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net/mlx4_en: Use the correct netif lock on ndo_set_rx_mode
[linux-2.6-block.git] / drivers / net / ethernet / mellanox / mlx4 / main.c
CommitLineData
225c7b1f
RD		 1/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
51a379d0 4 * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
225c7b1f
RD		 5 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
6 *
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * OpenIB.org BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
15 * conditions are met:
16 *
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer.
20 *
21 * - Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials
24 * provided with the distribution.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 * SOFTWARE.
34 */
35
36#include <linux/module.h>
37#include <linux/init.h>
38#include <linux/errno.h>
39#include <linux/pci.h>
40#include <linux/dma-mapping.h>
5a0e3ad6 41#include <linux/slab.h>
c1b43dca 42#include <linux/io-mapping.h>
ab9c17a0 43#include <linux/delay.h>
90b1ebe7 44#include <linux/netdevice.h>
225c7b1f
RD		 45
46#include <linux/mlx4/device.h>
47#include <linux/mlx4/doorbell.h>
48
49#include "mlx4.h"
50#include "fw.h"
51#include "icm.h"
52
53MODULE_AUTHOR("Roland Dreier");
54MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
55MODULE_LICENSE("Dual BSD/GPL");
56MODULE_VERSION(DRV_VERSION);
57
27bf91d6
YP		 58struct workqueue_struct *mlx4_wq;
59
225c7b1f
RD		 60#ifdef CONFIG_MLX4_DEBUG
61
62int mlx4_debug_level = 0;
63module_param_named(debug_level, mlx4_debug_level, int, 0644);
64MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
65
66#endif /* CONFIG_MLX4_DEBUG */
67
68#ifdef CONFIG_PCI_MSI
69
08fb1055 70static int msi_x = 1;
225c7b1f
RD		 71module_param(msi_x, int, 0444);
72MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
73
74#else /* CONFIG_PCI_MSI */
75
76#define msi_x (0)
77
78#endif /* CONFIG_PCI_MSI */
79
ab9c17a0
JM		 80static int num_vfs;
81module_param(num_vfs, int, 0444);
82MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0");
83
84static int probe_vf;
85module_param(probe_vf, int, 0644);
86MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)");
87
3c439b55 88int mlx4_log_num_mgm_entry_size = MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
0ec2c0f8
EE		 89module_param_named(log_num_mgm_entry_size,
90 mlx4_log_num_mgm_entry_size, int, 0444);
91MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num"
92 " of qp per mcg, for example:"
3c439b55 93 " 10 gives 248.range: 7 <="
0ff1fb65 94 " log_num_mgm_entry_size <= 12."
3c439b55
JM		 95 " To activate device managed"
96 " flow steering when available, set to -1");
0ec2c0f8 97
08ff3235
OG		 98static bool enable_64b_cqe_eqe;
99module_param(enable_64b_cqe_eqe, bool, 0444);
100MODULE_PARM_DESC(enable_64b_cqe_eqe,
101 "Enable 64 byte CQEs/EQEs when the the FW supports this");
102
ab9c17a0 103#define HCA_GLOBAL_CAP_MASK 0
08ff3235
OG		 104
105#define PF_CONTEXT_BEHAVIOUR_MASK MLX4_FUNC_CAP_64B_EQE_CQE
ab9c17a0 106
f57e6848 107static char mlx4_version[] =
225c7b1f
RD		 108 DRV_NAME ": Mellanox ConnectX core driver v"
109 DRV_VERSION " (" DRV_RELDATE ")\n";
110
111static struct mlx4_profile default_profile = {
ab9c17a0 112 .num_qp = 1 << 18,
225c7b1f 113 .num_srq = 1 << 16,
c9f2ba5e 114 .rdmarc_per_qp = 1 << 4,
225c7b1f
RD		 115 .num_cq = 1 << 16,
116 .num_mcg = 1 << 13,
ab9c17a0 117 .num_mpt = 1 << 19,
9fd7a1e1 118 .num_mtt = 1 << 20, /* It is really num mtt segements */
225c7b1f
RD		 119};
120
ab9c17a0 121static int log_num_mac = 7;
93fc9e1b
YP		 122module_param_named(log_num_mac, log_num_mac, int, 0444);
123MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
124
125static int log_num_vlan;
126module_param_named(log_num_vlan, log_num_vlan, int, 0444);
127MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
cb29688a
OG		 128/* Log2 max number of VLANs per ETH port (0-7) */
129#define MLX4_LOG_NUM_VLANS 7
93fc9e1b 130
eb939922 131static bool use_prio;
93fc9e1b
YP		 132module_param_named(use_prio, use_prio, bool, 0444);
133MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
134 "(0/1, default 0)");
135
2b8fb286 136int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
ab6bf42e 137module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
0498628f 138MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
ab6bf42e 139
8d0fc7b6 140static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE};
ab9c17a0
JM		 141static int arr_argc = 2;
142module_param_array(port_type_array, int, &arr_argc, 0444);
8d0fc7b6
YP		 143MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default "
144 "1 for IB, 2 for Ethernet");
ab9c17a0
JM		 145
146struct mlx4_port_config {
147 struct list_head list;
148 enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
149 struct pci_dev *pdev;
150};
151
27bf91d6
YP		 152int mlx4_check_port_params(struct mlx4_dev *dev,
153 enum mlx4_port_type *port_type)
7ff93f8b
YP		 154{
155 int i;
156
157 for (i = 0; i < dev->caps.num_ports - 1; i++) {
27bf91d6
YP		 158 if (port_type[i] != port_type[i + 1]) {
159 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
160 mlx4_err(dev, "Only same port types supported "
161 "on this HCA, aborting.\n");
162 return -EINVAL;
163 }
7ff93f8b
YP		 164 }
165 }
7ff93f8b
YP		 166
167 for (i = 0; i < dev->caps.num_ports; i++) {
168 if (!(port_type[i] & dev->caps.supported_type[i+1])) {
169 mlx4_err(dev, "Requested port type for port %d is not "
170 "supported on this HCA\n", i + 1);
171 return -EINVAL;
172 }
173 }
174 return 0;
175}
176
177static void mlx4_set_port_mask(struct mlx4_dev *dev)
178{
179 int i;
180
7ff93f8b 181 for (i = 1; i <= dev->caps.num_ports; ++i)
65dab25d 182 dev->caps.port_mask[i] = dev->caps.port_type[i];
7ff93f8b 183}
f2a3f6a3 184
3d73c288 185static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
225c7b1f
RD		 186{
187 int err;
5ae2a7a8 188 int i;
225c7b1f
RD		 189
190 err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
191 if (err) {
192 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
193 return err;
194 }
195
196 if (dev_cap->min_page_sz > PAGE_SIZE) {
197 mlx4_err(dev, "HCA minimum page size of %d bigger than "
198 "kernel PAGE_SIZE of %ld, aborting.\n",
199 dev_cap->min_page_sz, PAGE_SIZE);
200 return -ENODEV;
201 }
202 if (dev_cap->num_ports > MLX4_MAX_PORTS) {
203 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
204 "aborting.\n",
205 dev_cap->num_ports, MLX4_MAX_PORTS);
206 return -ENODEV;
207 }
208
209 if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
210 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
211 "PCI resource 2 size of 0x%llx, aborting.\n",
212 dev_cap->uar_size,
213 (unsigned long long) pci_resource_len(dev->pdev, 2));
214 return -ENODEV;
215 }
216
217 dev->caps.num_ports = dev_cap->num_ports;
3fc929e2 218 dev->phys_caps.num_phys_eqs = MLX4_MAX_EQ_NUM;
5ae2a7a8
RD		 219 for (i = 1; i <= dev->caps.num_ports; ++i) {
220 dev->caps.vl_cap[i] = dev_cap->max_vl[i];
b79acb49 221 dev->caps.ib_mtu_cap[i] = dev_cap->ib_mtu[i];
6634961c
JM		 222 dev->phys_caps.gid_phys_table_len[i] = dev_cap->max_gids[i];
223 dev->phys_caps.pkey_phys_table_len[i] = dev_cap->max_pkeys[i];
224 /* set gid and pkey table operating lengths by default
225 * to non-sriov values */
5ae2a7a8
RD		 226 dev->caps.gid_table_len[i] = dev_cap->max_gids[i];
227 dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
228 dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
b79acb49
YP		 229 dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i];
230 dev->caps.def_mac[i] = dev_cap->def_mac[i];
7ff93f8b 231 dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
8d0fc7b6
YP		 232 dev->caps.suggested_type[i] = dev_cap->suggested_type[i];
233 dev->caps.default_sense[i] = dev_cap->default_sense[i];
7699517d
YP		 234 dev->caps.trans_type[i] = dev_cap->trans_type[i];
235 dev->caps.vendor_oui[i] = dev_cap->vendor_oui[i];
236 dev->caps.wavelength[i] = dev_cap->wavelength[i];
237 dev->caps.trans_code[i] = dev_cap->trans_code[i];
5ae2a7a8
RD		 238 }
239
ab9c17a0 240 dev->caps.uar_page_size = PAGE_SIZE;
225c7b1f 241 dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
225c7b1f
RD		 242 dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
243 dev->caps.bf_reg_size = dev_cap->bf_reg_size;
244 dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
245 dev->caps.max_sq_sg = dev_cap->max_sq_sg;
246 dev->caps.max_rq_sg = dev_cap->max_rq_sg;
247 dev->caps.max_wqes = dev_cap->max_qp_sz;
248 dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
225c7b1f
RD		 249 dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
250 dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
251 dev->caps.reserved_srqs = dev_cap->reserved_srqs;
252 dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
253 dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
225c7b1f
RD		 254 /*
255 * Subtract 1 from the limit because we need to allocate a
256 * spare CQE so the HCA HW can tell the difference between an
257 * empty CQ and a full CQ.
258 */
259 dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
260 dev->caps.reserved_cqs = dev_cap->reserved_cqs;
261 dev->caps.reserved_eqs = dev_cap->reserved_eqs;
2b8fb286 262 dev->caps.reserved_mtts = dev_cap->reserved_mtts;
225c7b1f 263 dev->caps.reserved_mrws = dev_cap->reserved_mrws;
ab9c17a0
JM		 264
265 /* The first 128 UARs are used for EQ doorbells */
266 dev->caps.reserved_uars = max_t(int, 128, dev_cap->reserved_uars);
225c7b1f 267 dev->caps.reserved_pds = dev_cap->reserved_pds;
012a8ff5
SH		 268 dev->caps.reserved_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
269 dev_cap->reserved_xrcds : 0;
270 dev->caps.max_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
271 dev_cap->max_xrcds : 0;
2b8fb286
MA		 272 dev->caps.mtt_entry_sz = dev_cap->mtt_entry_sz;
273
149983af 274 dev->caps.max_msg_sz = dev_cap->max_msg_sz;
225c7b1f
RD		 275 dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
276 dev->caps.flags = dev_cap->flags;
b3416f44 277 dev->caps.flags2 = dev_cap->flags2;
95d04f07
RD		 278 dev->caps.bmme_flags = dev_cap->bmme_flags;
279 dev->caps.reserved_lkey = dev_cap->reserved_lkey;
225c7b1f 280 dev->caps.stat_rate_support = dev_cap->stat_rate_support;
b832be1e 281 dev->caps.max_gso_sz = dev_cap->max_gso_sz;
b3416f44 282 dev->caps.max_rss_tbl_sz = dev_cap->max_rss_tbl_sz;
225c7b1f 283
ca3e57a5
RD		 284 /* Sense port always allowed on supported devices for ConnectX-1 and -2 */
285 if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT)
58a60168 286 dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
aadf4f3f
RD		 287 /* Don't do sense port on multifunction devices (for now at least) */
288 if (mlx4_is_mfunc(dev))
289 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
58a60168 290
93fc9e1b 291 dev->caps.log_num_macs = log_num_mac;
cb29688a 292 dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
93fc9e1b
YP		 293 dev->caps.log_num_prios = use_prio ? 3 : 0;
294
295 for (i = 1; i <= dev->caps.num_ports; ++i) {
ab9c17a0
JM		 296 dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE;
297 if (dev->caps.supported_type[i]) {
298 /* if only ETH is supported - assign ETH */
299 if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH)
300 dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
105c320f 301 /* if only IB is supported, assign IB */
ab9c17a0 302 else if (dev->caps.supported_type[i] ==
105c320f
JM		 303 MLX4_PORT_TYPE_IB)
304 dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
ab9c17a0 305 else {
105c320f
JM		 306 /* if IB and ETH are supported, we set the port
307 * type according to user selection of port type;
308 * if user selected none, take the FW hint */
309 if (port_type_array[i - 1] == MLX4_PORT_TYPE_NONE)
8d0fc7b6
YP		 310 dev->caps.port_type[i] = dev->caps.suggested_type[i] ?
