3146 | VFRES_NEQ, VFRES_NETHCTRL, | |
3147 | VFRES_NIQFLINT, VFRES_NIQ, | |
3148 | VFRES_TC, VFRES_NVI, | |
3149 | FW_PFVF_CMD_CMASK_MASK, | |
3150 | pfvfres_pmask(adap, pf, vf), | |
3151 | VFRES_NEXACTF, | |
3152 | VFRES_R_CAPS, VFRES_WX_CAPS); | |
3153 | if (ret < 0) | |
3154 | dev_warn(adap->pdev_dev, "failed to " | |
3155 | "provision pf/vf=%d/%d; " | |
3156 | "err=%d\n", pf, vf, ret); | |
3157 | } | |
3158 | } | |
3159 | } | |
3160 | #endif | |
3161 | ||
1ae970e0 | 3162 | setup_memwin(adap); |
b8ff05a9 DM |
3163 | return 0; |
3164 | ||
3165 | /* | |
3166 | * If a command timed out or failed with EIO FW does not operate within | |
3167 | * its spec or something catastrophic happened to HW/FW, stop issuing | |
3168 | * commands. | |
3169 | */ | |
3170 | bye: if (ret != -ETIMEDOUT && ret != -EIO) | |
3171 | t4_fw_bye(adap, 0); | |
3172 | return ret; | |
3173 | } | |
3174 | ||
204dc3c0 DM |
3175 | /* EEH callbacks */ |
3176 | ||
3177 | static pci_ers_result_t eeh_err_detected(struct pci_dev *pdev, | |
3178 | pci_channel_state_t state) | |
3179 | { | |
3180 | int i; | |
3181 | struct adapter *adap = pci_get_drvdata(pdev); | |
3182 | ||
3183 | if (!adap) | |
3184 | goto out; | |
3185 | ||
3186 | rtnl_lock(); | |
3187 | adap->flags &= ~FW_OK; | |
3188 | notify_ulds(adap, CXGB4_STATE_START_RECOVERY); | |
3189 | for_each_port(adap, i) { | |
3190 | struct net_device *dev = adap->port[i]; | |
3191 | ||
3192 | netif_device_detach(dev); | |
3193 | netif_carrier_off(dev); | |
3194 | } | |
3195 | if (adap->flags & FULL_INIT_DONE) | |
3196 | cxgb_down(adap); | |
3197 | rtnl_unlock(); | |
3198 | pci_disable_device(pdev); | |
3199 | out: return state == pci_channel_io_perm_failure ? | |
3200 | PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET; | |
3201 | } | |
3202 | ||
3203 | static pci_ers_result_t eeh_slot_reset(struct pci_dev *pdev) | |
3204 | { | |
3205 | int i, ret; | |
3206 | struct fw_caps_config_cmd c; | |
3207 | struct adapter *adap = pci_get_drvdata(pdev); | |
3208 | ||
3209 | if (!adap) { | |
3210 | pci_restore_state(pdev); | |
3211 | pci_save_state(pdev); | |
3212 | return PCI_ERS_RESULT_RECOVERED; | |
3213 | } | |
3214 | ||
3215 | if (pci_enable_device(pdev)) { | |
3216 | dev_err(&pdev->dev, "cannot reenable PCI device after reset\n"); | |
3217 | return PCI_ERS_RESULT_DISCONNECT; | |
3218 | } | |
3219 | ||
3220 | pci_set_master(pdev); | |
3221 | pci_restore_state(pdev); | |
3222 | pci_save_state(pdev); | |
3223 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
3224 | ||
3225 | if (t4_wait_dev_ready(adap) < 0) | |
3226 | return PCI_ERS_RESULT_DISCONNECT; | |
3227 | if (t4_fw_hello(adap, 0, 0, MASTER_MUST, NULL)) | |
3228 | return PCI_ERS_RESULT_DISCONNECT; | |
3229 | adap->flags |= FW_OK; | |
3230 | if (adap_init1(adap, &c)) | |
3231 | return PCI_ERS_RESULT_DISCONNECT; | |
3232 | ||
3233 | for_each_port(adap, i) { | |
3234 | struct port_info *p = adap2pinfo(adap, i); | |
3235 | ||
