2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
5 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
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:
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
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.
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
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>
41 #include <linux/slab.h>
42 #include <linux/io-mapping.h>
43 #include <linux/delay.h>
44 #include <linux/kmod.h>
46 #include <linux/mlx4/device.h>
47 #include <linux/mlx4/doorbell.h>
53 MODULE_AUTHOR("Roland Dreier");
54 MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
55 MODULE_LICENSE("Dual BSD/GPL");
56 MODULE_VERSION(DRV_VERSION);
58 struct workqueue_struct *mlx4_wq;
60 #ifdef CONFIG_MLX4_DEBUG
62 int mlx4_debug_level = 0;
63 module_param_named(debug_level, mlx4_debug_level, int, 0644);
64 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
66 #endif /* CONFIG_MLX4_DEBUG */
71 module_param(msi_x, int, 0444);
72 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
74 #else /* CONFIG_PCI_MSI */
78 #endif /* CONFIG_PCI_MSI */
80 static uint8_t num_vfs[3] = {0, 0, 0};
81 static int num_vfs_argc;
82 module_param_array(num_vfs, byte , &num_vfs_argc, 0444);
83 MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0\n"
84 "num_vfs=port1,port2,port1+2");
86 static uint8_t probe_vf[3] = {0, 0, 0};
87 static int probe_vfs_argc;
88 module_param_array(probe_vf, byte, &probe_vfs_argc, 0444);
89 MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)\n"
90 "probe_vf=port1,port2,port1+2");
92 int mlx4_log_num_mgm_entry_size = MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
93 module_param_named(log_num_mgm_entry_size,
94 mlx4_log_num_mgm_entry_size, int, 0444);
95 MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num"
96 " of qp per mcg, for example:"
97 " 10 gives 248.range: 7 <="
98 " log_num_mgm_entry_size <= 12."
99 " To activate device managed"
100 " flow steering when available, set to -1");
102 static bool enable_64b_cqe_eqe = true;
103 module_param(enable_64b_cqe_eqe, bool, 0444);
104 MODULE_PARM_DESC(enable_64b_cqe_eqe,
105 "Enable 64 byte CQEs/EQEs when the FW supports this (default: True)");
107 #define PF_CONTEXT_BEHAVIOUR_MASK (MLX4_FUNC_CAP_64B_EQE_CQE | \
108 MLX4_FUNC_CAP_EQE_CQE_STRIDE | \
109 MLX4_FUNC_CAP_DMFS_A0_STATIC)
111 #define RESET_PERSIST_MASK_FLAGS (MLX4_FLAG_SRIOV)
113 static char mlx4_version[] =
114 DRV_NAME ": Mellanox ConnectX core driver v"
115 DRV_VERSION " (" DRV_RELDATE ")\n";
117 static struct mlx4_profile default_profile = {
120 .rdmarc_per_qp = 1 << 4,
124 .num_mtt = 1 << 20, /* It is really num mtt segements */
127 static struct mlx4_profile low_mem_profile = {
130 .rdmarc_per_qp = 1 << 4,
137 static int log_num_mac = 7;
138 module_param_named(log_num_mac, log_num_mac, int, 0444);
139 MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
141 static int log_num_vlan;
142 module_param_named(log_num_vlan, log_num_vlan, int, 0444);
143 MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
144 /* Log2 max number of VLANs per ETH port (0-7) */
145 #define MLX4_LOG_NUM_VLANS 7
146 #define MLX4_MIN_LOG_NUM_VLANS 0
147 #define MLX4_MIN_LOG_NUM_MAC 1
149 static bool use_prio;
150 module_param_named(use_prio, use_prio, bool, 0444);
151 MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports (deprecated)");
153 int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
154 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
155 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
157 static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE};
158 static int arr_argc = 2;
159 module_param_array(port_type_array, int, &arr_argc, 0444);
160 MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default "
161 "1 for IB, 2 for Ethernet");
163 struct mlx4_port_config {
164 struct list_head list;
165 enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
166 struct pci_dev *pdev;
169 static atomic_t pf_loading = ATOMIC_INIT(0);
171 int mlx4_check_port_params(struct mlx4_dev *dev,
172 enum mlx4_port_type *port_type)
176 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
177 for (i = 0; i < dev->caps.num_ports - 1; i++) {
178 if (port_type[i] != port_type[i + 1]) {
179 mlx4_err(dev, "Only same port types supported on this HCA, aborting\n");
185 for (i = 0; i < dev->caps.num_ports; i++) {
186 if (!(port_type[i] & dev->caps.supported_type[i+1])) {
187 mlx4_err(dev, "Requested port type for port %d is not supported on this HCA\n",
195 static void mlx4_set_port_mask(struct mlx4_dev *dev)
199 for (i = 1; i <= dev->caps.num_ports; ++i)
200 dev->caps.port_mask[i] = dev->caps.port_type[i];
204 MLX4_QUERY_FUNC_NUM_SYS_EQS = 1 << 0,
207 static int mlx4_query_func(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
210 struct mlx4_func func;
212 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) {
213 err = mlx4_QUERY_FUNC(dev, &func, 0);
215 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
218 dev_cap->max_eqs = func.max_eq;
219 dev_cap->reserved_eqs = func.rsvd_eqs;
220 dev_cap->reserved_uars = func.rsvd_uars;
221 err |= MLX4_QUERY_FUNC_NUM_SYS_EQS;
226 static void mlx4_enable_cqe_eqe_stride(struct mlx4_dev *dev)
228 struct mlx4_caps *dev_cap = &dev->caps;
230 /* FW not supporting or cancelled by user */
231 if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) ||
232 !(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE))
235 /* Must have 64B CQE_EQE enabled by FW to use bigger stride
236 * When FW has NCSI it may decide not to report 64B CQE/EQEs
238 if (!(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_EQE) ||
239 !(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_CQE)) {
240 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
241 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
245 if (cache_line_size() == 128 || cache_line_size() == 256) {
246 mlx4_dbg(dev, "Enabling CQE stride cacheLine supported\n");
247 /* Changing the real data inside CQE size to 32B */
248 dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
249 dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
251 if (mlx4_is_master(dev))
252 dev_cap->function_caps |= MLX4_FUNC_CAP_EQE_CQE_STRIDE;
254 mlx4_dbg(dev, "Disabling CQE stride cacheLine unsupported\n");
255 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
256 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
260 static int _mlx4_dev_port(struct mlx4_dev *dev, int port,
261 struct mlx4_port_cap *port_cap)
263 dev->caps.vl_cap[port] = port_cap->max_vl;
264 dev->caps.ib_mtu_cap[port] = port_cap->ib_mtu;
265 dev->phys_caps.gid_phys_table_len[port] = port_cap->max_gids;
266 dev->phys_caps.pkey_phys_table_len[port] = port_cap->max_pkeys;
267 /* set gid and pkey table operating lengths by default
268 * to non-sriov values
270 dev->caps.gid_table_len[port] = port_cap->max_gids;
271 dev->caps.pkey_table_len[port] = port_cap->max_pkeys;
272 dev->caps.port_width_cap[port] = port_cap->max_port_width;
273 dev->caps.eth_mtu_cap[port] = port_cap->eth_mtu;
274 dev->caps.def_mac[port] = port_cap->def_mac;
275 dev->caps.supported_type[port] = port_cap->supported_port_types;
276 dev->caps.suggested_type[port] = port_cap->suggested_type;
277 dev->caps.default_sense[port] = port_cap->default_sense;
278 dev->caps.trans_type[port] = port_cap->trans_type;
279 dev->caps.vendor_oui[port] = port_cap->vendor_oui;
280 dev->caps.wavelength[port] = port_cap->wavelength;
281 dev->caps.trans_code[port] = port_cap->trans_code;
286 static int mlx4_dev_port(struct mlx4_dev *dev, int port,
287 struct mlx4_port_cap *port_cap)
291 err = mlx4_QUERY_PORT(dev, port, port_cap);
294 mlx4_err(dev, "QUERY_PORT command failed.\n");
299 #define MLX4_A0_STEERING_TABLE_SIZE 256
300 static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
305 err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
307 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
310 mlx4_dev_cap_dump(dev, dev_cap);
312 if (dev_cap->min_page_sz > PAGE_SIZE) {
313 mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n",
314 dev_cap->min_page_sz, PAGE_SIZE);
317 if (dev_cap->num_ports > MLX4_MAX_PORTS) {
318 mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n",
319 dev_cap->num_ports, MLX4_MAX_PORTS);
323 if (dev_cap->uar_size > pci_resource_len(dev->persist->pdev, 2)) {
324 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n",
327 pci_resource_len(dev->persist->pdev, 2));
331 dev->caps.num_ports = dev_cap->num_ports;
332 dev->caps.num_sys_eqs = dev_cap->num_sys_eqs;
333 dev->phys_caps.num_phys_eqs = dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS ?