311 MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB;
ab9c17a0 312 else
105c320f 313 dev->caps.port_type[i] = port_type_array[i - 1];
ab9c17a0
JM		 314 }
315 }
8d0fc7b6
YP		 316 /*
317 * Link sensing is allowed on the port if 3 conditions are true:
318 * 1. Both protocols are supported on the port.
319 * 2. Different types are supported on the port
320 * 3. FW declared that it supports link sensing
321 */
27bf91d6 322 mlx4_priv(dev)->sense.sense_allowed[i] =
58a60168 323 ((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) &&
8d0fc7b6 324 (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
58a60168 325 (dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT));
7ff93f8b 326
8d0fc7b6
YP		 327 /*
328 * If "default_sense" bit is set, we move the port to "AUTO" mode
329 * and perform sense_port FW command to try and set the correct
330 * port type from beginning
331 */
46c46747 332 if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) {
8d0fc7b6
YP		 333 enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE;
334 dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO;
335 mlx4_SENSE_PORT(dev, i, &sensed_port);
336 if (sensed_port != MLX4_PORT_TYPE_NONE)
337 dev->caps.port_type[i] = sensed_port;
338 } else {
339 dev->caps.possible_type[i] = dev->caps.port_type[i];
340 }
341
93fc9e1b
YP		 342 if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
343 dev->caps.log_num_macs = dev_cap->log_max_macs[i];
344 mlx4_warn(dev, "Requested number of MACs is too much "
345 "for port %d, reducing to %d.\n",
346 i, 1 << dev->caps.log_num_macs);
347 }
348 if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
349 dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
350 mlx4_warn(dev, "Requested number of VLANs is too much "
351 "for port %d, reducing to %d.\n",
352 i, 1 << dev->caps.log_num_vlans);
353 }
354 }
355
f2a3f6a3
OG		 356 dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
357
93fc9e1b
YP		 358 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
359 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
360 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
361 (1 << dev->caps.log_num_macs) *
362 (1 << dev->caps.log_num_vlans) *
363 (1 << dev->caps.log_num_prios) *
364 dev->caps.num_ports;
365 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
366
367 dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
368 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
369 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
370 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
371
e2c76824 372 dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0;
08ff3235
OG		 373
374 if (!enable_64b_cqe_eqe) {
375 if (dev_cap->flags &
376 (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) {
377 mlx4_warn(dev, "64B EQEs/CQEs supported by the device but not enabled\n");
378 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
379 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
380 }
381 }
382
383 if ((dev_cap->flags &
384 (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) &&
385 mlx4_is_master(dev))
386 dev->caps.function_caps |= MLX4_FUNC_CAP_64B_EQE_CQE;
387
225c7b1f
RD		 388 return 0;
389}
ab9c17a0
JM		 390/*The function checks if there are live vf, return the num of them*/
391static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
392{
393 struct mlx4_priv *priv = mlx4_priv(dev);
394 struct mlx4_slave_state *s_state;
395 int i;
396 int ret = 0;
397
398 for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) {
399 s_state = &priv->mfunc.master.slave_state[i];
400 if (s_state->active && s_state->last_cmd !=
401 MLX4_COMM_CMD_RESET) {
402 mlx4_warn(dev, "%s: slave: %d is still active\n",
403 __func__, i);
404 ret++;
405 }
406 }
407 return ret;
408}
409
396f2feb
JM		 410int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey)
411{
412 u32 qk = MLX4_RESERVED_QKEY_BASE;
47605df9
JM		 413
414 if (qpn >= dev->phys_caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX ||
415 qpn < dev->phys_caps.base_proxy_sqpn)
396f2feb
JM		 416 return -EINVAL;
417
47605df9 418 if (qpn >= dev->phys_caps.base_tunnel_sqpn)
396f2feb 419 /* tunnel qp */
47605df9 420 qk += qpn - dev->phys_caps.base_tunnel_sqpn;
396f2feb 421 else
47605df9 422 qk += qpn - dev->phys_caps.base_proxy_sqpn;
396f2feb
JM		 423 *qkey = qk;
424 return 0;
425}
426EXPORT_SYMBOL(mlx4_get_parav_qkey);
427
54679e14
JM		 428void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val)
429{
430 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
431
432 if (!mlx4_is_master(dev))
433 return;
434
435 priv->virt2phys_pkey[slave][port - 1][i] = val;
436}
437EXPORT_SYMBOL(mlx4_sync_pkey_table);
438
afa8fd1d
JM		 439void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid)
440{
441 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
442
443 if (!mlx4_is_master(dev))
444 return;
445
446 priv->slave_node_guids[slave] = guid;
447}
448EXPORT_SYMBOL(mlx4_put_slave_node_guid);
449
450__be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave)
451{
452 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
453
454 if (!mlx4_is_master(dev))
455 return 0;
456
457 return priv->slave_node_guids[slave];
458}
459EXPORT_SYMBOL(mlx4_get_slave_node_guid);
460
e10903b0 461int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
ab9c17a0
JM		 462{
463 struct mlx4_priv *priv = mlx4_priv(dev);
464 struct mlx4_slave_state *s_slave;
465
466 if (!mlx4_is_master(dev))
467 return 0;
468
469 s_slave = &priv->mfunc.master.slave_state[slave];
470 return !!s_slave->active;
471}
472EXPORT_SYMBOL(mlx4_is_slave_active);
473
7b8157be
JM		 474static void slave_adjust_steering_mode(struct mlx4_dev *dev,
475 struct mlx4_dev_cap *dev_cap,
476 struct mlx4_init_hca_param *hca_param)
477{
478 dev->caps.steering_mode = hca_param->steering_mode;
479 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
480 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
481 dev->caps.fs_log_max_ucast_qp_range_size =
482 dev_cap->fs_log_max_ucast_qp_range_size;
483 } else
484 dev->caps.num_qp_per_mgm =
485 4 * ((1 << hca_param->log_mc_entry_sz)/16 - 2);
486
487 mlx4_dbg(dev, "Steering mode is: %s\n",
488 mlx4_steering_mode_str(dev->caps.steering_mode));
489}
490
ab9c17a0
JM		 491static int mlx4_slave_cap(struct mlx4_dev *dev)
492{
493 int err;
494 u32 page_size;
495 struct mlx4_dev_cap dev_cap;
496 struct mlx4_func_cap func_cap;
497 struct mlx4_init_hca_param hca_param;
498 int i;
499
500 memset(&hca_param, 0, sizeof(hca_param));
501 err = mlx4_QUERY_HCA(dev, &hca_param);
502 if (err) {
503 mlx4_err(dev, "QUERY_HCA command failed, aborting.\n");
504 return err;
505 }
506
507 /*fail if the hca has an unknown capability */
508 if ((hca_param.global_caps | HCA_GLOBAL_CAP_MASK) !=
509 HCA_GLOBAL_CAP_MASK) {
510 mlx4_err(dev, "Unknown hca global capabilities\n");
511 return -ENOSYS;
512 }
513
514 mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
515
516 memset(&dev_cap, 0, sizeof(dev_cap));
b91cb3eb 517 dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp;
ab9c17a0
JM		 518 err = mlx4_dev_cap(dev, &dev_cap);
519 if (err) {
520 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
521 return err;
522 }
523
b91cb3eb
JM		 524 err = mlx4_QUERY_FW(dev);
525 if (err)
526 mlx4_err(dev, "QUERY_FW command failed: could not get FW version.\n");
527
ab9c17a0
JM		 528 page_size = ~dev->caps.page_size_cap + 1;
529 mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
530 if (page_size > PAGE_SIZE) {
531 mlx4_err(dev, "HCA minimum page size of %d bigger than "
532 "kernel PAGE_SIZE of %ld, aborting.\n",
533 page_size, PAGE_SIZE);
534 return -ENODEV;
535 }
536
537 /* slave gets uar page size from QUERY_HCA fw command */
538 dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
539
540 /* TODO: relax this assumption */
541 if (dev->caps.uar_page_size != PAGE_SIZE) {
542 mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
543 dev->caps.uar_page_size, PAGE_SIZE);
544 return -ENODEV;
545 }
546
547 memset(&func_cap, 0, sizeof(func_cap));
47605df9 548 err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap);
ab9c17a0 549 if (err) {
47605df9
JM		 550 mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d).\n",
551 err);
ab9c17a0
JM		 552 return err;
553 }
554
555 if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
556 PF_CONTEXT_BEHAVIOUR_MASK) {
557 mlx4_err(dev, "Unknown pf context behaviour\n");
558 return -ENOSYS;
559 }
560
ab9c17a0
JM		 561 dev->caps.num_ports = func_cap.num_ports;
562 dev->caps.num_qps = func_cap.qp_quota;
563 dev->caps.num_srqs = func_cap.srq_quota;
564 dev->caps.num_cqs = func_cap.cq_quota;
565 dev->caps.num_eqs = func_cap.max_eq;
566 dev->caps.reserved_eqs = func_cap.reserved_eq;
567 dev->caps.num_mpts = func_cap.mpt_quota;
568 dev->caps.num_mtts = func_cap.mtt_quota;
569 dev->caps.num_pds = MLX4_NUM_PDS;
570 dev->caps.num_mgms = 0;
571 dev->caps.num_amgms = 0;
572
ab9c17a0
JM		 573 if (dev->caps.num_ports > MLX4_MAX_PORTS) {
574 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
575 "aborting.\n", dev->caps.num_ports, MLX4_MAX_PORTS);
576 return -ENODEV;
577 }
578
47605df9
JM		 579 dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
580 dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
581 dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
582 dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
583
584 if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy ||
585 !dev->caps.qp1_tunnel || !dev->caps.qp1_proxy) {
586 err = -ENOMEM;
587 goto err_mem;
588 }
589
6634961c 590 for (i = 1; i <= dev->caps.num_ports; ++i) {
47605df9
JM		 591 err = mlx4_QUERY_FUNC_CAP(dev, (u32) i, &func_cap);
592 if (err) {
593 mlx4_err(dev, "QUERY_FUNC_CAP port command failed for"
594 " port %d, aborting (%d).\n", i, err);
595 goto err_mem;
596 }
597 dev->caps.qp0_tunnel[i - 1] = func_cap.qp0_tunnel_qpn;
598 dev->caps.qp0_proxy[i - 1] = func_cap.qp0_proxy_qpn;
599 dev->caps.qp1_tunnel[i - 1] = func_cap.qp1_tunnel_qpn;
600 dev->caps.qp1_proxy[i - 1] = func_cap.qp1_proxy_qpn;
6230bb23 601 dev->caps.port_mask[i] = dev->caps.port_type[i];
6634961c
JM		 602 if (mlx4_get_slave_pkey_gid_tbl_len(dev, i,
603 &dev->caps.gid_table_len[i],
604 &dev->caps.pkey_table_len[i]))
47605df9 605 goto err_mem;
6634961c 606 }
6230bb23 607
ab9c17a0
JM		 608 if (dev->caps.uar_page_size * (dev->caps.num_uars -
609 dev->caps.reserved_uars) >
610 pci_resource_len(dev->pdev, 2)) {
611 mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than "
612 "PCI resource 2 size of 0x%llx, aborting.\n",
613 dev->caps.uar_page_size * dev->caps.num_uars,
614 (unsigned long long) pci_resource_len(dev->pdev, 2));
47605df9 615 goto err_mem;
ab9c17a0
JM		 616 }
617
08ff3235
OG		 618 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_EQE_ENABLED) {
619 dev->caps.eqe_size = 64;
620 dev->caps.eqe_factor = 1;
621 } else {
622 dev->caps.eqe_size = 32;
623 dev->caps.eqe_factor = 0;
624 }
625
626 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_CQE_ENABLED) {
627 dev->caps.cqe_size = 64;
628 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_64B_CQE;
629 } else {
630 dev->caps.cqe_size = 32;
631 }
632
7b8157be
JM		 633 slave_adjust_steering_mode(dev, &dev_cap, &hca_param);
634
ab9c17a0 635 return 0;
47605df9
JM		 636
637err_mem:
638 kfree(dev->caps.qp0_tunnel);
639 kfree(dev->caps.qp0_proxy);
640 kfree(dev->caps.qp1_tunnel);
641 kfree(dev->caps.qp1_proxy);
642 dev->caps.qp0_tunnel = dev->caps.qp0_proxy =
643 dev->caps.qp1_tunnel = dev->caps.qp1_proxy = NULL;
644
645 return err;
ab9c17a0 646}
225c7b1f 647
7ff93f8b
YP		 648/*
649 * Change the port configuration of the device.