3236 | ret = t4_alloc_vi(adap, 0, p->tx_chan, 0, 0, 1, NULL, NULL); | |
3237 | if (ret < 0) | |
3238 | return PCI_ERS_RESULT_DISCONNECT; | |
3239 | p->viid = ret; | |
3240 | p->xact_addr_filt = -1; | |
3241 | } | |
3242 | ||
3243 | t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, | |
3244 | adap->params.b_wnd); | |
1ae970e0 | 3245 | setup_memwin(adap); |
204dc3c0 DM |
3246 | if (cxgb_up(adap)) |
3247 | return PCI_ERS_RESULT_DISCONNECT; | |
3248 | return PCI_ERS_RESULT_RECOVERED; | |
3249 | } | |
3250 | ||
3251 | static void eeh_resume(struct pci_dev *pdev) | |
3252 | { | |
3253 | int i; | |
3254 | struct adapter *adap = pci_get_drvdata(pdev); | |
3255 | ||
3256 | if (!adap) | |
3257 | return; | |
3258 | ||
3259 | rtnl_lock(); | |
3260 | for_each_port(adap, i) { | |
3261 | struct net_device *dev = adap->port[i]; | |
3262 | ||
3263 | if (netif_running(dev)) { | |
3264 | link_start(dev); | |
3265 | cxgb_set_rxmode(dev); | |
3266 | } | |
3267 | netif_device_attach(dev); | |
3268 | } | |
3269 | rtnl_unlock(); | |
3270 | } | |
3271 | ||
3272 | static struct pci_error_handlers cxgb4_eeh = { | |
3273 | .error_detected = eeh_err_detected, | |
3274 | .slot_reset = eeh_slot_reset, | |
3275 | .resume = eeh_resume, | |
3276 | }; | |
3277 | ||
b8ff05a9 DM |
3278 | static inline bool is_10g_port(const struct link_config *lc) |
3279 | { | |
3280 | return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0; | |
3281 | } | |
3282 | ||
3283 | static inline void init_rspq(struct sge_rspq *q, u8 timer_idx, u8 pkt_cnt_idx, | |
3284 | unsigned int size, unsigned int iqe_size) | |
3285 | { | |
3286 | q->intr_params = QINTR_TIMER_IDX(timer_idx) | | |
3287 | (pkt_cnt_idx < SGE_NCOUNTERS ? QINTR_CNT_EN : 0); | |
3288 | q->pktcnt_idx = pkt_cnt_idx < SGE_NCOUNTERS ? pkt_cnt_idx : 0; | |
3289 | q->iqe_len = iqe_size; | |
3290 | q->size = size; | |
3291 | } | |
3292 | ||
3293 | /* | |
3294 | * Perform default configuration of DMA queues depending on the number and type | |
3295 | * of ports we found and the number of available CPUs. Most settings can be | |
3296 | * modified by the admin prior to actual use. | |
3297 | */ | |
3298 | static void __devinit cfg_queues(struct adapter *adap) | |
3299 | { | |
3300 | struct sge *s = &adap->sge; | |
3301 | int i, q10g = 0, n10g = 0, qidx = 0; | |
3302 | ||
3303 | for_each_port(adap, i) | |
3304 | n10g += is_10g_port(&adap2pinfo(adap, i)->link_cfg); | |
3305 | ||
3306 | /* | |
3307 | * We default to 1 queue per non-10G port and up to # of cores queues | |
3308 | * per 10G port. | |
3309 | */ | |
3310 | if (n10g) | |
3311 | q10g = (MAX_ETH_QSETS - (adap->params.nports - n10g)) / n10g; | |
3312 | if (q10g > num_online_cpus()) | |
3313 | q10g = num_online_cpus(); | |
3314 | ||
3315 | for_each_port(adap, i) { | |
3316 | struct port_info *pi = adap2pinfo(adap, i); | |
3317 | ||
3318 | pi->first_qset = qidx; | |
3319 | pi->nqsets = is_10g_port(&pi->link_cfg) ? q10g : 1; | |
3320 | qidx += pi->nqsets; | |
3321 | } | |