334 dev->caps.num_sys_eqs :
336 for (i = 1; i <= dev->caps.num_ports; ++i) {
337 err = _mlx4_dev_port(dev, i, dev_cap->port_cap + i);
339 mlx4_err(dev, "QUERY_PORT command failed, aborting\n");
344 dev->caps.uar_page_size = PAGE_SIZE;
345 dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
346 dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
347 dev->caps.bf_reg_size = dev_cap->bf_reg_size;
348 dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
349 dev->caps.max_sq_sg = dev_cap->max_sq_sg;
350 dev->caps.max_rq_sg = dev_cap->max_rq_sg;
351 dev->caps.max_wqes = dev_cap->max_qp_sz;
352 dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
353 dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
354 dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
355 dev->caps.reserved_srqs = dev_cap->reserved_srqs;
356 dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
357 dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
359 * Subtract 1 from the limit because we need to allocate a
360 * spare CQE so the HCA HW can tell the difference between an
361 * empty CQ and a full CQ.
363 dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
364 dev->caps.reserved_cqs = dev_cap->reserved_cqs;
365 dev->caps.reserved_eqs = dev_cap->reserved_eqs;
366 dev->caps.reserved_mtts = dev_cap->reserved_mtts;
367 dev->caps.reserved_mrws = dev_cap->reserved_mrws;
369 /* The first 128 UARs are used for EQ doorbells */
370 dev->caps.reserved_uars = max_t(int, 128, dev_cap->reserved_uars);
371 dev->caps.reserved_pds = dev_cap->reserved_pds;
372 dev->caps.reserved_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
373 dev_cap->reserved_xrcds : 0;
374 dev->caps.max_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
375 dev_cap->max_xrcds : 0;
376 dev->caps.mtt_entry_sz = dev_cap->mtt_entry_sz;
378 dev->caps.max_msg_sz = dev_cap->max_msg_sz;
379 dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
380 dev->caps.flags = dev_cap->flags;
381 dev->caps.flags2 = dev_cap->flags2;
382 dev->caps.bmme_flags = dev_cap->bmme_flags;
383 dev->caps.reserved_lkey = dev_cap->reserved_lkey;
384 dev->caps.stat_rate_support = dev_cap->stat_rate_support;
385 dev->caps.max_gso_sz = dev_cap->max_gso_sz;
386 dev->caps.max_rss_tbl_sz = dev_cap->max_rss_tbl_sz;
388 /* Sense port always allowed on supported devices for ConnectX-1 and -2 */
389 if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT)
390 dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
391 /* Don't do sense port on multifunction devices (for now at least) */
392 if (mlx4_is_mfunc(dev))
393 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
395 if (mlx4_low_memory_profile()) {
396 dev->caps.log_num_macs = MLX4_MIN_LOG_NUM_MAC;
397 dev->caps.log_num_vlans = MLX4_MIN_LOG_NUM_VLANS;
399 dev->caps.log_num_macs = log_num_mac;
400 dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
403 for (i = 1; i <= dev->caps.num_ports; ++i) {
404 dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE;
405 if (dev->caps.supported_type[i]) {
406 /* if only ETH is supported - assign ETH */
407 if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH)
408 dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
409 /* if only IB is supported, assign IB */
410 else if (dev->caps.supported_type[i] ==
412 dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
414 /* if IB and ETH are supported, we set the port
415 * type according to user selection of port type;
416 * if user selected none, take the FW hint */
417 if (port_type_array[i - 1] == MLX4_PORT_TYPE_NONE)
418 dev->caps.port_type[i] = dev->caps.suggested_type[i] ?
419 MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB;
421 dev->caps.port_type[i] = port_type_array[i - 1];
425 * Link sensing is allowed on the port if 3 conditions are true:
426 * 1. Both protocols are supported on the port.