650 * Every user of this function must hold the port mutex.
651 */
27bf91d6
YP		 652int mlx4_change_port_types(struct mlx4_dev *dev,
653 enum mlx4_port_type *port_types)
7ff93f8b
YP		 654{
655 int err = 0;
656 int change = 0;
657 int port;
658
659 for (port = 0; port < dev->caps.num_ports; port++) {
27bf91d6
YP		 660 /* Change the port type only if the new type is different
661 * from the current, and not set to Auto */
3d8f9308 662 if (port_types[port] != dev->caps.port_type[port + 1])
7ff93f8b 663 change = 1;
7ff93f8b
YP		 664 }
665 if (change) {
666 mlx4_unregister_device(dev);
667 for (port = 1; port <= dev->caps.num_ports; port++) {
668 mlx4_CLOSE_PORT(dev, port);
1e0f03d5 669 dev->caps.port_type[port] = port_types[port - 1];
6634961c 670 err = mlx4_SET_PORT(dev, port, -1);
7ff93f8b
YP		 671 if (err) {
672 mlx4_err(dev, "Failed to set port %d, "
673 "aborting\n", port);
674 goto out;
675 }
676 }
677 mlx4_set_port_mask(dev);
678 err = mlx4_register_device(dev);
679 }
680
681out:
682 return err;
683}
684
685static ssize_t show_port_type(struct device *dev,
686 struct device_attribute *attr,
687 char *buf)
688{
689 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
690 port_attr);
691 struct mlx4_dev *mdev = info->dev;
27bf91d6
YP		 692 char type[8];
693
694 sprintf(type, "%s",
695 (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
696 "ib" : "eth");
697 if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
698 sprintf(buf, "auto (%s)\n", type);
699 else
700 sprintf(buf, "%s\n", type);
7ff93f8b 701
27bf91d6 702 return strlen(buf);
7ff93f8b
YP		 703}
704
705static ssize_t set_port_type(struct device *dev,
706 struct device_attribute *attr,
707 const char *buf, size_t count)
708{
709 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
710 port_attr);
711 struct mlx4_dev *mdev = info->dev;
712 struct mlx4_priv *priv = mlx4_priv(mdev);
713 enum mlx4_port_type types[MLX4_MAX_PORTS];
27bf91d6 714 enum mlx4_port_type new_types[MLX4_MAX_PORTS];
7ff93f8b
YP		 715 int i;
716 int err = 0;
717
718 if (!strcmp(buf, "ib\n"))
719 info->tmp_type = MLX4_PORT_TYPE_IB;
720 else if (!strcmp(buf, "eth\n"))
721 info->tmp_type = MLX4_PORT_TYPE_ETH;
27bf91d6
YP		 722 else if (!strcmp(buf, "auto\n"))
723 info->tmp_type = MLX4_PORT_TYPE_AUTO;
7ff93f8b
YP		 724 else {
725 mlx4_err(mdev, "%s is not supported port type\n", buf);
726 return -EINVAL;
727 }
728
27bf91d6 729 mlx4_stop_sense(mdev);
7ff93f8b 730 mutex_lock(&priv->port_mutex);
27bf91d6
YP		 731 /* Possible type is always the one that was delivered */
732 mdev->caps.possible_type[info->port] = info->tmp_type;
733
734 for (i = 0; i < mdev->caps.num_ports; i++) {
7ff93f8b 735 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
27bf91d6
YP		 736 mdev->caps.possible_type[i+1];
737 if (types[i] == MLX4_PORT_TYPE_AUTO)
738 types[i] = mdev->caps.port_type[i+1];
739 }
7ff93f8b 740
58a60168
YP		 741 if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
742 !(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) {
27bf91d6
YP		 743 for (i = 1; i <= mdev->caps.num_ports; i++) {
744 if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
745 mdev->caps.possible_type[i] = mdev->caps.port_type[i];
746 err = -EINVAL;
747 }
748 }
749 }
750 if (err) {
751 mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
752 "Set only 'eth' or 'ib' for both ports "
753 "(should be the same)\n");
754 goto out;
755 }
756
757 mlx4_do_sense_ports(mdev, new_types, types);
758
759 err = mlx4_check_port_params(mdev, new_types);
7ff93f8b
YP		 760 if (err)
761 goto out;
762
27bf91d6
YP		 763 /* We are about to apply the changes after the configuration
764 * was verified, no need to remember the temporary types
765 * any more */
766 for (i = 0; i < mdev->caps.num_ports; i++)
767 priv->port[i + 1].tmp_type = 0;
7ff93f8b 768
27bf91d6 769 err = mlx4_change_port_types(mdev, new_types);
7ff93f8b
YP		 770
771out:
27bf91d6 772 mlx4_start_sense(mdev);
7ff93f8b
YP		 773 mutex_unlock(&priv->port_mutex);
774 return err ? err : count;
775}
776
096335b3
OG		 777enum ibta_mtu {
778 IB_MTU_256 = 1,
779 IB_MTU_512 = 2,
780 IB_MTU_1024 = 3,
781 IB_MTU_2048 = 4,
782 IB_MTU_4096 = 5
783};
784
785static inline int int_to_ibta_mtu(int mtu)
786{
787 switch (mtu) {
788 case 256: return IB_MTU_256;
789 case 512: return IB_MTU_512;
790 case 1024: return IB_MTU_1024;
791 case 2048: return IB_MTU_2048;
792 case 4096: return IB_MTU_4096;
793 default: return -1;
794 }
795}
796
797static inline int ibta_mtu_to_int(enum ibta_mtu mtu)
798{
799 switch (mtu) {
800 case IB_MTU_256: return 256;
801 case IB_MTU_512: return 512;
802 case IB_MTU_1024: return 1024;
803 case IB_MTU_2048: return 2048;
804 case IB_MTU_4096: return 4096;
805 default: return -1;
806 }
807}
808
809static ssize_t show_port_ib_mtu(struct device *dev,
810 struct device_attribute *attr,
811 char *buf)
812{
813 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
814 port_mtu_attr);
815 struct mlx4_dev *mdev = info->dev;
816
817 if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH)
818 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
819
820 sprintf(buf, "%d\n",
821 ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port]));
822 return strlen(buf);
823}
824
825static ssize_t set_port_ib_mtu(struct device *dev,
826 struct device_attribute *attr,
827 const char *buf, size_t count)
828{
829 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
830 port_mtu_attr);
831 struct mlx4_dev *mdev = info->dev;
832 struct mlx4_priv *priv = mlx4_priv(mdev);
833 int err, port, mtu, ibta_mtu = -1;
834
835 if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) {
836 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
837 return -EINVAL;
838 }
839
840 err = sscanf(buf, "%d", &mtu);
841 if (err > 0)
842 ibta_mtu = int_to_ibta_mtu(mtu);
843
844 if (err <= 0 || ibta_mtu < 0) {
845 mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
846 return -EINVAL;
847 }
848
849 mdev->caps.port_ib_mtu[info->port] = ibta_mtu;
850
851 mlx4_stop_sense(mdev);
852 mutex_lock(&priv->port_mutex);
853 mlx4_unregister_device(mdev);
854 for (port = 1; port <= mdev->caps.num_ports; port++) {
855 mlx4_CLOSE_PORT(mdev, port);
6634961c 856 err = mlx4_SET_PORT(mdev, port, -1);
096335b3
OG		 857 if (err) {
858 mlx4_err(mdev, "Failed to set port %d, "
859 "aborting\n", port);
860 goto err_set_port;
861 }
862 }
863 err = mlx4_register_device(mdev);
864err_set_port:
865 mutex_unlock(&priv->port_mutex);
866 mlx4_start_sense(mdev);
867 return err ? err : count;
868}
869
e8f9b2ed 870static int mlx4_load_fw(struct mlx4_dev *dev)
225c7b1f
RD		 871{
872 struct mlx4_priv *priv = mlx4_priv(dev);
873 int err;
874
875 priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
5b0bf5e2 876 GFP_HIGHUSER | __GFP_NOWARN, 0);
225c7b1f
RD		 877 if (!priv->fw.fw_icm) {
878 mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
879 return -ENOMEM;
880 }
881
882 err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
883 if (err) {
884 mlx4_err(dev, "MAP_FA command failed, aborting.\n");
885 goto err_free;
886 }
887
888 err = mlx4_RUN_FW(dev);
889 if (err) {
890 mlx4_err(dev, "RUN_FW command failed, aborting.\n");
891 goto err_unmap_fa;
892 }
893
894 return 0;
895
896err_unmap_fa:
897 mlx4_UNMAP_FA(dev);
898
899err_free:
5b0bf5e2 900 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
225c7b1f
RD		 901 return err;
902}
903
e8f9b2ed
RD		 904static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
905 int cmpt_entry_sz)
225c7b1f
RD		 906{
907 struct mlx4_priv *priv = mlx4_priv(dev);
908 int err;
ab9c17a0 909 int num_eqs;
225c7b1f
RD		 910
911 err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
912 cmpt_base +
913 ((u64) (MLX4_CMPT_TYPE_QP *
914 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
915 cmpt_entry_sz, dev->caps.num_qps,
93fc9e1b
YP		 916 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
917 0, 0);
225c7b1f
RD		 918 if (err)
919 goto err;
920
921 err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
922 cmpt_base +
923 ((u64) (MLX4_CMPT_TYPE_SRQ *
924 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
925 cmpt_entry_sz, dev->caps.num_srqs,
5b0bf5e2 926 dev->caps.reserved_srqs, 0, 0);
225c7b1f
RD		 927 if (err)
928 goto err_qp;
929
930 err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
931 cmpt_base +
932 ((u64) (MLX4_CMPT_TYPE_CQ *
933 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
934 cmpt_entry_sz, dev->caps.num_cqs,
5b0bf5e2 935 dev->caps.reserved_cqs, 0, 0);
225c7b1f
RD		 936 if (err)
937 goto err_srq;
938
3fc929e2
MA		 939 num_eqs = (mlx4_is_master(dev)) ? dev->phys_caps.num_phys_eqs :
940 dev->caps.num_eqs;
225c7b1f
RD		 941 err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
942 cmpt_base +
943 ((u64) (MLX4_CMPT_TYPE_EQ *
944 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
ab9c17a0 945 cmpt_entry_sz, num_eqs, num_eqs, 0, 0);
225c7b1f
RD		 946 if (err)
947 goto err_cq;
948
949 return 0;
950
951err_cq:
952 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
953
954err_srq:
955 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
956
957err_qp:
958 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
959
960err:
961 return err;
962}
963
3d73c288
RD		 964static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
965 struct mlx4_init_hca_param *init_hca, u64 icm_size)
225c7b1f
RD		 966{
967 struct mlx4_priv *priv = mlx4_priv(dev);
968 u64 aux_pages;
ab9c17a0 969 int num_eqs;
225c7b1f
RD		 970 int err;
971
972 err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
973 if (err) {
974 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
975 return err;
976 }
977
978 mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
979 (unsigned long long) icm_size >> 10,
980 (unsigned long long) aux_pages << 2);
981
982 priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
5b0bf5e2 983 GFP_HIGHUSER | __GFP_NOWARN, 0);
225c7b1f
RD		 984 if (!priv->fw.aux_icm) {
985 mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
986 return -ENOMEM;
987 }
988
989 err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
990 if (err) {
991 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
992 goto err_free_aux;
993 }
994
995 err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
996 if (err) {
997 mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
998 goto err_unmap_aux;
999 }
1000
ab9c17a0 1001
3fc929e2
MA		 1002 num_eqs = (mlx4_is_master(dev)) ? dev->phys_caps.num_phys_eqs :
1003 dev->caps.num_eqs;
fa0681d2
RD		 1004 err = mlx4_init_icm_table(dev, &priv->eq_table.table,
1005 init_hca->eqc_base, dev_cap->eqc_entry_sz,
ab9c17a0 1006 num_eqs, num_eqs, 0, 0);
225c7b1f
RD		 1007 if (err) {
1008 mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
1009 goto err_unmap_cmpt;
1010 }
1011
d7bb58fb
JM		 1012 /*
1013 * Reserved MTT entries must be aligned up to a cacheline
1014 * boundary, since the FW will write to them, while the driver
1015 * writes to all other MTT entries. (The variable
1016 * dev->caps.mtt_entry_sz below is really the MTT segment
1017 * size, not the raw entry size)
1018 */
1019 dev->caps.reserved_mtts =
1020 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
1021 dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
1022
225c7b1f
RD		 1023 err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
1024 init_hca->mtt_base,
1025 dev->caps.mtt_entry_sz,
2b8fb286 1026 dev->caps.num_mtts,
5b0bf5e2 1027 dev->caps.reserved_mtts, 1, 0);
225c7b1f
RD		 1028 if (err) {