3322 | ||
3323 | s->ethqsets = qidx; | |
3324 | s->max_ethqsets = qidx; /* MSI-X may lower it later */ | |
3325 | ||
3326 | if (is_offload(adap)) { | |
3327 | /* | |
3328 | * For offload we use 1 queue/channel if all ports are up to 1G, | |
3329 | * otherwise we divide all available queues amongst the channels | |
3330 | * capped by the number of available cores. | |
3331 | */ | |
3332 | if (n10g) { | |
3333 | i = min_t(int, ARRAY_SIZE(s->ofldrxq), | |
3334 | num_online_cpus()); | |
3335 | s->ofldqsets = roundup(i, adap->params.nports); | |
3336 | } else | |
3337 | s->ofldqsets = adap->params.nports; | |
3338 | /* For RDMA one Rx queue per channel suffices */ | |
3339 | s->rdmaqs = adap->params.nports; | |
3340 | } | |
3341 | ||
3342 | for (i = 0; i < ARRAY_SIZE(s->ethrxq); i++) { | |
3343 | struct sge_eth_rxq *r = &s->ethrxq[i]; | |
3344 | ||
3345 | init_rspq(&r->rspq, 0, 0, 1024, 64); | |
3346 | r->fl.size = 72; | |
3347 | } | |
3348 | ||
3349 | for (i = 0; i < ARRAY_SIZE(s->ethtxq); i++) | |
3350 | s->ethtxq[i].q.size = 1024; | |
3351 | ||
3352 | for (i = 0; i < ARRAY_SIZE(s->ctrlq); i++) | |
3353 | s->ctrlq[i].q.size = 512; | |
3354 | ||
3355 | for (i = 0; i < ARRAY_SIZE(s->ofldtxq); i++) | |
3356 | s->ofldtxq[i].q.size = 1024; | |
3357 | ||
3358 | for (i = 0; i < ARRAY_SIZE(s->ofldrxq); i++) { | |
3359 | struct sge_ofld_rxq *r = &s->ofldrxq[i]; | |
3360 | ||
3361 | init_rspq(&r->rspq, 0, 0, 1024, 64); | |
3362 | r->rspq.uld = CXGB4_ULD_ISCSI; | |
3363 | r->fl.size = 72; | |
3364 | } | |
3365 | ||
3366 | for (i = 0; i < ARRAY_SIZE(s->rdmarxq); i++) { | |
3367 | struct sge_ofld_rxq *r = &s->rdmarxq[i]; | |
3368 | ||
3369 | init_rspq(&r->rspq, 0, 0, 511, 64); | |
3370 | r->rspq.uld = CXGB4_ULD_RDMA; | |
3371 | r->fl.size = 72; | |
3372 | } | |
3373 | ||
3374 | init_rspq(&s->fw_evtq, 6, 0, 512, 64); | |
3375 | init_rspq(&s->intrq, 6, 0, 2 * MAX_INGQ, 64); | |
3376 | } | |
3377 | ||
3378 | /* | |
3379 | * Reduce the number of Ethernet queues across all ports to at most n. | |
3380 | * n provides at least one queue per port. | |
3381 | */ | |
3382 | static void __devinit reduce_ethqs(struct adapter *adap, int n) | |
3383 | { | |
3384 | int i; | |
3385 | struct port_info *pi; | |
3386 | ||
3387 | while (n < adap->sge.ethqsets) | |
3388 | for_each_port(adap, i) { | |
3389 | pi = adap2pinfo(adap, i); | |
3390 | if (pi->nqsets > 1) { | |
3391 | pi->nqsets--; | |
3392 | adap->sge.ethqsets--; | |
3393 | if (adap->sge.ethqsets <= n) | |
3394 | break; | |
3395 | } | |
3396 | } | |
3397 | ||
3398 | n = 0; | |
3399 | for_each_port(adap, i) { | |
3400 | pi = adap2pinfo(adap, i); | |
3401 | pi->first_qset = n; | |
3402 | n += pi->nqsets; | |
3403 | } | |
3404 | } | |
3405 | ||
3406 | /* 2 MSI-X vectors needed for the FW queue and non-data interrupts */ | |
3407 | #define EXTRA_VECS 2 | |
3408 | ||
3409 | static int __devinit enable_msix(struct adapter *adap) | |
3410 | { | |
3411 | int ofld_need = 0; | |