427 * 2. Different types are supported on the port
428 * 3. FW declared that it supports link sensing
430 mlx4_priv(dev)->sense.sense_allowed[i] =
431 ((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) &&
432 (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
433 (dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT));
436 * If "default_sense" bit is set, we move the port to "AUTO" mode
437 * and perform sense_port FW command to try and set the correct
438 * port type from beginning
440 if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) {
441 enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE;
442 dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO;
443 mlx4_SENSE_PORT(dev, i, &sensed_port);
444 if (sensed_port != MLX4_PORT_TYPE_NONE)
445 dev->caps.port_type[i] = sensed_port;
447 dev->caps.possible_type[i] = dev->caps.port_type[i];
450 if (dev->caps.log_num_macs > dev_cap->port_cap[i].log_max_macs) {
451 dev->caps.log_num_macs = dev_cap->port_cap[i].log_max_macs;
452 mlx4_warn(dev, "Requested number of MACs is too much for port %d, reducing to %d\n",
453 i, 1 << dev->caps.log_num_macs);
455 if (dev->caps.log_num_vlans > dev_cap->port_cap[i].log_max_vlans) {
456 dev->caps.log_num_vlans = dev_cap->port_cap[i].log_max_vlans;
457 mlx4_warn(dev, "Requested number of VLANs is too much for port %d, reducing to %d\n",
458 i, 1 << dev->caps.log_num_vlans);
462 dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
464 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
465 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
466 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
467 (1 << dev->caps.log_num_macs) *
468 (1 << dev->caps.log_num_vlans) *
470 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
472 if (dev_cap->dmfs_high_rate_qpn_base > 0 &&
473 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN)
474 dev->caps.dmfs_high_rate_qpn_base = dev_cap->dmfs_high_rate_qpn_base;
476 dev->caps.dmfs_high_rate_qpn_base =
477 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
479 if (dev_cap->dmfs_high_rate_qpn_range > 0 &&
480 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN) {
481 dev->caps.dmfs_high_rate_qpn_range = dev_cap->dmfs_high_rate_qpn_range;
482 dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DEFAULT;
483 dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_FS_A0;
485 dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_NOT_SUPPORTED;
486 dev->caps.dmfs_high_rate_qpn_base =
487 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
488 dev->caps.dmfs_high_rate_qpn_range = MLX4_A0_STEERING_TABLE_SIZE;
491 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_RSS_RAW_ETH] =
492 dev->caps.dmfs_high_rate_qpn_range;
494 dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
495 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
496 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
497 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
499 dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0;
501 if (!enable_64b_cqe_eqe && !mlx4_is_slave(dev)) {
503 (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) {
504 mlx4_warn(dev, "64B EQEs/CQEs supported by the device but not enabled\n");
505 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
506 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
509 if (dev_cap->flags2 &
510 (MLX4_DEV_CAP_FLAG2_CQE_STRIDE |
511 MLX4_DEV_CAP_FLAG2_EQE_STRIDE)) {
512 mlx4_warn(dev, "Disabling EQE/CQE stride per user request\n");
513 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
514 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
518 if ((dev->caps.flags &
519 (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) &&
521 dev->caps.function_caps |= MLX4_FUNC_CAP_64B_EQE_CQE;
523 if (!mlx4_is_slave(dev)) {
524 mlx4_enable_cqe_eqe_stride(dev);
525 dev->caps.alloc_res_qp_mask =
526 (dev->caps.bf_reg_size ? MLX4_RESERVE_ETH_BF_QP : 0) |
529 dev->caps.alloc_res_qp_mask = 0;
535 static int mlx4_get_pcie_dev_link_caps(struct mlx4_dev *dev,
536 enum pci_bus_speed *speed,
537 enum pcie_link_width *width)
539 u32 lnkcap1, lnkcap2;
542 #define PCIE_MLW_CAP_SHIFT 4 /* start of MLW mask in link capabilities */
544 *speed = PCI_SPEED_UNKNOWN;
545 *width = PCIE_LNK_WIDTH_UNKNOWN;
547 err1 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP,
549 err2 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP2,
551 if (!err2 && lnkcap2) { /* PCIe r3.0-compliant */
552 if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_8_0GB)
553 *speed = PCIE_SPEED_8_0GT;
554 else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_5_0GB)
555 *speed = PCIE_SPEED_5_0GT;
556 else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_2_5GB)
557 *speed = PCIE_SPEED_2_5GT;
560 *width = (lnkcap1 & PCI_EXP_LNKCAP_MLW) >> PCIE_MLW_CAP_SHIFT;
561 if (!lnkcap2) { /* pre-r3.0 */
562 if (lnkcap1 & PCI_EXP_LNKCAP_SLS_5_0GB)
563 *speed = PCIE_SPEED_5_0GT;
564 else if (lnkcap1 & PCI_EXP_LNKCAP_SLS_2_5GB)
565 *speed = PCIE_SPEED_2_5GT;
569 if (*speed == PCI_SPEED_UNKNOWN || *width == PCIE_LNK_WIDTH_UNKNOWN) {
571 err2 ? err2 : -EINVAL;
576 static void mlx4_check_pcie_caps(struct mlx4_dev *dev)
578 enum pcie_link_width width, width_cap;
579 enum pci_bus_speed speed, speed_cap;
582 #define PCIE_SPEED_STR(speed) \
583 (speed == PCIE_SPEED_8_0GT ? "8.0GT/s" : \
584 speed == PCIE_SPEED_5_0GT ? "5.0GT/s" : \
585 speed == PCIE_SPEED_2_5GT ? "2.5GT/s" : \
588 err = mlx4_get_pcie_dev_link_caps(dev, &speed_cap, &width_cap);
591 "Unable to determine PCIe device BW capabilities\n");
595 err = pcie_get_minimum_link(dev->persist->pdev, &speed, &width);
596 if (err || speed == PCI_SPEED_UNKNOWN ||
597 width == PCIE_LNK_WIDTH_UNKNOWN) {
599 "Unable to determine PCI device chain minimum BW\n");
603 if (width != width_cap || speed != speed_cap)
605 "PCIe BW is different than device's capability\n");
607 mlx4_info(dev, "PCIe link speed is %s, device supports %s\n",
608 PCIE_SPEED_STR(speed), PCIE_SPEED_STR(speed_cap));
609 mlx4_info(dev, "PCIe link width is x%d, device supports x%d\n",
614 /*The function checks if there are live vf, return the num of them*/
615 static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
617 struct mlx4_priv *priv = mlx4_priv(dev);
618 struct mlx4_slave_state *s_state;
622 for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) {
623 s_state = &priv->mfunc.master.slave_state[i];
624 if (s_state->active && s_state->last_cmd !=
625 MLX4_COMM_CMD_RESET) {
626 mlx4_warn(dev, "%s: slave: %d is still active\n",
634 int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey)
636 u32 qk = MLX4_RESERVED_QKEY_BASE;
638 if (qpn >= dev->phys_caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX ||
639 qpn < dev->phys_caps.base_proxy_sqpn)
642 if (qpn >= dev->phys_caps.base_tunnel_sqpn)
644 qk += qpn - dev->phys_caps.base_tunnel_sqpn;
646 qk += qpn - dev->phys_caps.base_proxy_sqpn;
650 EXPORT_SYMBOL(mlx4_get_parav_qkey);
652 void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val)
654 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
656 if (!mlx4_is_master(dev))
659 priv->virt2phys_pkey[slave][port - 1][i] = val;
661 EXPORT_SYMBOL(mlx4_sync_pkey_table);
663 void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid)
665 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
667 if (!mlx4_is_master(dev))
670 priv->slave_node_guids[slave] = guid;
672 EXPORT_SYMBOL(mlx4_put_slave_node_guid);