1029 mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
1030 goto err_unmap_eq;
1031 }
1032
1033 err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
1034 init_hca->dmpt_base,
1035 dev_cap->dmpt_entry_sz,
1036 dev->caps.num_mpts,
5b0bf5e2 1037 dev->caps.reserved_mrws, 1, 1);
225c7b1f
RD		 1038 if (err) {
1039 mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
1040 goto err_unmap_mtt;
1041 }
1042
1043 err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
1044 init_hca->qpc_base,
1045 dev_cap->qpc_entry_sz,
1046 dev->caps.num_qps,
93fc9e1b
YP		 1047 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1048 0, 0);
225c7b1f
RD		 1049 if (err) {
1050 mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
1051 goto err_unmap_dmpt;
1052 }
1053
1054 err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
1055 init_hca->auxc_base,
1056 dev_cap->aux_entry_sz,
1057 dev->caps.num_qps,
93fc9e1b
YP		 1058 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1059 0, 0);
225c7b1f
RD		 1060 if (err) {
1061 mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
1062 goto err_unmap_qp;
1063 }
1064
1065 err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
1066 init_hca->altc_base,
1067 dev_cap->altc_entry_sz,
1068 dev->caps.num_qps,
93fc9e1b
YP		 1069 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1070 0, 0);
225c7b1f
RD		 1071 if (err) {
1072 mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
1073 goto err_unmap_auxc;
1074 }
1075
1076 err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
1077 init_hca->rdmarc_base,
1078 dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
1079 dev->caps.num_qps,
93fc9e1b
YP		 1080 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1081 0, 0);
225c7b1f
RD		 1082 if (err) {
1083 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
1084 goto err_unmap_altc;
1085 }
1086
1087 err = mlx4_init_icm_table(dev, &priv->cq_table.table,
1088 init_hca->cqc_base,
1089 dev_cap->cqc_entry_sz,
1090 dev->caps.num_cqs,
5b0bf5e2 1091 dev->caps.reserved_cqs, 0, 0);
225c7b1f
RD		 1092 if (err) {
1093 mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
1094 goto err_unmap_rdmarc;
1095 }
1096
1097 err = mlx4_init_icm_table(dev, &priv->srq_table.table,
1098 init_hca->srqc_base,
1099 dev_cap->srq_entry_sz,
1100 dev->caps.num_srqs,
5b0bf5e2 1101 dev->caps.reserved_srqs, 0, 0);
225c7b1f
RD		 1102 if (err) {
1103 mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
1104 goto err_unmap_cq;
1105 }
1106
1107 /*
0ff1fb65
HHZ		 1108 * For flow steering device managed mode it is required to use
1109 * mlx4_init_icm_table. For B0 steering mode it's not strictly
1110 * required, but for simplicity just map the whole multicast
1111 * group table now. The table isn't very big and it's a lot
1112 * easier than trying to track ref counts.
225c7b1f
RD		 1113 */
1114 err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
0ec2c0f8
EE		 1115 init_hca->mc_base,
1116 mlx4_get_mgm_entry_size(dev),
225c7b1f
RD		 1117 dev->caps.num_mgms + dev->caps.num_amgms,
1118 dev->caps.num_mgms + dev->caps.num_amgms,
5b0bf5e2 1119 0, 0);
225c7b1f
RD		 1120 if (err) {
1121 mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
1122 goto err_unmap_srq;
1123 }
1124
1125 return 0;
1126
1127err_unmap_srq:
1128 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1129
1130err_unmap_cq:
1131 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1132
1133err_unmap_rdmarc:
1134 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1135
1136err_unmap_altc:
1137 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1138
1139err_unmap_auxc:
1140 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1141
1142err_unmap_qp:
1143 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1144
1145err_unmap_dmpt:
1146 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1147
1148err_unmap_mtt:
1149 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1150
1151err_unmap_eq:
fa0681d2 1152 mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
225c7b1f
RD		 1153
1154err_unmap_cmpt:
1155 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1156 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1157 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1158 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1159
1160err_unmap_aux:
1161 mlx4_UNMAP_ICM_AUX(dev);
1162
1163err_free_aux:
5b0bf5e2 1164 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
225c7b1f
RD		 1165
1166 return err;
1167}
1168
1169static void mlx4_free_icms(struct mlx4_dev *dev)
1170{
1171 struct mlx4_priv *priv = mlx4_priv(dev);
1172
1173 mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
1174 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1175 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1176 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1177 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1178 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1179 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1180 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1181 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
fa0681d2 1182 mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
225c7b1f
RD		 1183 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1184 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1185 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1186 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
225c7b1f
RD		 1187
1188 mlx4_UNMAP_ICM_AUX(dev);
5b0bf5e2 1189 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
225c7b1f
RD		 1190}
1191
ab9c17a0
JM		 1192static void mlx4_slave_exit(struct mlx4_dev *dev)
1193{
1194 struct mlx4_priv *priv = mlx4_priv(dev);
1195
f3d4c89e 1196 mutex_lock(&priv->cmd.slave_cmd_mutex);
ab9c17a0
JM		 1197 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_TIME))
1198 mlx4_warn(dev, "Failed to close slave function.\n");
f3d4c89e 1199 mutex_unlock(&priv->cmd.slave_cmd_mutex);
ab9c17a0
JM		 1200}
1201
c1b43dca
EC		 1202static int map_bf_area(struct mlx4_dev *dev)
1203{
1204 struct mlx4_priv *priv = mlx4_priv(dev);
1205 resource_size_t bf_start;
1206 resource_size_t bf_len;
1207 int err = 0;
1208
3d747473
JM		 1209 if (!dev->caps.bf_reg_size)
1210 return -ENXIO;
1211
ab9c17a0
JM		 1212 bf_start = pci_resource_start(dev->pdev, 2) +
1213 (dev->caps.num_uars << PAGE_SHIFT);
1214 bf_len = pci_resource_len(dev->pdev, 2) -
1215 (dev->caps.num_uars << PAGE_SHIFT);
c1b43dca
EC		 1216 priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
1217 if (!priv->bf_mapping)
1218 err = -ENOMEM;
1219
1220 return err;
1221}
1222
1223static void unmap_bf_area(struct mlx4_dev *dev)
1224{
1225 if (mlx4_priv(dev)->bf_mapping)
1226 io_mapping_free(mlx4_priv(dev)->bf_mapping);
1227}
1228
225c7b1f
RD		 1229static void mlx4_close_hca(struct mlx4_dev *dev)
1230{
c1b43dca 1231 unmap_bf_area(dev);
ab9c17a0
JM		 1232 if (mlx4_is_slave(dev))
1233 mlx4_slave_exit(dev);
1234 else {
1235 mlx4_CLOSE_HCA(dev, 0);
1236 mlx4_free_icms(dev);
1237 mlx4_UNMAP_FA(dev);
1238 mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
1239 }
1240}
1241
1242static int mlx4_init_slave(struct mlx4_dev *dev)
1243{
1244 struct mlx4_priv *priv = mlx4_priv(dev);
1245 u64 dma = (u64) priv->mfunc.vhcr_dma;
1246 int num_of_reset_retries = NUM_OF_RESET_RETRIES;
1247 int ret_from_reset = 0;
1248 u32 slave_read;
1249 u32 cmd_channel_ver;
1250
f3d4c89e 1251 mutex_lock(&priv->cmd.slave_cmd_mutex);
ab9c17a0
JM		 1252 priv->cmd.max_cmds = 1;
1253 mlx4_warn(dev, "Sending reset\n");
1254 ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
1255 MLX4_COMM_TIME);
1256 /* if we are in the middle of flr the slave will try
1257 * NUM_OF_RESET_RETRIES times before leaving.*/
1258 if (ret_from_reset) {
1259 if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) {
1260 msleep(SLEEP_TIME_IN_RESET);
1261 while (ret_from_reset && num_of_reset_retries) {
1262 mlx4_warn(dev, "slave is currently in the"
1263 "middle of FLR. retrying..."
1264 "(try num:%d)\n",
1265 (NUM_OF_RESET_RETRIES -
1266 num_of_reset_retries + 1));
1267 ret_from_reset =
1268 mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET,
1269 0, MLX4_COMM_TIME);
1270 num_of_reset_retries = num_of_reset_retries - 1;
1271 }
1272 } else
1273 goto err;
1274 }
1275
1276 /* check the driver version - the slave I/F revision
1277 * must match the master's */
1278 slave_read = swab32(readl(&priv->mfunc.comm->slave_read));
1279 cmd_channel_ver = mlx4_comm_get_version();
1280
1281 if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) !=
1282 MLX4_COMM_GET_IF_REV(slave_read)) {
1283 mlx4_err(dev, "slave driver version is not supported"
1284 " by the master\n");
1285 goto err;
1286 }
1287
1288 mlx4_warn(dev, "Sending vhcr0\n");
1289 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48,
1290 MLX4_COMM_TIME))
1291 goto err;
1292 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32,
1293 MLX4_COMM_TIME))
1294 goto err;
1295 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16,
1296 MLX4_COMM_TIME))
1297 goto err;
1298 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma, MLX4_COMM_TIME))
1299 goto err;
f3d4c89e
RD		 1300
1301 mutex_unlock(&priv->cmd.slave_cmd_mutex);
ab9c17a0
JM		 1302 return 0;
1303
1304err:
1305 mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, 0);
f3d4c89e 1306 mutex_unlock(&priv->cmd.slave_cmd_mutex);
ab9c17a0 1307 return -EIO;
225c7b1f
RD		 1308}
1309
6634961c
JM		 1310static void mlx4_parav_master_pf_caps(struct mlx4_dev *dev)
1311{
1312 int i;
1313
1314 for (i = 1; i <= dev->caps.num_ports; i++) {
1315 dev->caps.gid_table_len[i] = 1;
1316 dev->caps.pkey_table_len[i] =
1317 dev->phys_caps.pkey_phys_table_len[i] - 1;
1318 }
1319}
1320
3c439b55
JM		 1321static int choose_log_fs_mgm_entry_size(int qp_per_entry)
1322{
1323 int i = MLX4_MIN_MGM_LOG_ENTRY_SIZE;
1324
1325 for (i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE;
1326 i++) {
1327 if (qp_per_entry <= 4 * ((1 << i) / 16 - 2))
1328 break;
1329 }
1330
1331 return (i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE) ? i : -1;
1332}
1333
7b8157be
JM		 1334static void choose_steering_mode(struct mlx4_dev *dev,
1335 struct mlx4_dev_cap *dev_cap)
1336{
3c439b55
JM		 1337 if (mlx4_log_num_mgm_entry_size == -1 &&
1338 dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_FS_EN &&
7b8157be 1339 (!mlx4_is_mfunc(dev) ||
3c439b55
JM		 1340 (dev_cap->fs_max_num_qp_per_entry >= (num_vfs + 1))) &&
1341 choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry) >=
1342 MLX4_MIN_MGM_LOG_ENTRY_SIZE) {
1343 dev->oper_log_mgm_entry_size =
1344 choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry);
7b8157be
JM		 1345 dev->caps.steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
1346 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
1347 dev->caps.fs_log_max_ucast_qp_range_size =
1348 dev_cap->fs_log_max_ucast_qp_range_size;
1349 } else {
1350 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER &&
1351 dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
1352 dev->caps.steering_mode = MLX4_STEERING_MODE_B0;
1353 else {
1354 dev->caps.steering_mode = MLX4_STEERING_MODE_A0;
1355
1356 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER ||
1357 dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
1358 mlx4_warn(dev, "Must have both UC_STEER and MC_STEER flags "
1359 "set to use B0 steering. Falling back to A0 steering mode.\n");
1360 }
3c439b55
JM		 1361 dev->oper_log_mgm_entry_size =
1362 mlx4_log_num_mgm_entry_size > 0 ?