3412 | int i, err, want, need; | |
3413 | struct sge *s = &adap->sge; | |
3414 | unsigned int nchan = adap->params.nports; | |
3415 | struct msix_entry entries[MAX_INGQ + 1]; | |
3416 | ||
3417 | for (i = 0; i < ARRAY_SIZE(entries); ++i) | |
3418 | entries[i].entry = i; | |
3419 | ||
3420 | want = s->max_ethqsets + EXTRA_VECS; | |
3421 | if (is_offload(adap)) { | |
3422 | want += s->rdmaqs + s->ofldqsets; | |
3423 | /* need nchan for each possible ULD */ | |
3424 | ofld_need = 2 * nchan; | |
3425 | } | |
3426 | need = adap->params.nports + EXTRA_VECS + ofld_need; | |
3427 | ||
3428 | while ((err = pci_enable_msix(adap->pdev, entries, want)) >= need) | |
3429 | want = err; | |
3430 | ||
3431 | if (!err) { | |
3432 | /* | |
3433 | * Distribute available vectors to the various queue groups. | |
3434 | * Every group gets its minimum requirement and NIC gets top | |
3435 | * priority for leftovers. | |
3436 | */ | |
3437 | i = want - EXTRA_VECS - ofld_need; | |
3438 | if (i < s->max_ethqsets) { | |
3439 | s->max_ethqsets = i; | |
3440 | if (i < s->ethqsets) | |
3441 | reduce_ethqs(adap, i); | |
3442 | } | |
3443 | if (is_offload(adap)) { | |
3444 | i = want - EXTRA_VECS - s->max_ethqsets; | |
3445 | i -= ofld_need - nchan; | |
3446 | s->ofldqsets = (i / nchan) * nchan; /* round down */ | |
3447 | } | |
3448 | for (i = 0; i < want; ++i) | |
3449 | adap->msix_info[i].vec = entries[i].vector; | |
3450 | } else if (err > 0) | |
3451 | dev_info(adap->pdev_dev, | |
3452 | "only %d MSI-X vectors left, not using MSI-X\n", err); | |
3453 | return err; | |
3454 | } | |
3455 | ||
3456 | #undef EXTRA_VECS | |
3457 | ||
671b0060 DM |
3458 | static int __devinit init_rss(struct adapter *adap) |
3459 | { | |
3460 | unsigned int i, j; | |
3461 | ||
3462 | for_each_port(adap, i) { | |
3463 | struct port_info *pi = adap2pinfo(adap, i); | |
3464 | ||
3465 | pi->rss = kcalloc(pi->rss_size, sizeof(u16), GFP_KERNEL); | |
3466 | if (!pi->rss) | |
3467 | return -ENOMEM; | |
3468 | for (j = 0; j < pi->rss_size; j++) | |
3469 | pi->rss[j] = j % pi->nqsets; | |
3470 | } | |
3471 | return 0; | |
3472 | } | |
3473 | ||
b8ff05a9 DM |
3474 | static void __devinit print_port_info(struct adapter *adap) |
3475 | { | |
3476 | static const char *base[] = { | |
a0881cab DM |
3477 | "R XFI", "R XAUI", "T SGMII", "T XFI", "T XAUI", "KX4", "CX4", |
3478 | "KX", "KR", "KR SFP+", "KR FEC" | |
b8ff05a9 DM |
3479 | }; |
3480 | ||
3481 | int i; | |
3482 | char buf[80]; | |
f1a051b9 DM |
3483 | const char *spd = ""; |
3484 | ||
3485 | if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_2_5GB) | |
3486 | spd = " 2.5 GT/s"; | |
3487 | else if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_5_0GB) | |
3488 | spd = " 5 GT/s"; | |
b8ff05a9 DM |
3489 | |
3490 | for_each_port(adap, i) { | |
3491 | struct net_device *dev = adap->port[i]; | |
3492 | const struct port_info *pi = netdev_priv(dev); | |
3493 | char *bufp = buf; | |
3494 | ||
3495 | if (!test_bit(i, &adap->registered_device_map)) | |