674 __be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave)
676 struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
678 if (!mlx4_is_master(dev))
681 return priv->slave_node_guids[slave];
683 EXPORT_SYMBOL(mlx4_get_slave_node_guid);
685 int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
687 struct mlx4_priv *priv = mlx4_priv(dev);
688 struct mlx4_slave_state *s_slave;
690 if (!mlx4_is_master(dev))
693 s_slave = &priv->mfunc.master.slave_state[slave];
694 return !!s_slave->active;
696 EXPORT_SYMBOL(mlx4_is_slave_active);
698 static void slave_adjust_steering_mode(struct mlx4_dev *dev,
699 struct mlx4_dev_cap *dev_cap,
700 struct mlx4_init_hca_param *hca_param)
702 dev->caps.steering_mode = hca_param->steering_mode;
703 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
704 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
705 dev->caps.fs_log_max_ucast_qp_range_size =
706 dev_cap->fs_log_max_ucast_qp_range_size;
708 dev->caps.num_qp_per_mgm =
709 4 * ((1 << hca_param->log_mc_entry_sz)/16 - 2);
711 mlx4_dbg(dev, "Steering mode is: %s\n",
712 mlx4_steering_mode_str(dev->caps.steering_mode));
715 static int mlx4_slave_cap(struct mlx4_dev *dev)
719 struct mlx4_dev_cap dev_cap;
720 struct mlx4_func_cap func_cap;
721 struct mlx4_init_hca_param hca_param;
724 memset(&hca_param, 0, sizeof(hca_param));
725 err = mlx4_QUERY_HCA(dev, &hca_param);
727 mlx4_err(dev, "QUERY_HCA command failed, aborting\n");
731 /* fail if the hca has an unknown global capability
732 * at this time global_caps should be always zeroed
734 if (hca_param.global_caps) {
735 mlx4_err(dev, "Unknown hca global capabilities\n");
739 mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
741 dev->caps.hca_core_clock = hca_param.hca_core_clock;
743 memset(&dev_cap, 0, sizeof(dev_cap));
744 dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp;
745 err = mlx4_dev_cap(dev, &dev_cap);
747 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
751 err = mlx4_QUERY_FW(dev);
753 mlx4_err(dev, "QUERY_FW command failed: could not get FW version\n");
755 page_size = ~dev->caps.page_size_cap + 1;
756 mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
757 if (page_size > PAGE_SIZE) {
758 mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n",
759 page_size, PAGE_SIZE);
763 /* slave gets uar page size from QUERY_HCA fw command */
764 dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
766 /* TODO: relax this assumption */
767 if (dev->caps.uar_page_size != PAGE_SIZE) {
768 mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
769 dev->caps.uar_page_size, PAGE_SIZE);
773 memset(&func_cap, 0, sizeof(func_cap));
774 err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap);
776 mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d)\n",
781 if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
782 PF_CONTEXT_BEHAVIOUR_MASK) {
783 mlx4_err(dev, "Unknown pf context behaviour %x known flags %x\n",
784 func_cap.pf_context_behaviour, PF_CONTEXT_BEHAVIOUR_MASK);
788 dev->caps.num_ports = func_cap.num_ports;
789 dev->quotas.qp = func_cap.qp_quota;
790 dev->quotas.srq = func_cap.srq_quota;
791 dev->quotas.cq = func_cap.cq_quota;
792 dev->quotas.mpt = func_cap.mpt_quota;
793 dev->quotas.mtt = func_cap.mtt_quota;
794 dev->caps.num_qps = 1 << hca_param.log_num_qps;
795 dev->caps.num_srqs = 1 << hca_param.log_num_srqs;
796 dev->caps.num_cqs = 1 << hca_param.log_num_cqs;
797 dev->caps.num_mpts = 1 << hca_param.log_mpt_sz;
798 dev->caps.num_eqs = func_cap.max_eq;
799 dev->caps.reserved_eqs = func_cap.reserved_eq;
800 dev->caps.num_pds = MLX4_NUM_PDS;
801 dev->caps.num_mgms = 0;
802 dev->caps.num_amgms = 0;
804 if (dev->caps.num_ports > MLX4_MAX_PORTS) {
805 mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n",
806 dev->caps.num_ports, MLX4_MAX_PORTS);
810 dev->caps.qp0_qkey = kcalloc(dev->caps.num_ports, sizeof(u32), GFP_KERNEL);
811 dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
812 dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
813 dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
814 dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
816 if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy ||
817 !dev->caps.qp1_tunnel || !dev->caps.qp1_proxy ||
818 !dev->caps.qp0_qkey) {
823 for (i = 1; i <= dev->caps.num_ports; ++i) {
824 err = mlx4_QUERY_FUNC_CAP(dev, i, &func_cap);
826 mlx4_err(dev, "QUERY_FUNC_CAP port command failed for port %d, aborting (%d)\n",
830 dev->caps.qp0_qkey[i - 1] = func_cap.qp0_qkey;
831 dev->caps.qp0_tunnel[i - 1] = func_cap.qp0_tunnel_qpn;
832 dev->caps.qp0_proxy[i - 1] = func_cap.qp0_proxy_qpn;
833 dev->caps.qp1_tunnel[i - 1] = func_cap.qp1_tunnel_qpn;
834 dev->caps.qp1_proxy[i - 1] = func_cap.qp1_proxy_qpn;
835 dev->caps.port_mask[i] = dev->caps.port_type[i];
836 dev->caps.phys_port_id[i] = func_cap.phys_port_id;
837 if (mlx4_get_slave_pkey_gid_tbl_len(dev, i,
838 &dev->caps.gid_table_len[i],
839 &dev->caps.pkey_table_len[i]))
843 if (dev->caps.uar_page_size * (dev->caps.num_uars -
844 dev->caps.reserved_uars) >
845 pci_resource_len(dev->persist->pdev,
847 mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n",
848 dev->caps.uar_page_size * dev->caps.num_uars,
850 pci_resource_len(dev->persist->pdev, 2));
854 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_EQE_ENABLED) {
855 dev->caps.eqe_size = 64;
856 dev->caps.eqe_factor = 1;
858 dev->caps.eqe_size = 32;
859 dev->caps.eqe_factor = 0;
862 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_CQE_ENABLED) {
863 dev->caps.cqe_size = 64;
864 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
866 dev->caps.cqe_size = 32;
869 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_EQE_STRIDE_ENABLED) {
870 dev->caps.eqe_size = hca_param.eqe_size;
871 dev->caps.eqe_factor = 0;
874 if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_CQE_STRIDE_ENABLED) {
875 dev->caps.cqe_size = hca_param.cqe_size;
876 /* User still need to know when CQE > 32B */
877 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
880 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
881 mlx4_warn(dev, "Timestamping is not supported in slave mode\n");
883 slave_adjust_steering_mode(dev, &dev_cap, &hca_param);
885 if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_BF_RES_QP &&
886 dev->caps.bf_reg_size)
887 dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_ETH_BF_QP;
889 if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_A0_RES_QP)
890 dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_A0_QP;
895 kfree(dev->caps.qp0_qkey);
896 kfree(dev->caps.qp0_tunnel);
897 kfree(dev->caps.qp0_proxy);
898 kfree(dev->caps.qp1_tunnel);
899 kfree(dev->caps.qp1_proxy);
900 dev->caps.qp0_qkey = NULL;
901 dev->caps.qp0_tunnel = NULL;
902 dev->caps.qp0_proxy = NULL;
903 dev->caps.qp1_tunnel = NULL;
904 dev->caps.qp1_proxy = NULL;
909 static void mlx4_request_modules(struct mlx4_dev *dev)
912 int has_ib_port = false;
913 int has_eth_port = false;
914 #define EN_DRV_NAME "mlx4_en"
915 #define IB_DRV_NAME "mlx4_ib"
917 for (port = 1; port <= dev->caps.num_ports; port++) {
918 if (dev->caps.port_type[port] == MLX4_PORT_TYPE_IB)
920 else if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
925 request_module_nowait(EN_DRV_NAME);
926 if (has_ib_port || (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE))
927 request_module_nowait(IB_DRV_NAME);
931 * Change the port configuration of the device.