1363 mlx4_log_num_mgm_entry_size :
1364 MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
7b8157be
JM		 1365 dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev);
1366 }
3c439b55
JM		 1367 mlx4_dbg(dev, "Steering mode is: %s, oper_log_mgm_entry_size = %d, "
1368 "modparam log_num_mgm_entry_size = %d\n",
1369 mlx4_steering_mode_str(dev->caps.steering_mode),
1370 dev->oper_log_mgm_entry_size,
1371 mlx4_log_num_mgm_entry_size);
7b8157be
JM		 1372}
1373
3d73c288 1374static int mlx4_init_hca(struct mlx4_dev *dev)
225c7b1f
RD		 1375{
1376 struct mlx4_priv *priv = mlx4_priv(dev);
1377 struct mlx4_adapter adapter;
1378 struct mlx4_dev_cap dev_cap;
2d928651 1379 struct mlx4_mod_stat_cfg mlx4_cfg;
225c7b1f
RD		 1380 struct mlx4_profile profile;
1381 struct mlx4_init_hca_param init_hca;
1382 u64 icm_size;
1383 int err;
1384
ab9c17a0
JM		 1385 if (!mlx4_is_slave(dev)) {
1386 err = mlx4_QUERY_FW(dev);
1387 if (err) {
1388 if (err == -EACCES)
1389 mlx4_info(dev, "non-primary physical function, skipping.\n");
1390 else
1391 mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
bef772eb 1392 return err;
ab9c17a0 1393 }
225c7b1f 1394
ab9c17a0
JM		 1395 err = mlx4_load_fw(dev);
1396 if (err) {
1397 mlx4_err(dev, "Failed to start FW, aborting.\n");
bef772eb 1398 return err;
ab9c17a0 1399 }
225c7b1f 1400
ab9c17a0
JM		 1401 mlx4_cfg.log_pg_sz_m = 1;
1402 mlx4_cfg.log_pg_sz = 0;
1403 err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
1404 if (err)
1405 mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
2d928651 1406
ab9c17a0
JM		 1407 err = mlx4_dev_cap(dev, &dev_cap);
1408 if (err) {
1409 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
1410 goto err_stop_fw;
1411 }
225c7b1f 1412
7b8157be
JM		 1413 choose_steering_mode(dev, &dev_cap);
1414
6634961c
JM		 1415 if (mlx4_is_master(dev))
1416 mlx4_parav_master_pf_caps(dev);
1417
0ff1fb65
HHZ		 1418 priv->fs_hash_mode = MLX4_FS_L2_HASH;
1419
1420 switch (priv->fs_hash_mode) {
1421 case MLX4_FS_L2_HASH:
1422 init_hca.fs_hash_enable_bits = 0;
1423 break;
1424
1425 case MLX4_FS_L2_L3_L4_HASH:
1426 /* Enable flow steering with
1427 * udp unicast and tcp unicast
1428 */
1429 init_hca.fs_hash_enable_bits =
1430 MLX4_FS_UDP_UC_EN | MLX4_FS_TCP_UC_EN;
1431 break;
1432 }
1433
ab9c17a0 1434 profile = default_profile;
0ff1fb65
HHZ		 1435 if (dev->caps.steering_mode ==
1436 MLX4_STEERING_MODE_DEVICE_MANAGED)
1437 profile.num_mcg = MLX4_FS_NUM_MCG;
225c7b1f 1438
ab9c17a0
JM		 1439 icm_size = mlx4_make_profile(dev, &profile, &dev_cap,
1440 &init_hca);
1441 if ((long long) icm_size < 0) {
1442 err = icm_size;
1443 goto err_stop_fw;
1444 }
225c7b1f 1445
a5bbe892
EC		 1446 dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
1447
ab9c17a0
JM		 1448 init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
1449 init_hca.uar_page_sz = PAGE_SHIFT - 12;
c1b43dca 1450
ab9c17a0
JM		 1451 err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
1452 if (err)
1453 goto err_stop_fw;
225c7b1f 1454
ab9c17a0
JM		 1455 err = mlx4_INIT_HCA(dev, &init_hca);
1456 if (err) {
1457 mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
1458 goto err_free_icm;
1459 }
1460 } else {
1461 err = mlx4_init_slave(dev);
1462 if (err) {
1463 mlx4_err(dev, "Failed to initialize slave\n");
bef772eb 1464 return err;
ab9c17a0 1465 }
225c7b1f 1466
ab9c17a0
JM		 1467 err = mlx4_slave_cap(dev);
1468 if (err) {
1469 mlx4_err(dev, "Failed to obtain slave caps\n");
1470 goto err_close;
1471 }
225c7b1f
RD		 1472 }
1473
ab9c17a0
JM		 1474 if (map_bf_area(dev))
1475 mlx4_dbg(dev, "Failed to map blue flame area\n");
1476
1477 /*Only the master set the ports, all the rest got it from it.*/
1478 if (!mlx4_is_slave(dev))
1479 mlx4_set_port_mask(dev);
1480
225c7b1f
RD		 1481 err = mlx4_QUERY_ADAPTER(dev, &adapter);
1482 if (err) {
1483 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
bef772eb 1484 goto unmap_bf;
225c7b1f
RD		 1485 }
1486
1487 priv->eq_table.inta_pin = adapter.inta_pin;
cd9281d8 1488 memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
225c7b1f
RD		 1489
1490 return 0;
1491
bef772eb
AY		 1492unmap_bf:
1493 unmap_bf_area(dev);
1494
225c7b1f 1495err_close:
41929ed2
DB		 1496 if (mlx4_is_slave(dev))
1497 mlx4_slave_exit(dev);
1498 else
1499 mlx4_CLOSE_HCA(dev, 0);
225c7b1f
RD		 1500
1501err_free_icm:
ab9c17a0
JM		 1502 if (!mlx4_is_slave(dev))
1503 mlx4_free_icms(dev);
225c7b1f
RD		 1504
1505err_stop_fw:
ab9c17a0
JM		 1506 if (!mlx4_is_slave(dev)) {
1507 mlx4_UNMAP_FA(dev);
1508 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
1509 }
225c7b1f
RD		 1510 return err;
1511}
1512
f2a3f6a3
OG		 1513static int mlx4_init_counters_table(struct mlx4_dev *dev)
1514{
1515 struct mlx4_priv *priv = mlx4_priv(dev);
1516 int nent;
1517
1518 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
1519 return -ENOENT;
1520
1521 nent = dev->caps.max_counters;
1522 return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
1523}
1524
1525static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
1526{
1527 mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
1528}
1529
ba062d52 1530int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
f2a3f6a3
OG		 1531{
1532 struct mlx4_priv *priv = mlx4_priv(dev);
1533
1534 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
1535 return -ENOENT;
1536
1537 *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
1538 if (*idx == -1)
1539 return -ENOMEM;
1540
1541 return 0;
1542}
ba062d52
JM		 1543
1544int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
1545{
1546 u64 out_param;
1547 int err;
1548
1549 if (mlx4_is_mfunc(dev)) {
1550 err = mlx4_cmd_imm(dev, 0, &out_param, RES_COUNTER,
1551 RES_OP_RESERVE, MLX4_CMD_ALLOC_RES,
1552 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
1553 if (!err)
1554 *idx = get_param_l(&out_param);
1555
1556 return err;
1557 }
1558 return __mlx4_counter_alloc(dev, idx);
1559}
f2a3f6a3
OG		 1560EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
1561
ba062d52 1562void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
f2a3f6a3
OG		 1563{
1564 mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx);
1565 return;
1566}
ba062d52
JM		 1567
1568void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
1569{
1570 u64 in_param;
1571
1572 if (mlx4_is_mfunc(dev)) {
1573 set_param_l(&in_param, idx);
1574 mlx4_cmd(dev, in_param, RES_COUNTER, RES_OP_RESERVE,
1575 MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
1576 MLX4_CMD_WRAPPED);
1577 return;
1578 }
1579 __mlx4_counter_free(dev, idx);
1580}
f2a3f6a3
OG		 1581EXPORT_SYMBOL_GPL(mlx4_counter_free);
1582
3d73c288 1583static int mlx4_setup_hca(struct mlx4_dev *dev)
225c7b1f
RD		 1584{
1585 struct mlx4_priv *priv = mlx4_priv(dev);
1586 int err;
7ff93f8b 1587 int port;
9a5aa622 1588 __be32 ib_port_default_caps;
225c7b1f 1589
225c7b1f
RD		 1590 err = mlx4_init_uar_table(dev);
1591 if (err) {
1592 mlx4_err(dev, "Failed to initialize "
1593 "user access region table, aborting.\n");
1594 return err;
1595 }
1596
1597 err = mlx4_uar_alloc(dev, &priv->driver_uar);
1598 if (err) {
1599 mlx4_err(dev, "Failed to allocate driver access region, "
1600 "aborting.\n");
1601 goto err_uar_table_free;
1602 }
1603
4979d18f 1604 priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
225c7b1f
RD		 1605 if (!priv->kar) {
1606 mlx4_err(dev, "Couldn't map kernel access region, "
1607 "aborting.\n");
1608 err = -ENOMEM;
1609 goto err_uar_free;
1610 }
1611
1612 err = mlx4_init_pd_table(dev);
1613 if (err) {
1614 mlx4_err(dev, "Failed to initialize "
1615 "protection domain table, aborting.\n");
1616 goto err_kar_unmap;
1617 }
1618
012a8ff5
SH		 1619 err = mlx4_init_xrcd_table(dev);
1620 if (err) {
1621 mlx4_err(dev, "Failed to initialize "
1622 "reliable connection domain table, aborting.\n");
1623 goto err_pd_table_free;
1624 }
1625
225c7b1f
RD		 1626 err = mlx4_init_mr_table(dev);
1627 if (err) {
1628 mlx4_err(dev, "Failed to initialize "
1629 "memory region table, aborting.\n");
012a8ff5 1630 goto err_xrcd_table_free;
225c7b1f
RD		 1631 }
1632
225c7b1f
RD		 1633 err = mlx4_init_eq_table(dev);
1634 if (err) {
1635 mlx4_err(dev, "Failed to initialize "
1636 "event queue table, aborting.\n");
ee49bd93 1637 goto err_mr_table_free;
225c7b1f
RD		 1638 }
1639
1640 err = mlx4_cmd_use_events(dev);
1641 if (err) {
1642 mlx4_err(dev, "Failed to switch to event-driven "
1643 "firmware commands, aborting.\n");
1644 goto err_eq_table_free;
1645 }
1646
1647 err = mlx4_NOP(dev);
1648 if (err) {
08fb1055
MT		 1649 if (dev->flags & MLX4_FLAG_MSI_X) {
1650 mlx4_warn(dev, "NOP command failed to generate MSI-X "
1651 "interrupt IRQ %d).\n",
b8dd786f 1652 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
08fb1055
MT		 1653 mlx4_warn(dev, "Trying again without MSI-X.\n");
1654 } else {
1655 mlx4_err(dev, "NOP command failed to generate interrupt "
1656 "(IRQ %d), aborting.\n",
b8dd786f 1657 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
225c7b1f 1658 mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
08fb1055 1659 }
225c7b1f
RD		 1660
1661 goto err_cmd_poll;
1662 }
1663
1664 mlx4_dbg(dev, "NOP command IRQ test passed\n");
1665
1666 err = mlx4_init_cq_table(dev);
1667 if (err) {
1668 mlx4_err(dev, "Failed to initialize "
1669 "completion queue table, aborting.\n");
1670 goto err_cmd_poll;
1671 }
1672
1673 err = mlx4_init_srq_table(dev);
1674 if (err) {
1675 mlx4_err(dev, "Failed to initialize "
1676 "shared receive queue table, aborting.\n");
1677 goto err_cq_table_free;
1678 }
1679
1680 err = mlx4_init_qp_table(dev);
1681 if (err) {
1682 mlx4_err(dev, "Failed to initialize "
1683 "queue pair table, aborting.\n");
1684 goto err_srq_table_free;
1685 }
1686
ab9c17a0
JM		 1687 if (!mlx4_is_slave(dev)) {
1688 err = mlx4_init_mcg_table(dev);
1689 if (err) {
1690 mlx4_err(dev, "Failed to initialize "
1691 "multicast group table, aborting.\n");
1692 goto err_qp_table_free;
1693 }
225c7b1f
RD		 1694 }
1695
f2a3f6a3
OG		 1696 err = mlx4_init_counters_table(dev);
1697 if (err && err != -ENOENT) {
1698 mlx4_err(dev, "Failed to initialize counters table, aborting.\n");
ab9c17a0 1699 goto err_mcg_table_free;
f2a3f6a3
OG		 1700 }
1701
ab9c17a0
JM		 1702 if (!mlx4_is_slave(dev)) {
1703 for (port = 1; port <= dev->caps.num_ports; port++) {
ab9c17a0
JM		 1704 ib_port_default_caps = 0;
1705 err = mlx4_get_port_ib_caps(dev, port,
1706 &ib_port_default_caps);
1707 if (err)
1708 mlx4_warn(dev, "failed to get port %d default "
1709 "ib capabilities (%d). Continuing "
1710 "with caps = 0\n", port, err);
1711 dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
1712
2aca1172
JM		 1713 /* initialize per-slave default ib port capabilities */
1714 if (mlx4_is_master(dev)) {
1715 int i;
1716 for (i = 0; i < dev->num_slaves; i++) {
1717 if (i == mlx4_master_func_num(dev))
1718 continue;
1719 priv->mfunc.master.slave_state[i].ib_cap_mask[port] =
1720 ib_port_default_caps;
1721 }
1722 }
1723
096335b3
OG		 1724 if (mlx4_is_mfunc(dev))
1725 dev->caps.port_ib_mtu[port] = IB_MTU_2048;
1726 else
1727 dev->caps.port_ib_mtu[port] = IB_MTU_4096;
97285b78 1728
6634961c
JM		 1729 err = mlx4_SET_PORT(dev, port, mlx4_is_master(dev) ?