3496 | continue; | |
3497 | ||
3498 | if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_100M) | |
3499 | bufp += sprintf(bufp, "100/"); | |
3500 | if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_1G) | |
3501 | bufp += sprintf(bufp, "1000/"); | |
3502 | if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_10G) | |
3503 | bufp += sprintf(bufp, "10G/"); | |
3504 | if (bufp != buf) | |
3505 | --bufp; | |
3506 | sprintf(bufp, "BASE-%s", base[pi->port_type]); | |
3507 | ||
f1a051b9 | 3508 | netdev_info(dev, "Chelsio %s rev %d %s %sNIC PCIe x%d%s%s\n", |
b8ff05a9 DM |
3509 | adap->params.vpd.id, adap->params.rev, |
3510 | buf, is_offload(adap) ? "R" : "", | |
f1a051b9 | 3511 | adap->params.pci.width, spd, |
b8ff05a9 DM |
3512 | (adap->flags & USING_MSIX) ? " MSI-X" : |
3513 | (adap->flags & USING_MSI) ? " MSI" : ""); | |
3514 | if (adap->name == dev->name) | |
3515 | netdev_info(dev, "S/N: %s, E/C: %s\n", | |
3516 | adap->params.vpd.sn, adap->params.vpd.ec); | |
3517 | } | |
3518 | } | |
3519 | ||
06546391 DM |
3520 | /* |
3521 | * Free the following resources: | |
3522 | * - memory used for tables | |
3523 | * - MSI/MSI-X | |
3524 | * - net devices | |
3525 | * - resources FW is holding for us | |
3526 | */ | |
3527 | static void free_some_resources(struct adapter *adapter) | |
3528 | { | |
3529 | unsigned int i; | |
3530 | ||
3531 | t4_free_mem(adapter->l2t); | |
3532 | t4_free_mem(adapter->tids.tid_tab); | |
3533 | disable_msi(adapter); | |
3534 | ||
3535 | for_each_port(adapter, i) | |
671b0060 DM |
3536 | if (adapter->port[i]) { |
3537 | kfree(adap2pinfo(adapter, i)->rss); | |
06546391 | 3538 | free_netdev(adapter->port[i]); |
671b0060 | 3539 | } |
06546391 DM |
3540 | if (adapter->flags & FW_OK) |
3541 | t4_fw_bye(adapter, 0); | |
3542 | } | |
3543 | ||
35d35682 | 3544 | #define VLAN_FEAT (NETIF_F_SG | NETIF_F_IP_CSUM | TSO_FLAGS | \ |
b8ff05a9 DM |
3545 | NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA) |
3546 | ||
3547 | static int __devinit init_one(struct pci_dev *pdev, | |
3548 | const struct pci_device_id *ent) | |
3549 | { | |
3550 | int func, i, err; | |
3551 | struct port_info *pi; | |
3552 | unsigned int highdma = 0; | |
3553 | struct adapter *adapter = NULL; | |
3554 | ||
3555 | printk_once(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION); | |
3556 | ||
3557 | err = pci_request_regions(pdev, KBUILD_MODNAME); | |
3558 | if (err) { | |
3559 | /* Just info, some other driver may have claimed the device. */ | |
3560 | dev_info(&pdev->dev, "cannot obtain PCI resources\n"); | |
3561 | return err; | |
3562 | } | |
3563 | ||
3564 | /* We control everything through PF 0 */ | |
3565 | func = PCI_FUNC(pdev->devfn); | |
204dc3c0 DM |
3566 | if (func > 0) { |
3567 | pci_save_state(pdev); /* to restore SR-IOV later */ | |
b8ff05a9 | 3568 | goto sriov; |
204dc3c0 | 3569 | } |
b8ff05a9 DM |
3570 | |
3571 | err = pci_enable_device(pdev); | |
3572 | if (err) { | |