932 * Every user of this function must hold the port mutex.
934 int mlx4_change_port_types(struct mlx4_dev *dev,
935 enum mlx4_port_type *port_types)
941 for (port = 0; port < dev->caps.num_ports; port++) {
942 /* Change the port type only if the new type is different
943 * from the current, and not set to Auto */
944 if (port_types[port] != dev->caps.port_type[port + 1])
948 mlx4_unregister_device(dev);
949 for (port = 1; port <= dev->caps.num_ports; port++) {
950 mlx4_CLOSE_PORT(dev, port);
951 dev->caps.port_type[port] = port_types[port - 1];
952 err = mlx4_SET_PORT(dev, port, -1);
954 mlx4_err(dev, "Failed to set port %d, aborting\n",
959 mlx4_set_port_mask(dev);
960 err = mlx4_register_device(dev);
962 mlx4_err(dev, "Failed to register device\n");
965 mlx4_request_modules(dev);
972 static ssize_t show_port_type(struct device *dev,
973 struct device_attribute *attr,
976 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
978 struct mlx4_dev *mdev = info->dev;
982 (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
984 if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
985 sprintf(buf, "auto (%s)\n", type);
987 sprintf(buf, "%s\n", type);
992 static ssize_t set_port_type(struct device *dev,
993 struct device_attribute *attr,
994 const char *buf, size_t count)
996 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
998 struct mlx4_dev *mdev = info->dev;
999 struct mlx4_priv *priv = mlx4_priv(mdev);
1000 enum mlx4_port_type types[MLX4_MAX_PORTS];
1001 enum mlx4_port_type new_types[MLX4_MAX_PORTS];
1002 static DEFINE_MUTEX(set_port_type_mutex);
1006 mutex_lock(&set_port_type_mutex);
1008 if (!strcmp(buf, "ib\n"))
1009 info->tmp_type = MLX4_PORT_TYPE_IB;
1010 else if (!strcmp(buf, "eth\n"))
1011 info->tmp_type = MLX4_PORT_TYPE_ETH;
1012 else if (!strcmp(buf, "auto\n"))
1013 info->tmp_type = MLX4_PORT_TYPE_AUTO;
1015 mlx4_err(mdev, "%s is not supported port type\n", buf);
1020 mlx4_stop_sense(mdev);
1021 mutex_lock(&priv->port_mutex);
1022 /* Possible type is always the one that was delivered */
1023 mdev->caps.possible_type[info->port] = info->tmp_type;
1025 for (i = 0; i < mdev->caps.num_ports; i++) {
1026 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
1027 mdev->caps.possible_type[i+1];
1028 if (types[i] == MLX4_PORT_TYPE_AUTO)
1029 types[i] = mdev->caps.port_type[i+1];
1032 if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
1033 !(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) {
1034 for (i = 1; i <= mdev->caps.num_ports; i++) {
1035 if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
1036 mdev->caps.possible_type[i] = mdev->caps.port_type[i];
1042 mlx4_err(mdev, "Auto sensing is not supported on this HCA. Set only 'eth' or 'ib' for both ports (should be the same)\n");
1046 mlx4_do_sense_ports(mdev, new_types, types);
1048 err = mlx4_check_port_params(mdev, new_types);
1052 /* We are about to apply the changes after the configuration
1053 * was verified, no need to remember the temporary types
1055 for (i = 0; i < mdev->caps.num_ports; i++)
1056 priv->port[i + 1].tmp_type = 0;
1058 err = mlx4_change_port_types(mdev, new_types);
1061 mlx4_start_sense(mdev);
1062 mutex_unlock(&priv->port_mutex);
1064 mutex_unlock(&set_port_type_mutex);
1066 return err ? err : count;
1077 static inline int int_to_ibta_mtu(int mtu)
1080 case 256: return IB_MTU_256;
1081 case 512: return IB_MTU_512;
1082 case 1024: return IB_MTU_1024;
1083 case 2048: return IB_MTU_2048;
1084 case 4096: return IB_MTU_4096;
1089 static inline int ibta_mtu_to_int(enum ibta_mtu mtu)
1092 case IB_MTU_256: return 256;
1093 case IB_MTU_512: return 512;
1094 case IB_MTU_1024: return 1024;
1095 case IB_MTU_2048: return 2048;
1096 case IB_MTU_4096: return 4096;
1101 static ssize_t show_port_ib_mtu(struct device *dev,
1102 struct device_attribute *attr,
1105 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
1107 struct mlx4_dev *mdev = info->dev;
1109 if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH)
1110 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
1112 sprintf(buf, "%d\n",
1113 ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port]));
1117 static ssize_t set_port_ib_mtu(struct device *dev,
1118 struct device_attribute *attr,
1119 const char *buf, size_t count)
1121 struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
1123 struct mlx4_dev *mdev = info->dev;
1124 struct mlx4_priv *priv = mlx4_priv(mdev);
1125 int err, port, mtu, ibta_mtu = -1;
1127 if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) {
1128 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
1132 err = kstrtoint(buf, 0, &mtu);
1134 ibta_mtu = int_to_ibta_mtu(mtu);
1136 if (err || ibta_mtu < 0) {
1137 mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
1141 mdev->caps.port_ib_mtu[info->port] = ibta_mtu;
1143 mlx4_stop_sense(mdev);
1144 mutex_lock(&priv->port_mutex);
1145 mlx4_unregister_device(mdev);
1146 for (port = 1; port <= mdev->caps.num_ports; port++) {
1147 mlx4_CLOSE_PORT(mdev, port);
1148 err = mlx4_SET_PORT(mdev, port, -1);
1150 mlx4_err(mdev, "Failed to set port %d, aborting\n",
1155 err = mlx4_register_device(mdev);
1157 mutex_unlock(&priv->port_mutex);
1158 mlx4_start_sense(mdev);
1159 return err ? err : count;
1162 static int mlx4_load_fw(struct mlx4_dev *dev)
1164 struct mlx4_priv *priv = mlx4_priv(dev);
1167 priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
1168 GFP_HIGHUSER | __GFP_NOWARN, 0);
1169 if (!priv->fw.fw_icm) {
1170 mlx4_err(dev, "Couldn't allocate FW area, aborting\n");
1174 err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
1176 mlx4_err(dev, "MAP_FA command failed, aborting\n");
1180 err = mlx4_RUN_FW(dev);
1182 mlx4_err(dev, "RUN_FW command failed, aborting\n");
1192 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
1196 static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
1199 struct mlx4_priv *priv = mlx4_priv(dev);
1203 err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
1205 ((u64) (MLX4_CMPT_TYPE_QP *
1206 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1207 cmpt_entry_sz, dev->caps.num_qps,
1208 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1213 err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
1215 ((u64) (MLX4_CMPT_TYPE_SRQ *
1216 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1217 cmpt_entry_sz, dev->caps.num_srqs,
1218 dev->caps.reserved_srqs, 0, 0);
1222 err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
1224 ((u64) (MLX4_CMPT_TYPE_CQ *
1225 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1226 cmpt_entry_sz, dev->caps.num_cqs,
1227 dev->caps.reserved_cqs, 0, 0);
1231 num_eqs = dev->phys_caps.num_phys_eqs;
1232 err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
1234 ((u64) (MLX4_CMPT_TYPE_EQ *
1235 cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1236 cmpt_entry_sz, num_eqs, num_eqs, 0, 0);
1243 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1246 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1249 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1255 static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