1730 dev->caps.pkey_table_len[port] : -1);
ab9c17a0
JM		 1731 if (err) {
1732 mlx4_err(dev, "Failed to set port %d, aborting\n",
1733 port);
1734 goto err_counters_table_free;
1735 }
7ff93f8b
YP		 1736 }
1737 }
1738
225c7b1f
RD		 1739 return 0;
1740
f2a3f6a3
OG		 1741err_counters_table_free:
1742 mlx4_cleanup_counters_table(dev);
1743
ab9c17a0
JM		 1744err_mcg_table_free:
1745 mlx4_cleanup_mcg_table(dev);
1746
225c7b1f
RD		 1747err_qp_table_free:
1748 mlx4_cleanup_qp_table(dev);
1749
1750err_srq_table_free:
1751 mlx4_cleanup_srq_table(dev);
1752
1753err_cq_table_free:
1754 mlx4_cleanup_cq_table(dev);
1755
1756err_cmd_poll:
1757 mlx4_cmd_use_polling(dev);
1758
1759err_eq_table_free:
1760 mlx4_cleanup_eq_table(dev);
1761
ee49bd93 1762err_mr_table_free:
225c7b1f
RD		 1763 mlx4_cleanup_mr_table(dev);
1764
012a8ff5
SH		 1765err_xrcd_table_free:
1766 mlx4_cleanup_xrcd_table(dev);
1767
225c7b1f
RD		 1768err_pd_table_free:
1769 mlx4_cleanup_pd_table(dev);
1770
1771err_kar_unmap:
1772 iounmap(priv->kar);
1773
1774err_uar_free:
1775 mlx4_uar_free(dev, &priv->driver_uar);
1776
1777err_uar_table_free:
1778 mlx4_cleanup_uar_table(dev);
1779 return err;
1780}
1781
e8f9b2ed 1782static void mlx4_enable_msi_x(struct mlx4_dev *dev)
225c7b1f
RD		 1783{
1784 struct mlx4_priv *priv = mlx4_priv(dev);
b8dd786f 1785 struct msix_entry *entries;
0b7ca5a9 1786 int nreq = min_t(int, dev->caps.num_ports *
90b1ebe7
YM		 1787 min_t(int, netif_get_num_default_rss_queues() + 1,
1788 MAX_MSIX_P_PORT) + MSIX_LEGACY_SZ, MAX_MSIX);
225c7b1f
RD		 1789 int err;
1790 int i;
1791
1792 if (msi_x) {
ab9c17a0
JM		 1793 /* In multifunction mode each function gets 2 msi-X vectors
1794 * one for data path completions anf the other for asynch events
1795 * or command completions */
1796 if (mlx4_is_mfunc(dev)) {
1797 nreq = 2;
1798 } else {
1799 nreq = min_t(int, dev->caps.num_eqs -
1800 dev->caps.reserved_eqs, nreq);
1801 }
1802
b8dd786f
YP		 1803 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
1804 if (!entries)
1805 goto no_msi;
1806
1807 for (i = 0; i < nreq; ++i)
225c7b1f
RD		 1808 entries[i].entry = i;
1809
b8dd786f
YP		 1810 retry:
1811 err = pci_enable_msix(dev->pdev, entries, nreq);
225c7b1f 1812 if (err) {
b8dd786f
YP		 1813 /* Try again if at least 2 vectors are available */
1814 if (err > 1) {
1815 mlx4_info(dev, "Requested %d vectors, "
1816 "but only %d MSI-X vectors available, "
1817 "trying again\n", nreq, err);
1818 nreq = err;
1819 goto retry;
1820 }
5bf0da7d 1821 kfree(entries);
225c7b1f
RD		 1822 goto no_msi;
1823 }
1824
0b7ca5a9
YP		 1825 if (nreq <
1826 MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
1827 /*Working in legacy mode , all EQ's shared*/
1828 dev->caps.comp_pool = 0;
1829 dev->caps.num_comp_vectors = nreq - 1;
1830 } else {
1831 dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ;
1832 dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
1833 }
b8dd786f 1834 for (i = 0; i < nreq; ++i)
225c7b1f
RD		 1835 priv->eq_table.eq[i].irq = entries[i].vector;
1836
1837 dev->flags |= MLX4_FLAG_MSI_X;
b8dd786f
YP		 1838
1839 kfree(entries);
225c7b1f
RD		 1840 return;
1841 }
1842
1843no_msi:
b8dd786f 1844 dev->caps.num_comp_vectors = 1;
0b7ca5a9 1845 dev->caps.comp_pool = 0;
b8dd786f
YP		 1846
1847 for (i = 0; i < 2; ++i)
225c7b1f
RD		 1848 priv->eq_table.eq[i].irq = dev->pdev->irq;
1849}
1850
7ff93f8b 1851static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
2a2336f8
YP		 1852{
1853 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
7ff93f8b 1854 int err = 0;
2a2336f8
YP		 1855
1856 info->dev = dev;
1857 info->port = port;
ab9c17a0
JM		 1858 if (!mlx4_is_slave(dev)) {
1859 INIT_RADIX_TREE(&info->mac_tree, GFP_KERNEL);
1860 mlx4_init_mac_table(dev, &info->mac_table);
1861 mlx4_init_vlan_table(dev, &info->vlan_table);
1862 info->base_qpn =
1863 dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] +
06fa0a88 1864 (port - 1) * (1 << log_num_mac);
ab9c17a0 1865 }
7ff93f8b
YP		 1866
1867 sprintf(info->dev_name, "mlx4_port%d", port);
1868 info->port_attr.attr.name = info->dev_name;
ab9c17a0
JM		 1869 if (mlx4_is_mfunc(dev))
1870 info->port_attr.attr.mode = S_IRUGO;
1871 else {
1872 info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
1873 info->port_attr.store = set_port_type;
1874 }
7ff93f8b 1875 info->port_attr.show = show_port_type;
3691c964 1876 sysfs_attr_init(&info->port_attr.attr);
7ff93f8b
YP		 1877
1878 err = device_create_file(&dev->pdev->dev, &info->port_attr);
1879 if (err) {
1880 mlx4_err(dev, "Failed to create file for port %d\n", port);
1881 info->port = -1;
1882 }
1883
096335b3
OG		 1884 sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port);
1885 info->port_mtu_attr.attr.name = info->dev_mtu_name;
1886 if (mlx4_is_mfunc(dev))
1887 info->port_mtu_attr.attr.mode = S_IRUGO;
1888 else {
1889 info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR;
1890 info->port_mtu_attr.store = set_port_ib_mtu;
1891 }
1892 info->port_mtu_attr.show = show_port_ib_mtu;
1893 sysfs_attr_init(&info->port_mtu_attr.attr);
1894
1895 err = device_create_file(&dev->pdev->dev, &info->port_mtu_attr);
1896 if (err) {
1897 mlx4_err(dev, "Failed to create mtu file for port %d\n", port);
1898 device_remove_file(&info->dev->pdev->dev, &info->port_attr);
1899 info->port = -1;
1900 }
1901
7ff93f8b
YP		 1902 return err;
1903}
1904
1905static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
1906{
1907 if (info->port < 0)
1908 return;
1909
1910 device_remove_file(&info->dev->pdev->dev, &info->port_attr);
096335b3 1911 device_remove_file(&info->dev->pdev->dev, &info->port_mtu_attr);
2a2336f8
YP		 1912}
1913
b12d93d6
YP		 1914static int mlx4_init_steering(struct mlx4_dev *dev)
1915{
1916 struct mlx4_priv *priv = mlx4_priv(dev);
1917 int num_entries = dev->caps.num_ports;
1918 int i, j;
1919
1920 priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
1921 if (!priv->steer)
1922 return -ENOMEM;
1923
45b51365 1924 for (i = 0; i < num_entries; i++)
b12d93d6
YP		 1925 for (j = 0; j < MLX4_NUM_STEERS; j++) {
1926 INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
1927 INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
1928 }
b12d93d6
YP		 1929 return 0;
1930}
1931
1932static void mlx4_clear_steering(struct mlx4_dev *dev)
1933{
1934 struct mlx4_priv *priv = mlx4_priv(dev);
1935 struct mlx4_steer_index *entry, *tmp_entry;
1936 struct mlx4_promisc_qp *pqp, *tmp_pqp;
1937 int num_entries = dev->caps.num_ports;
1938 int i, j;
1939
1940 for (i = 0; i < num_entries; i++) {
1941 for (j = 0; j < MLX4_NUM_STEERS; j++) {
1942 list_for_each_entry_safe(pqp, tmp_pqp,
1943 &priv->steer[i].promisc_qps[j],
1944 list) {
1945 list_del(&pqp->list);
1946 kfree(pqp);
1947 }
1948 list_for_each_entry_safe(entry, tmp_entry,
1949 &priv->steer[i].steer_entries[j],
1950 list) {
1951 list_del(&entry->list);
1952 list_for_each_entry_safe(pqp, tmp_pqp,
1953 &entry->duplicates,
1954 list) {
1955 list_del(&pqp->list);
1956 kfree(pqp);
1957 }
1958 kfree(entry);
1959 }
1960 }
1961 }
1962 kfree(priv->steer);
1963}
1964
ab9c17a0
JM		 1965static int extended_func_num(struct pci_dev *pdev)
1966{
1967 return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn);
1968}
1969
1970#define MLX4_OWNER_BASE 0x8069c
1971#define MLX4_OWNER_SIZE 4
1972
1973static int mlx4_get_ownership(struct mlx4_dev *dev)
1974{
1975 void __iomem *owner;
1976 u32 ret;
1977
57dbf29a
KSS		 1978 if (pci_channel_offline(dev->pdev))
1979 return -EIO;
1980
ab9c17a0
JM		 1981 owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
1982 MLX4_OWNER_SIZE);
1983 if (!owner) {
1984 mlx4_err(dev, "Failed to obtain ownership bit\n");
1985 return -ENOMEM;
1986 }
1987
1988 ret = readl(owner);
1989 iounmap(owner);
1990 return (int) !!ret;
1991}
1992
1993static void mlx4_free_ownership(struct mlx4_dev *dev)
1994{
1995 void __iomem *owner;
1996
57dbf29a
KSS		 1997 if (pci_channel_offline(dev->pdev))
1998 return;
1999
ab9c17a0
JM		 2000 owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
2001 MLX4_OWNER_SIZE);
2002 if (!owner) {
2003 mlx4_err(dev, "Failed to obtain ownership bit\n");
2004 return;
2005 }
2006 writel(0, owner);
2007 msleep(1000);
2008 iounmap(owner);
2009}
2010
839f1243 2011static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
225c7b1f 2012{
225c7b1f
RD		 2013 struct mlx4_priv *priv;
2014 struct mlx4_dev *dev;
2015 int err;
2a2336f8 2016 int port;
225c7b1f 2017
0a645e80 2018 pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
225c7b1f
RD		 2019
2020 err = pci_enable_device(pdev);
2021 if (err) {
2022 dev_err(&pdev->dev, "Cannot enable PCI device, "
2023 "aborting.\n");
2024 return err;
2025 }
ab9c17a0
JM		 2026 if (num_vfs > MLX4_MAX_NUM_VF) {
2027 printk(KERN_ERR "There are more VF's (%d) than allowed(%d)\n",
2028 num_vfs, MLX4_MAX_NUM_VF);
2029 return -EINVAL;
2030 }
225c7b1f 2031 /*
ab9c17a0 2032 * Check for BARs.