3573 | dev_err(&pdev->dev, "cannot enable PCI device\n"); | |
3574 | goto out_release_regions; | |
3575 | } | |
3576 | ||
3577 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { | |
3578 | highdma = NETIF_F_HIGHDMA; | |
3579 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
3580 | if (err) { | |
3581 | dev_err(&pdev->dev, "unable to obtain 64-bit DMA for " | |
3582 | "coherent allocations\n"); | |
3583 | goto out_disable_device; | |
3584 | } | |
3585 | } else { | |
3586 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
3587 | if (err) { | |
3588 | dev_err(&pdev->dev, "no usable DMA configuration\n"); | |
3589 | goto out_disable_device; | |
3590 | } | |
3591 | } | |
3592 | ||
3593 | pci_enable_pcie_error_reporting(pdev); | |
3594 | pci_set_master(pdev); | |
3595 | pci_save_state(pdev); | |
3596 | ||
3597 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); | |
3598 | if (!adapter) { | |
3599 | err = -ENOMEM; | |
3600 | goto out_disable_device; | |
3601 | } | |
3602 | ||
3603 | adapter->regs = pci_ioremap_bar(pdev, 0); | |
3604 | if (!adapter->regs) { | |
3605 | dev_err(&pdev->dev, "cannot map device registers\n"); | |
3606 | err = -ENOMEM; | |
3607 | goto out_free_adapter; | |
3608 | } | |
3609 | ||
3610 | adapter->pdev = pdev; | |
3611 | adapter->pdev_dev = &pdev->dev; | |
3612 | adapter->name = pci_name(pdev); | |
3613 | adapter->msg_enable = dflt_msg_enable; | |
3614 | memset(adapter->chan_map, 0xff, sizeof(adapter->chan_map)); | |
3615 | ||
3616 | spin_lock_init(&adapter->stats_lock); | |
3617 | spin_lock_init(&adapter->tid_release_lock); | |
3618 | ||
3619 | INIT_WORK(&adapter->tid_release_task, process_tid_release_list); | |
3620 | ||
3621 | err = t4_prep_adapter(adapter); | |
3622 | if (err) | |
3623 | goto out_unmap_bar; | |
3624 | err = adap_init0(adapter); | |
3625 | if (err) | |
3626 | goto out_unmap_bar; | |
3627 | ||
3628 | for_each_port(adapter, i) { | |
3629 | struct net_device *netdev; | |
3630 | ||
3631 | netdev = alloc_etherdev_mq(sizeof(struct port_info), | |
3632 | MAX_ETH_QSETS); | |
3633 | if (!netdev) { | |
3634 | err = -ENOMEM; | |
3635 | goto out_free_dev; | |
3636 | } | |
3637 | ||
3638 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
3639 | ||
3640 | adapter->port[i] = netdev; | |
3641 | pi = netdev_priv(netdev); | |
3642 | pi->adapter = adapter; | |
3643 | pi->xact_addr_filt = -1; | |
3644 | pi->rx_offload = RX_CSO; | |
3645 | pi->port_id = i; | |
3646 | netif_carrier_off(netdev); | |
3647 | netif_tx_stop_all_queues(netdev); | |
3648 | netdev->irq = pdev->irq; | |
3649 | ||
35d35682 | 3650 | netdev->features |= NETIF_F_SG | TSO_FLAGS; |
b8ff05a9 | 3651 | netdev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
87b6cf51 | 3652 | netdev->features |= NETIF_F_GRO | NETIF_F_RXHASH | highdma; |
b8ff05a9 DM |
3653 | netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; |
3654 | netdev->vlan_features = netdev->features & VLAN_FEAT; | |
3655 | ||