1256 struct mlx4_init_hca_param *init_hca, u64 icm_size)
1258 struct mlx4_priv *priv = mlx4_priv(dev);
1263 err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
1265 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting\n");
1269 mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory\n",
1270 (unsigned long long) icm_size >> 10,
1271 (unsigned long long) aux_pages << 2);
1273 priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
1274 GFP_HIGHUSER | __GFP_NOWARN, 0);
1275 if (!priv->fw.aux_icm) {
1276 mlx4_err(dev, "Couldn't allocate aux memory, aborting\n");
1280 err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
1282 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting\n");
1286 err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
1288 mlx4_err(dev, "Failed to map cMPT context memory, aborting\n");
1293 num_eqs = dev->phys_caps.num_phys_eqs;
1294 err = mlx4_init_icm_table(dev, &priv->eq_table.table,
1295 init_hca->eqc_base, dev_cap->eqc_entry_sz,
1296 num_eqs, num_eqs, 0, 0);
1298 mlx4_err(dev, "Failed to map EQ context memory, aborting\n");
1299 goto err_unmap_cmpt;
1303 * Reserved MTT entries must be aligned up to a cacheline
1304 * boundary, since the FW will write to them, while the driver
1305 * writes to all other MTT entries. (The variable
1306 * dev->caps.mtt_entry_sz below is really the MTT segment
1307 * size, not the raw entry size)
1309 dev->caps.reserved_mtts =
1310 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
1311 dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
1313 err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
1315 dev->caps.mtt_entry_sz,
1317 dev->caps.reserved_mtts, 1, 0);
1319 mlx4_err(dev, "Failed to map MTT context memory, aborting\n");
1323 err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
1324 init_hca->dmpt_base,
1325 dev_cap->dmpt_entry_sz,
1327 dev->caps.reserved_mrws, 1, 1);
1329 mlx4_err(dev, "Failed to map dMPT context memory, aborting\n");
1333 err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
1335 dev_cap->qpc_entry_sz,
1337 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1340 mlx4_err(dev, "Failed to map QP context memory, aborting\n");
1341 goto err_unmap_dmpt;
1344 err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
1345 init_hca->auxc_base,
1346 dev_cap->aux_entry_sz,
1348 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1351 mlx4_err(dev, "Failed to map AUXC context memory, aborting\n");
1355 err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
1356 init_hca->altc_base,
1357 dev_cap->altc_entry_sz,
1359 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1362 mlx4_err(dev, "Failed to map ALTC context memory, aborting\n");
1363 goto err_unmap_auxc;
1366 err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
1367 init_hca->rdmarc_base,
1368 dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
1370 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1373 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
1374 goto err_unmap_altc;
1377 err = mlx4_init_icm_table(dev, &priv->cq_table.table,
1379 dev_cap->cqc_entry_sz,
1381 dev->caps.reserved_cqs, 0, 0);
1383 mlx4_err(dev, "Failed to map CQ context memory, aborting\n");
1384 goto err_unmap_rdmarc;
1387 err = mlx4_init_icm_table(dev, &priv->srq_table.table,
1388 init_hca->srqc_base,
1389 dev_cap->srq_entry_sz,
1391 dev->caps.reserved_srqs, 0, 0);
1393 mlx4_err(dev, "Failed to map SRQ context memory, aborting\n");
1398 * For flow steering device managed mode it is required to use
1399 * mlx4_init_icm_table. For B0 steering mode it's not strictly
1400 * required, but for simplicity just map the whole multicast
1401 * group table now. The table isn't very big and it's a lot
1402 * easier than trying to track ref counts.
1404 err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
1406 mlx4_get_mgm_entry_size(dev),
1407 dev->caps.num_mgms + dev->caps.num_amgms,
1408 dev->caps.num_mgms + dev->caps.num_amgms,
1411 mlx4_err(dev, "Failed to map MCG context memory, aborting\n");
1418 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1421 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1424 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1427 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1430 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1433 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1436 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1439 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1442 mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1445 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1446 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1447 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1448 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1451 mlx4_UNMAP_ICM_AUX(dev);
1454 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1459 static void mlx4_free_icms(struct mlx4_dev *dev)
1461 struct mlx4_priv *priv = mlx4_priv(dev);
1463 mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
1464 mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1465 mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1466 mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1467 mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1468 mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1469 mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1470 mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1471 mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1472 mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1473 mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1474 mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1475 mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1476 mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1478 mlx4_UNMAP_ICM_AUX(dev);
1479 mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1482 static void mlx4_slave_exit(struct mlx4_dev *dev)
1484 struct mlx4_priv *priv = mlx4_priv(dev);
1486 mutex_lock(&priv->cmd.slave_cmd_mutex);
1487 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_TIME))
1488 mlx4_warn(dev, "Failed to close slave function\n");
1489 mutex_unlock(&priv->cmd.slave_cmd_mutex);
1492 static int map_bf_area(struct mlx4_dev *dev)
1494 struct mlx4_priv *priv = mlx4_priv(dev);
1495 resource_size_t bf_start;
1496 resource_size_t bf_len;
1499 if (!dev->caps.bf_reg_size)
1502 bf_start = pci_resource_start(dev->persist->pdev, 2) +
1503 (dev->caps.num_uars << PAGE_SHIFT);
1504 bf_len = pci_resource_len(dev->persist->pdev, 2) -
1505 (dev->caps.num_uars << PAGE_SHIFT);
1506 priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
1507 if (!priv->bf_mapping)
1513 static void unmap_bf_area(struct mlx4_dev *dev)
1515 if (mlx4_priv(dev)->bf_mapping)
1516 io_mapping_free(mlx4_priv(dev)->bf_mapping);
1519 cycle_t mlx4_read_clock(struct mlx4_dev *dev)
1521 u32 clockhi, clocklo, clockhi1;
1524 struct mlx4_priv *priv = mlx4_priv(dev);
1526 for (i = 0; i < 10; i++) {
1527 clockhi = swab32(readl(priv->clock_mapping));
1528 clocklo = swab32(readl(priv->clock_mapping + 4));