225c7b1f 2033 */
839f1243 2034 if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) &&
ab9c17a0
JM		 2035 !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2036 dev_err(&pdev->dev, "Missing DCS, aborting."
839f1243
RD		 2037 "(driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n",
2038 pci_dev_data, pci_resource_flags(pdev, 0));
225c7b1f
RD		 2039 err = -ENODEV;
2040 goto err_disable_pdev;
2041 }
2042 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
2043 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
2044 err = -ENODEV;
2045 goto err_disable_pdev;
2046 }
2047
a01df0fe 2048 err = pci_request_regions(pdev, DRV_NAME);
225c7b1f 2049 if (err) {
a01df0fe 2050 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
225c7b1f
RD		 2051 goto err_disable_pdev;
2052 }
2053
225c7b1f
RD		 2054 pci_set_master(pdev);
2055
6a35528a 2056 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
225c7b1f
RD		 2057 if (err) {
2058 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
284901a9 2059 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
225c7b1f
RD		 2060 if (err) {
2061 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
a01df0fe 2062 goto err_release_regions;
225c7b1f
RD		 2063 }
2064 }
6a35528a 2065 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
225c7b1f
RD		 2066 if (err) {
2067 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
2068 "consistent PCI DMA mask.\n");
284901a9 2069 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
225c7b1f
RD		 2070 if (err) {
2071 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
2072 "aborting.\n");
a01df0fe 2073 goto err_release_regions;
225c7b1f
RD		 2074 }
2075 }
2076
7f9e5c48
DD		 2077 /* Allow large DMA segments, up to the firmware limit of 1 GB */
2078 dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
2079
225c7b1f
RD		 2080 priv = kzalloc(sizeof *priv, GFP_KERNEL);
2081 if (!priv) {
2082 dev_err(&pdev->dev, "Device struct alloc failed, "
2083 "aborting.\n");
2084 err = -ENOMEM;
a01df0fe 2085 goto err_release_regions;
225c7b1f
RD		 2086 }
2087
2088 dev = &priv->dev;
2089 dev->pdev = pdev;
b581401e
RD		 2090 INIT_LIST_HEAD(&priv->ctx_list);
2091 spin_lock_init(&priv->ctx_lock);
225c7b1f 2092
7ff93f8b
YP		 2093 mutex_init(&priv->port_mutex);
2094
6296883c
YP		 2095 INIT_LIST_HEAD(&priv->pgdir_list);
2096 mutex_init(&priv->pgdir_mutex);
2097
c1b43dca
EC		 2098 INIT_LIST_HEAD(&priv->bf_list);
2099 mutex_init(&priv->bf_mutex);
2100
aca7a3ac 2101 dev->rev_id = pdev->revision;
ab9c17a0 2102 /* Detect if this device is a virtual function */
839f1243 2103 if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
ab9c17a0
JM		 2104 /* When acting as pf, we normally skip vfs unless explicitly
2105 * requested to probe them. */
2106 if (num_vfs && extended_func_num(pdev) > probe_vf) {
2107 mlx4_warn(dev, "Skipping virtual function:%d\n",
2108 extended_func_num(pdev));
2109 err = -ENODEV;
2110 goto err_free_dev;
2111 }
2112 mlx4_warn(dev, "Detected virtual function - running in slave mode\n");
2113 dev->flags |= MLX4_FLAG_SLAVE;
2114 } else {
2115 /* We reset the device and enable SRIOV only for physical
2116 * devices. Try to claim ownership on the device;
2117 * if already taken, skip -- do not allow multiple PFs */
2118 err = mlx4_get_ownership(dev);
2119 if (err) {
2120 if (err < 0)
2121 goto err_free_dev;
2122 else {
2123 mlx4_warn(dev, "Multiple PFs not yet supported."
2124 " Skipping PF.\n");
2125 err = -EINVAL;
2126 goto err_free_dev;
2127 }
2128 }
aca7a3ac 2129
ab9c17a0 2130 if (num_vfs) {
84b1f153 2131 mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", num_vfs);
ab9c17a0
JM		 2132 err = pci_enable_sriov(pdev, num_vfs);
2133 if (err) {
84b1f153
RD		 2134 mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d).\n",
2135 err);
ab9c17a0
JM		 2136 err = 0;
2137 } else {
2138 mlx4_warn(dev, "Running in master mode\n");
2139 dev->flags |= MLX4_FLAG_SRIOV |
2140 MLX4_FLAG_MASTER;
2141 dev->num_vfs = num_vfs;
2142 }
2143 }
2144
2145 /*
2146 * Now reset the HCA before we touch the PCI capabilities or
2147 * attempt a firmware command, since a boot ROM may have left
2148 * the HCA in an undefined state.
2149 */
2150 err = mlx4_reset(dev);
2151 if (err) {
2152 mlx4_err(dev, "Failed to reset HCA, aborting.\n");
2153 goto err_rel_own;
2154 }
225c7b1f
RD		 2155 }
2156
ab9c17a0 2157slave_start:
521130d1
EE		 2158 err = mlx4_cmd_init(dev);
2159 if (err) {
225c7b1f 2160 mlx4_err(dev, "Failed to init command interface, aborting.\n");
ab9c17a0
JM		 2161 goto err_sriov;
2162 }
2163
2164 /* In slave functions, the communication channel must be initialized
2165 * before posting commands. Also, init num_slaves before calling
2166 * mlx4_init_hca */
2167 if (mlx4_is_mfunc(dev)) {
2168 if (mlx4_is_master(dev))
2169 dev->num_slaves = MLX4_MAX_NUM_SLAVES;
2170 else {
2171 dev->num_slaves = 0;
2172 if (mlx4_multi_func_init(dev)) {
2173 mlx4_err(dev, "Failed to init slave mfunc"
2174 " interface, aborting.\n");
2175 goto err_cmd;
2176 }
2177 }
225c7b1f
RD		 2178 }
2179
2180 err = mlx4_init_hca(dev);
ab9c17a0
JM		 2181 if (err) {
2182 if (err == -EACCES) {
2183 /* Not primary Physical function
2184 * Running in slave mode */
2185 mlx4_cmd_cleanup(dev);
2186 dev->flags |= MLX4_FLAG_SLAVE;
2187 dev->flags &= ~MLX4_FLAG_MASTER;
2188 goto slave_start;
2189 } else
2190 goto err_mfunc;
2191 }
2192
2193 /* In master functions, the communication channel must be initialized
2194 * after obtaining its address from fw */
2195 if (mlx4_is_master(dev)) {
2196 if (mlx4_multi_func_init(dev)) {
2197 mlx4_err(dev, "Failed to init master mfunc"
2198 "interface, aborting.\n");
2199 goto err_close;
2200 }
2201 }
225c7b1f 2202
b8dd786f
YP		 2203 err = mlx4_alloc_eq_table(dev);
2204 if (err)
ab9c17a0 2205 goto err_master_mfunc;
b8dd786f 2206
0b7ca5a9 2207 priv->msix_ctl.pool_bm = 0;
730c41d5 2208 mutex_init(&priv->msix_ctl.pool_lock);
0b7ca5a9 2209
08fb1055 2210 mlx4_enable_msi_x(dev);
ab9c17a0
JM		 2211 if ((mlx4_is_mfunc(dev)) &&
2212 !(dev->flags & MLX4_FLAG_MSI_X)) {
2213 mlx4_err(dev, "INTx is not supported in multi-function mode."