3656 | netdev->netdev_ops = &cxgb4_netdev_ops; | |
3657 | SET_ETHTOOL_OPS(netdev, &cxgb_ethtool_ops); | |
3658 | } | |
3659 | ||
3660 | pci_set_drvdata(pdev, adapter); | |
3661 | ||
3662 | if (adapter->flags & FW_OK) { | |
3663 | err = t4_port_init(adapter, 0, 0, 0); | |
3664 | if (err) | |
3665 | goto out_free_dev; | |
3666 | } | |
3667 | ||
3668 | /* | |
3669 | * Configure queues and allocate tables now, they can be needed as | |
3670 | * soon as the first register_netdev completes. | |
3671 | */ | |
3672 | cfg_queues(adapter); | |
3673 | ||
3674 | adapter->l2t = t4_init_l2t(); | |
3675 | if (!adapter->l2t) { | |
3676 | /* We tolerate a lack of L2T, giving up some functionality */ | |
3677 | dev_warn(&pdev->dev, "could not allocate L2T, continuing\n"); | |
3678 | adapter->params.offload = 0; | |
3679 | } | |
3680 | ||
3681 | if (is_offload(adapter) && tid_init(&adapter->tids) < 0) { | |
3682 | dev_warn(&pdev->dev, "could not allocate TID table, " | |
3683 | "continuing\n"); | |
3684 | adapter->params.offload = 0; | |
3685 | } | |
3686 | ||
f7cabcdd DM |
3687 | /* See what interrupts we'll be using */ |
3688 | if (msi > 1 && enable_msix(adapter) == 0) | |
3689 | adapter->flags |= USING_MSIX; | |
3690 | else if (msi > 0 && pci_enable_msi(pdev) == 0) | |
3691 | adapter->flags |= USING_MSI; | |
3692 | ||
671b0060 DM |
3693 | err = init_rss(adapter); |
3694 | if (err) | |
3695 | goto out_free_dev; | |
3696 | ||
b8ff05a9 DM |
3697 | /* |
3698 | * The card is now ready to go. If any errors occur during device | |
3699 | * registration we do not fail the whole card but rather proceed only | |
3700 | * with the ports we manage to register successfully. However we must | |
3701 | * register at least one net device. | |
3702 | */ | |
3703 | for_each_port(adapter, i) { | |
3704 | err = register_netdev(adapter->port[i]); | |
3705 | if (err) | |
3706 | dev_warn(&pdev->dev, | |
3707 | "cannot register net device %s, skipping\n", | |
3708 | adapter->port[i]->name); | |
3709 | else { | |
3710 | /* | |
3711 | * Change the name we use for messages to the name of | |
3712 | * the first successfully registered interface. | |
3713 | */ | |
3714 | if (!adapter->registered_device_map) | |
3715 | adapter->name = adapter->port[i]->name; | |
3716 | ||
3717 | __set_bit(i, &adapter->registered_device_map); | |
3718 | adapter->chan_map[adap2pinfo(adapter, i)->tx_chan] = i; | |
3719 | } | |
3720 | } | |
3721 | if (!adapter->registered_device_map) { | |
3722 | dev_err(&pdev->dev, "could not register any net devices\n"); | |
3723 | goto out_free_dev; | |
3724 | } | |
3725 | ||
3726 | if (cxgb4_debugfs_root) { | |
3727 | adapter->debugfs_root = debugfs_create_dir(pci_name(pdev), | |
3728 | cxgb4_debugfs_root); | |
3729 | setup_debugfs(adapter); | |
3730 | } | |
3731 | ||
b8ff05a9 DM |
3732 | if (is_offload(adapter)) |
3733 | attach_ulds(adapter); | |
3734 | ||
3735 | print_port_info(adapter); | |
3736 | ||
3737 | sriov: | |
3738 | #ifdef CONFIG_PCI_IOV | |