1529 clockhi1 = swab32(readl(priv->clock_mapping));
1530 if (clockhi == clockhi1)
1534 cycles = (u64) clockhi << 32 | (u64) clocklo;
1538 EXPORT_SYMBOL_GPL(mlx4_read_clock);
1541 static int map_internal_clock(struct mlx4_dev *dev)
1543 struct mlx4_priv *priv = mlx4_priv(dev);
1545 priv->clock_mapping =
1546 ioremap(pci_resource_start(dev->persist->pdev,
1547 priv->fw.clock_bar) +
1548 priv->fw.clock_offset, MLX4_CLOCK_SIZE);
1550 if (!priv->clock_mapping)
1556 static void unmap_internal_clock(struct mlx4_dev *dev)
1558 struct mlx4_priv *priv = mlx4_priv(dev);
1560 if (priv->clock_mapping)
1561 iounmap(priv->clock_mapping);
1564 static void mlx4_close_hca(struct mlx4_dev *dev)
1566 unmap_internal_clock(dev);
1568 if (mlx4_is_slave(dev))
1569 mlx4_slave_exit(dev);
1571 mlx4_CLOSE_HCA(dev, 0);
1572 mlx4_free_icms(dev);
1576 static void mlx4_close_fw(struct mlx4_dev *dev)
1578 if (!mlx4_is_slave(dev)) {
1580 mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
1584 static int mlx4_comm_check_offline(struct mlx4_dev *dev)
1586 #define COMM_CHAN_OFFLINE_OFFSET 0x09
1591 struct mlx4_priv *priv = mlx4_priv(dev);
1593 end = msecs_to_jiffies(MLX4_COMM_OFFLINE_TIME_OUT) + jiffies;
1594 while (time_before(jiffies, end)) {
1595 comm_flags = swab32(readl((__iomem char *)priv->mfunc.comm +
1596 MLX4_COMM_CHAN_FLAGS));
1597 offline_bit = (comm_flags &
1598 (u32)(1 << COMM_CHAN_OFFLINE_OFFSET));
1601 /* There are cases as part of AER/Reset flow that PF needs
1602 * around 100 msec to load. We therefore sleep for 100 msec
1603 * to allow other tasks to make use of that CPU during this
1608 mlx4_err(dev, "Communication channel is offline.\n");
1612 static void mlx4_reset_vf_support(struct mlx4_dev *dev)
1614 #define COMM_CHAN_RST_OFFSET 0x1e
1616 struct mlx4_priv *priv = mlx4_priv(dev);
1620 comm_caps = swab32(readl((__iomem char *)priv->mfunc.comm +
1621 MLX4_COMM_CHAN_CAPS));
1622 comm_rst = (comm_caps & (u32)(1 << COMM_CHAN_RST_OFFSET));
1625 dev->caps.vf_caps |= MLX4_VF_CAP_FLAG_RESET;
1628 static int mlx4_init_slave(struct mlx4_dev *dev)
1630 struct mlx4_priv *priv = mlx4_priv(dev);
1631 u64 dma = (u64) priv->mfunc.vhcr_dma;
1632 int ret_from_reset = 0;
1634 u32 cmd_channel_ver;
1636 if (atomic_read(&pf_loading)) {
1637 mlx4_warn(dev, "PF is not ready - Deferring probe\n");
1638 return -EPROBE_DEFER;
1641 mutex_lock(&priv->cmd.slave_cmd_mutex);
1642 priv->cmd.max_cmds = 1;
1643 if (mlx4_comm_check_offline(dev)) {
1644 mlx4_err(dev, "PF is not responsive, skipping initialization\n");
1648 mlx4_reset_vf_support(dev);
1649 mlx4_warn(dev, "Sending reset\n");
1650 ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
1652 /* if we are in the middle of flr the slave will try
1653 * NUM_OF_RESET_RETRIES times before leaving.*/
1654 if (ret_from_reset) {
1655 if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) {
1656 mlx4_warn(dev, "slave is currently in the middle of FLR - Deferring probe\n");
1657 mutex_unlock(&priv->cmd.slave_cmd_mutex);
1658 return -EPROBE_DEFER;
1663 /* check the driver version - the slave I/F revision
1664 * must match the master's */
1665 slave_read = swab32(readl(&priv->mfunc.comm->slave_read));
1666 cmd_channel_ver = mlx4_comm_get_version();
1668 if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) !=
1669 MLX4_COMM_GET_IF_REV(slave_read)) {
1670 mlx4_err(dev, "slave driver version is not supported by the master\n");
1674 mlx4_warn(dev, "Sending vhcr0\n");
1675 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48,
1678 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32,
1681 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16,
1684 if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma, MLX4_COMM_TIME))
1687 mutex_unlock(&priv->cmd.slave_cmd_mutex);
1691 mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, 0);
1693 mutex_unlock(&priv->cmd.slave_cmd_mutex);
1697 static void mlx4_parav_master_pf_caps(struct mlx4_dev *dev)
1701 for (i = 1; i <= dev->caps.num_ports; i++) {
1702 if (dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH)
1703 dev->caps.gid_table_len[i] =
1704 mlx4_get_slave_num_gids(dev, 0, i);
1706 dev->caps.gid_table_len[i] = 1;
1707 dev->caps.pkey_table_len[i] =
1708 dev->phys_caps.pkey_phys_table_len[i] - 1;
1712 static int choose_log_fs_mgm_entry_size(int qp_per_entry)
1714 int i = MLX4_MIN_MGM_LOG_ENTRY_SIZE;
1716 for (i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE;
1718 if (qp_per_entry <= 4 * ((1 << i) / 16 - 2))
1722 return (i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE) ? i : -1;
1725 static const char *dmfs_high_rate_steering_mode_str(int dmfs_high_steer_mode)
1727 switch (dmfs_high_steer_mode) {
1728 case MLX4_STEERING_DMFS_A0_DEFAULT:
1729 return "default performance";
1731 case MLX4_STEERING_DMFS_A0_DYNAMIC:
1732 return "dynamic hybrid mode";
1734 case MLX4_STEERING_DMFS_A0_STATIC:
1735 return "performance optimized for limited rule configuration (static)";
1737 case MLX4_STEERING_DMFS_A0_DISABLE:
1738 return "disabled performance optimized steering";
1740 case MLX4_STEERING_DMFS_A0_NOT_SUPPORTED:
1741 return "performance optimized steering not supported";
1744 return "Unrecognized mode";
1748 #define MLX4_DMFS_A0_STEERING (1UL << 2)
1750 static void choose_steering_mode(struct mlx4_dev *dev,
1751 struct mlx4_dev_cap *dev_cap)
1753 if (mlx4_log_num_mgm_entry_size <= 0) {
1754 if ((-mlx4_log_num_mgm_entry_size) & MLX4_DMFS_A0_STEERING) {
1755 if (dev->caps.dmfs_high_steer_mode ==
1756 MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
1757 mlx4_err(dev, "DMFS high rate mode not supported\n");
1759 dev->caps.dmfs_high_steer_mode =
1760 MLX4_STEERING_DMFS_A0_STATIC;
1764 if (mlx4_log_num_mgm_entry_size <= 0 &&
1765 dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_FS_EN &&
1766 (!mlx4_is_mfunc(dev) ||
1767 (dev_cap->fs_max_num_qp_per_entry >=
1768 (dev->persist->num_vfs + 1))) &&
1769 choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry) >=
1770 MLX4_MIN_MGM_LOG_ENTRY_SIZE) {
1771 dev->oper_log_mgm_entry_size =
1772 choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry);
1773 dev->caps.steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
1774 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
1775 dev->caps.fs_log_max_ucast_qp_range_size =
1776 dev_cap->fs_log_max_ucast_qp_range_size;
1778 if (dev->caps.dmfs_high_steer_mode !=
1779 MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
1780 dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DISABLE;
1781 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER &&
1782 dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
1783 dev->caps.steering_mode = MLX4_STEERING_MODE_B0;
1785 dev->caps.steering_mode = MLX4_STEERING_MODE_A0;
1787 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER ||
1788 dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
1789 mlx4_warn(dev, "Must have both UC_STEER and MC_STEER flags set to use B0 steering - falling back to A0 steering mode\n");
1791 dev->oper_log_mgm_entry_size =
1792 mlx4_log_num_mgm_entry_size > 0 ?