2214 " aborting.\n");
b12d93d6 2215 goto err_free_eq;
ab9c17a0
JM		 2216 }
2217
2218 if (!mlx4_is_slave(dev)) {
2219 err = mlx4_init_steering(dev);
2220 if (err)
2221 goto err_free_eq;
2222 }
b12d93d6 2223
225c7b1f 2224 err = mlx4_setup_hca(dev);
ab9c17a0
JM		 2225 if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) &&
2226 !mlx4_is_mfunc(dev)) {
08fb1055 2227 dev->flags &= ~MLX4_FLAG_MSI_X;
9858d2d1
YP		 2228 dev->caps.num_comp_vectors = 1;
2229 dev->caps.comp_pool = 0;
08fb1055
MT		 2230 pci_disable_msix(pdev);
2231 err = mlx4_setup_hca(dev);
2232 }
2233
225c7b1f 2234 if (err)
b12d93d6 2235 goto err_steer;
225c7b1f 2236
7ff93f8b
YP		 2237 for (port = 1; port <= dev->caps.num_ports; port++) {
2238 err = mlx4_init_port_info(dev, port);
2239 if (err)
2240 goto err_port;
2241 }
2a2336f8 2242
225c7b1f
RD		 2243 err = mlx4_register_device(dev);
2244 if (err)
7ff93f8b 2245 goto err_port;
225c7b1f 2246
27bf91d6
YP		 2247 mlx4_sense_init(dev);
2248 mlx4_start_sense(dev);
2249
839f1243 2250 priv->pci_dev_data = pci_dev_data;
225c7b1f
RD		 2251 pci_set_drvdata(pdev, dev);
2252
2253 return 0;
2254
7ff93f8b 2255err_port:
b4f77264 2256 for (--port; port >= 1; --port)
7ff93f8b
YP		 2257 mlx4_cleanup_port_info(&priv->port[port]);
2258
f2a3f6a3 2259 mlx4_cleanup_counters_table(dev);
225c7b1f
RD		 2260 mlx4_cleanup_mcg_table(dev);
2261 mlx4_cleanup_qp_table(dev);
2262 mlx4_cleanup_srq_table(dev);
2263 mlx4_cleanup_cq_table(dev);
2264 mlx4_cmd_use_polling(dev);
2265 mlx4_cleanup_eq_table(dev);
225c7b1f 2266 mlx4_cleanup_mr_table(dev);
012a8ff5 2267 mlx4_cleanup_xrcd_table(dev);
225c7b1f
RD		 2268 mlx4_cleanup_pd_table(dev);
2269 mlx4_cleanup_uar_table(dev);
2270
b12d93d6 2271err_steer:
ab9c17a0
JM		 2272 if (!mlx4_is_slave(dev))
2273 mlx4_clear_steering(dev);
b12d93d6 2274
b8dd786f
YP		 2275err_free_eq:
2276 mlx4_free_eq_table(dev);
2277
ab9c17a0
JM		 2278err_master_mfunc:
2279 if (mlx4_is_master(dev))
2280 mlx4_multi_func_cleanup(dev);
2281
225c7b1f 2282err_close:
08fb1055
MT		 2283 if (dev->flags & MLX4_FLAG_MSI_X)
2284 pci_disable_msix(pdev);
2285
225c7b1f
RD		 2286 mlx4_close_hca(dev);
2287
ab9c17a0
JM		 2288err_mfunc:
2289 if (mlx4_is_slave(dev))
2290 mlx4_multi_func_cleanup(dev);
2291
225c7b1f
RD		 2292err_cmd:
2293 mlx4_cmd_cleanup(dev);
2294
ab9c17a0 2295err_sriov:
681372a7 2296 if (dev->flags & MLX4_FLAG_SRIOV)
ab9c17a0
JM		 2297 pci_disable_sriov(pdev);
2298
2299err_rel_own:
2300 if (!mlx4_is_slave(dev))
2301 mlx4_free_ownership(dev);
2302
225c7b1f 2303err_free_dev:
225c7b1f
RD		 2304 kfree(priv);
2305
a01df0fe
RD		 2306err_release_regions:
2307 pci_release_regions(pdev);
225c7b1f
RD		 2308
2309err_disable_pdev:
2310 pci_disable_device(pdev);
2311 pci_set_drvdata(pdev, NULL);
2312 return err;
2313}
2314
1dd06ae8 2315static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
3d73c288 2316{
0a645e80 2317 printk_once(KERN_INFO "%s", mlx4_version);
3d73c288 2318
839f1243 2319 return __mlx4_init_one(pdev, id->driver_data);
3d73c288
RD		 2320}
2321
2322static void mlx4_remove_one(struct pci_dev *pdev)
225c7b1f
RD		 2323{
2324 struct mlx4_dev *dev = pci_get_drvdata(pdev);
2325 struct mlx4_priv *priv = mlx4_priv(dev);
2326 int p;
2327
2328 if (dev) {
ab9c17a0
JM		 2329 /* in SRIOV it is not allowed to unload the pf's
2330 * driver while there are alive vf's */
2331 if (mlx4_is_master(dev)) {
2332 if (mlx4_how_many_lives_vf(dev))
2333 printk(KERN_ERR "Removing PF when there are assigned VF's !!!\n");
2334 }
27bf91d6 2335 mlx4_stop_sense(dev);
225c7b1f
RD		 2336 mlx4_unregister_device(dev);
2337
7ff93f8b
YP		 2338 for (p = 1; p <= dev->caps.num_ports; p++) {
2339 mlx4_cleanup_port_info(&priv->port[p]);
225c7b1f 2340 mlx4_CLOSE_PORT(dev, p);
7ff93f8b 2341 }
225c7b1f 2342
b8924951
JM		 2343 if (mlx4_is_master(dev))
2344 mlx4_free_resource_tracker(dev,
2345 RES_TR_FREE_SLAVES_ONLY);
2346
f2a3f6a3 2347 mlx4_cleanup_counters_table(dev);
225c7b1f
RD		 2348 mlx4_cleanup_mcg_table(dev);
2349 mlx4_cleanup_qp_table(dev);
2350 mlx4_cleanup_srq_table(dev);
2351 mlx4_cleanup_cq_table(dev);
2352 mlx4_cmd_use_polling(dev);
2353 mlx4_cleanup_eq_table(dev);
225c7b1f 2354 mlx4_cleanup_mr_table(dev);
012a8ff5 2355 mlx4_cleanup_xrcd_table(dev);
225c7b1f
RD		 2356 mlx4_cleanup_pd_table(dev);
2357
ab9c17a0 2358 if (mlx4_is_master(dev))
b8924951
JM		 2359 mlx4_free_resource_tracker(dev,
2360 RES_TR_FREE_STRUCTS_ONLY);
ab9c17a0 2361
225c7b1f
RD		 2362 iounmap(priv->kar);
2363 mlx4_uar_free(dev, &priv->driver_uar);
2364 mlx4_cleanup_uar_table(dev);
ab9c17a0
JM		 2365 if (!mlx4_is_slave(dev))
2366 mlx4_clear_steering(dev);
b8dd786f 2367 mlx4_free_eq_table(dev);
ab9c17a0
JM		 2368 if (mlx4_is_master(dev))
2369 mlx4_multi_func_cleanup(dev);
225c7b1f 2370 mlx4_close_hca(dev);
ab9c17a0
JM		 2371 if (mlx4_is_slave(dev))
2372 mlx4_multi_func_cleanup(dev);
225c7b1f
RD		 2373 mlx4_cmd_cleanup(dev);
2374
2375 if (dev->flags & MLX4_FLAG_MSI_X)
2376 pci_disable_msix(pdev);
681372a7 2377 if (dev->flags & MLX4_FLAG_SRIOV) {
84b1f153 2378 mlx4_warn(dev, "Disabling SR-IOV\n");
ab9c17a0
JM		 2379 pci_disable_sriov(pdev);
2380 }
225c7b1f 2381
ab9c17a0
JM		 2382 if (!mlx4_is_slave(dev))
2383 mlx4_free_ownership(dev);
47605df9
JM		 2384
2385 kfree(dev->caps.qp0_tunnel);
2386 kfree(dev->caps.qp0_proxy);
2387 kfree(dev->caps.qp1_tunnel);
2388 kfree(dev->caps.qp1_proxy);
2389
225c7b1f 2390 kfree(priv);
a01df0fe 2391 pci_release_regions(pdev);
225c7b1f
RD		 2392 pci_disable_device(pdev);
2393 pci_set_drvdata(pdev, NULL);
2394 }
2395}
2396
ee49bd93
JM		 2397int mlx4_restart_one(struct pci_dev *pdev)
2398{
839f1243
RD		 2399 struct mlx4_dev *dev = pci_get_drvdata(pdev);
2400 struct mlx4_priv *priv = mlx4_priv(dev);
2401 int pci_dev_data;
2402
2403 pci_dev_data = priv->pci_dev_data;
ee49bd93 2404 mlx4_remove_one(pdev);
839f1243 2405 return __mlx4_init_one(pdev, pci_dev_data);
ee49bd93
JM		 2406}
2407
a3aa1884 2408static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
ab9c17a0 2409 /* MT25408 "Hermon" SDR */
ca3e57a5 2410 { PCI_VDEVICE(MELLANOX, 0x6340), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2411 /* MT25408 "Hermon" DDR */
ca3e57a5 2412 { PCI_VDEVICE(MELLANOX, 0x634a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2413 /* MT25408 "Hermon" QDR */
ca3e57a5 2414 { PCI_VDEVICE(MELLANOX, 0x6354), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2415 /* MT25408 "Hermon" DDR PCIe gen2 */
ca3e57a5 2416 { PCI_VDEVICE(MELLANOX, 0x6732), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2417 /* MT25408 "Hermon" QDR PCIe gen2 */
ca3e57a5 2418 { PCI_VDEVICE(MELLANOX, 0x673c), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2419 /* MT25408 "Hermon" EN 10GigE */
ca3e57a5 2420 { PCI_VDEVICE(MELLANOX, 0x6368), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2421 /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
ca3e57a5 2422 { PCI_VDEVICE(MELLANOX, 0x6750), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2423 /* MT25458 ConnectX EN 10GBASE-T 10GigE */
ca3e57a5 2424 { PCI_VDEVICE(MELLANOX, 0x6372), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2425 /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
ca3e57a5 2426 { PCI_VDEVICE(MELLANOX, 0x675a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2427 /* MT26468 ConnectX EN 10GigE PCIe gen2*/
ca3e57a5 2428 { PCI_VDEVICE(MELLANOX, 0x6764), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2429 /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
ca3e57a5 2430 { PCI_VDEVICE(MELLANOX, 0x6746), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2431 /* MT26478 ConnectX2 40GigE PCIe gen2 */
ca3e57a5 2432 { PCI_VDEVICE(MELLANOX, 0x676e), MLX4_PCI_DEV_FORCE_SENSE_PORT },
ab9c17a0 2433 /* MT25400 Family [ConnectX-2 Virtual Function] */
839f1243 2434 { PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF },
ab9c17a0
JM		 2435 /* MT27500 Family [ConnectX-3] */
2436 { PCI_VDEVICE(MELLANOX, 0x1003), 0 },
2437 /* MT27500 Family [ConnectX-3 Virtual Function] */
839f1243 2438 { PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF },
ab9c17a0
JM		 2439 { PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
2440 { PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
2441 { PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
2442 { PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */
2443 { PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */
2444 { PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */
2445 { PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */
2446 { PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */
2447 { PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */
2448 { PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */
2449 { PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */
2450 { PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */
225c7b1f
RD		 2451 { 0, }
2452};
2453
2454MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
2455
57dbf29a
KSS		 2456static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
2457 pci_channel_state_t state)
2458{
2459 mlx4_remove_one(pdev);
2460
2461 return state == pci_channel_io_perm_failure ?
2462 PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
2463}
2464
2465static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
2466{
839f1243 2467 int ret = __mlx4_init_one(pdev, 0);
57dbf29a
KSS		 2468
2469 return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
2470}
2471
3646f0e5 2472static const struct pci_error_handlers mlx4_err_handler = {
57dbf29a
KSS		 2473 .error_detected = mlx4_pci_err_detected,
2474 .slot_reset = mlx4_pci_slot_reset,
2475};
2476
225c7b1f
RD		 2477static struct pci_driver mlx4_driver = {
2478 .name = DRV_NAME,
2479 .id_table = mlx4_pci_table,
2480 .probe = mlx4_init_one,
f57e6848 2481 .remove = mlx4_remove_one,
57dbf29a 2482 .err_handler = &mlx4_err_handler,
225c7b1f
RD		 2483};
2484
7ff93f8b
YP		 2485static int __init mlx4_verify_params(void)
2486{
2487 if ((log_num_mac < 0) || (log_num_mac > 7)) {
0a645e80 2488 pr_warning("mlx4_core: bad num_mac: %d\n", log_num_mac);
7ff93f8b
YP		 2489 return -1;
2490 }
2491
cb29688a
OG		 2492 if (log_num_vlan != 0)
2493 pr_warning("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
2494 MLX4_LOG_NUM_VLANS);
7ff93f8b 2495
0498628f 2496 if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
0a645e80 2497 pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);
ab6bf42e
EC		 2498 return -1;
2499 }
2500
ab9c17a0
JM		 2501 /* Check if module param for ports type has legal combination */
2502 if (port_type_array[0] == false && port_type_array[1] == true) {
2503 printk(KERN_WARNING "Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n");
2504 port_type_array[0] = true;
2505 }
2506
3c439b55
JM		 2507 if (mlx4_log_num_mgm_entry_size != -1 &&
2508 (mlx4_log_num_mgm_entry_size < MLX4_MIN_MGM_LOG_ENTRY_SIZE ||
2509 mlx4_log_num_mgm_entry_size > MLX4_MAX_MGM_LOG_ENTRY_SIZE)) {
2510 pr_warning("mlx4_core: mlx4_log_num_mgm_entry_size (%d) not "
2511 "in legal range (-1 or %d..%d)\n",
2512 mlx4_log_num_mgm_entry_size,
2513 MLX4_MIN_MGM_LOG_ENTRY_SIZE,
2514 MLX4_MAX_MGM_LOG_ENTRY_SIZE);
2515 return -1;
2516 }
2517
7ff93f8b
YP		 2518 return 0;
2519}
2520
225c7b1f
RD		 2521static int __init mlx4_init(void)
2522{
2523 int ret;
2524
7ff93f8b
YP		 2525 if (mlx4_verify_params())
2526 return -EINVAL;
2527
27bf91d6
YP		 2528 mlx4_catas_init();
2529
2530 mlx4_wq = create_singlethread_workqueue("mlx4");
2531 if (!mlx4_wq)
2532 return -ENOMEM;
ee49bd93 2533
225c7b1f
RD		 2534 ret = pci_register_driver(&mlx4_driver);
2535 return ret < 0 ? ret : 0;
2536}
2537
2538static void __exit mlx4_cleanup(void)
2539{
2540 pci_unregister_driver(&mlx4_driver);
27bf91d6 2541 destroy_workqueue(mlx4_wq);
225c7b1f
RD		 2542}
2543
2544module_init(mlx4_init);
2545module_exit(mlx4_cleanup);
Linux 6.x block layer and io_uring tree(s)