3739 | if (func < ARRAY_SIZE(num_vf) && num_vf[func] > 0) | |
3740 | if (pci_enable_sriov(pdev, num_vf[func]) == 0) | |
3741 | dev_info(&pdev->dev, | |
3742 | "instantiated %u virtual functions\n", | |
3743 | num_vf[func]); | |
3744 | #endif | |
3745 | return 0; | |
3746 | ||
3747 | out_free_dev: | |
06546391 | 3748 | free_some_resources(adapter); |
b8ff05a9 DM |
3749 | out_unmap_bar: |
3750 | iounmap(adapter->regs); | |
3751 | out_free_adapter: | |
3752 | kfree(adapter); | |
3753 | out_disable_device: | |
3754 | pci_disable_pcie_error_reporting(pdev); | |
3755 | pci_disable_device(pdev); | |
3756 | out_release_regions: | |
3757 | pci_release_regions(pdev); | |
3758 | pci_set_drvdata(pdev, NULL); | |
3759 | return err; | |
3760 | } | |
3761 | ||
3762 | static void __devexit remove_one(struct pci_dev *pdev) | |
3763 | { | |
3764 | struct adapter *adapter = pci_get_drvdata(pdev); | |
3765 | ||
3766 | pci_disable_sriov(pdev); | |
3767 | ||
3768 | if (adapter) { | |
3769 | int i; | |
3770 | ||
3771 | if (is_offload(adapter)) | |
3772 | detach_ulds(adapter); | |
3773 | ||
3774 | for_each_port(adapter, i) | |
3775 | if (test_bit(i, &adapter->registered_device_map)) | |
3776 | unregister_netdev(adapter->port[i]); | |
3777 | ||
3778 | if (adapter->debugfs_root) | |
3779 | debugfs_remove_recursive(adapter->debugfs_root); | |
3780 | ||
aaefae9b DM |
3781 | if (adapter->flags & FULL_INIT_DONE) |
3782 | cxgb_down(adapter); | |
b8ff05a9 | 3783 | |
06546391 | 3784 | free_some_resources(adapter); |
b8ff05a9 DM |
3785 | iounmap(adapter->regs); |
3786 | kfree(adapter); | |
3787 | pci_disable_pcie_error_reporting(pdev); | |
3788 | pci_disable_device(pdev); | |
3789 | pci_release_regions(pdev); | |
3790 | pci_set_drvdata(pdev, NULL); | |
3791 | } else if (PCI_FUNC(pdev->devfn) > 0) | |
3792 | pci_release_regions(pdev); | |
3793 | } | |
3794 | ||
3795 | static struct pci_driver cxgb4_driver = { | |
3796 | .name = KBUILD_MODNAME, | |
3797 | .id_table = cxgb4_pci_tbl, | |
3798 | .probe = init_one, | |
3799 | .remove = __devexit_p(remove_one), | |
204dc3c0 | 3800 | .err_handler = &cxgb4_eeh, |
b8ff05a9 DM |
3801 | }; |
3802 | ||
3803 | static int __init cxgb4_init_module(void) | |
3804 | { | |
3805 | int ret; | |
3806 | ||
3807 | /* Debugfs support is optional, just warn if this fails */ | |
3808 | cxgb4_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL); | |
3809 | if (!cxgb4_debugfs_root) | |
3810 | pr_warning("could not create debugfs entry, continuing\n"); | |
3811 | ||
3812 | ret = pci_register_driver(&cxgb4_driver); | |
3813 | if (ret < 0) | |
3814 | debugfs_remove(cxgb4_debugfs_root); | |
3815 | return ret; | |
3816 | } | |
3817 | ||
3818 | static void __exit cxgb4_cleanup_module(void) | |
3819 | { | |
3820 | pci_unregister_driver(&cxgb4_driver); | |
3821 | debugfs_remove(cxgb4_debugfs_root); /* NULL ok */ | |
3822 | } | |
3823 | ||
3824 | module_init(cxgb4_init_module); | |
3825 | module_exit(cxgb4_cleanup_module); |