1793 mlx4_log_num_mgm_entry_size :
1794 MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
1795 dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev);
1797 mlx4_dbg(dev, "Steering mode is: %s, oper_log_mgm_entry_size = %d, modparam log_num_mgm_entry_size = %d\n",
1798 mlx4_steering_mode_str(dev->caps.steering_mode),
1799 dev->oper_log_mgm_entry_size,
1800 mlx4_log_num_mgm_entry_size);
1803 static void choose_tunnel_offload_mode(struct mlx4_dev *dev,
1804 struct mlx4_dev_cap *dev_cap)
1806 if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED &&
1807 dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS &&
1808 dev->caps.dmfs_high_steer_mode != MLX4_STEERING_DMFS_A0_STATIC)
1809 dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_VXLAN;
1811 dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_NONE;
1813 mlx4_dbg(dev, "Tunneling offload mode is: %s\n", (dev->caps.tunnel_offload_mode
1814 == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) ? "vxlan" : "none");
1817 static int mlx4_validate_optimized_steering(struct mlx4_dev *dev)
1820 struct mlx4_port_cap port_cap;
1822 if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
1825 for (i = 1; i <= dev->caps.num_ports; i++) {
1826 if (mlx4_dev_port(dev, i, &port_cap)) {
1828 "QUERY_DEV_CAP command failed, can't veify DMFS high rate steering.\n");
1829 } else if ((dev->caps.dmfs_high_steer_mode !=
1830 MLX4_STEERING_DMFS_A0_DEFAULT) &&
1831 (port_cap.dmfs_optimized_state ==
1832 !!(dev->caps.dmfs_high_steer_mode ==
1833 MLX4_STEERING_DMFS_A0_DISABLE))) {
1835 "DMFS high rate steer mode differ, driver requested %s but %s in FW.\n",
1836 dmfs_high_rate_steering_mode_str(
1837 dev->caps.dmfs_high_steer_mode),
1838 (port_cap.dmfs_optimized_state ?
1839 "enabled" : "disabled"));
1846 static int mlx4_init_fw(struct mlx4_dev *dev)
1848 struct mlx4_mod_stat_cfg mlx4_cfg;
1851 if (!mlx4_is_slave(dev)) {
1852 err = mlx4_QUERY_FW(dev);
1855 mlx4_info(dev, "non-primary physical function, skipping\n");
1857 mlx4_err(dev, "QUERY_FW command failed, aborting\n");
1861 err = mlx4_load_fw(dev);
1863 mlx4_err(dev, "Failed to start FW, aborting\n");
1867 mlx4_cfg.log_pg_sz_m = 1;
1868 mlx4_cfg.log_pg_sz = 0;
1869 err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
1871 mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
1877 static int mlx4_init_hca(struct mlx4_dev *dev)
1879 struct mlx4_priv *priv = mlx4_priv(dev);
1880 struct mlx4_adapter adapter;
1881 struct mlx4_dev_cap dev_cap;
1882 struct mlx4_profile profile;
1883 struct mlx4_init_hca_param init_hca;
1885 struct mlx4_config_dev_params params;
1888 if (!mlx4_is_slave(dev)) {
1889 err = mlx4_dev_cap(dev, &dev_cap);
1891 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
1895 choose_steering_mode(dev, &dev_cap);
1896 choose_tunnel_offload_mode(dev, &dev_cap);
1898 if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC &&
1899 mlx4_is_master(dev))
1900 dev->caps.function_caps |= MLX4_FUNC_CAP_DMFS_A0_STATIC;
1902 err = mlx4_get_phys_port_id(dev);
1904 mlx4_err(dev, "Fail to get physical port id\n");
1906 if (mlx4_is_master(dev))
1907 mlx4_parav_master_pf_caps(dev);
1909 if (mlx4_low_memory_profile()) {
1910 mlx4_info(dev, "Running from within kdump kernel. Using low memory profile\n");
1911 profile = low_mem_profile;
1913 profile = default_profile;
1915 if (dev->caps.steering_mode ==
1916 MLX4_STEERING_MODE_DEVICE_MANAGED)
1917 profile.num_mcg = MLX4_FS_NUM_MCG;
1919 icm_size = mlx4_make_profile(dev, &profile, &dev_cap,
1921 if ((long long) icm_size < 0) {
1926 dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
1928 init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
1929 init_hca.uar_page_sz = PAGE_SHIFT - 12;
1930 init_hca.mw_enabled = 0;
1931 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
1932 dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN)
1933 init_hca.mw_enabled = INIT_HCA_TPT_MW_ENABLE;
1935 err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
1939 err = mlx4_INIT_HCA(dev, &init_hca);
1941 mlx4_err(dev, "INIT_HCA command failed, aborting\n");
1945 if (dev_cap.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) {
1946 err = mlx4_query_func(dev, &dev_cap);
1948 mlx4_err(dev, "QUERY_FUNC command failed, aborting.\n");
1950 } else if (err & MLX4_QUERY_FUNC_NUM_SYS_EQS) {
1951 dev->caps.num_eqs = dev_cap.max_eqs;
1952 dev->caps.reserved_eqs = dev_cap.reserved_eqs;
1953 dev->caps.reserved_uars = dev_cap.reserved_uars;
1958 * If TS is supported by FW
1959 * read HCA frequency by QUERY_HCA command
1961 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1962 memset(&init_hca, 0, sizeof(init_hca));
1963 err = mlx4_QUERY_HCA(dev, &init_hca);
1965 mlx4_err(dev, "QUERY_HCA command failed, disable timestamp\n");
1966 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
1968 dev->caps.hca_core_clock =
1969 init_hca.hca_core_clock;
1972 /* In case we got HCA frequency 0 - disable timestamping
1973 * to avoid dividing by zero
1975 if (!dev->caps.hca_core_clock) {
1976 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
1978 "HCA frequency is 0 - timestamping is not supported\n");
1979 } else if (map_internal_clock(dev)) {
1981 * Map internal clock,
1982 * in case of failure disable timestamping
1984 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
1985 mlx4_err(dev, "Failed to map internal clock. Timestamping is not supported\n");
1989 if (dev->caps.dmfs_high_steer_mode !=
1990 MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) {
1991 if (mlx4_validate_optimized_steering(dev))
1992 mlx4_warn(dev, "Optimized steering validation failed\n");
1994 if (dev->caps.dmfs_high_steer_mode ==
1995 MLX4_STEERING_DMFS_A0_DISABLE) {
1996 dev->caps.dmfs_high_rate_qpn_base =
1997 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
1998 dev->caps.dmfs_high_rate_qpn_range =
1999 MLX4_A0_STEERING_TABLE_SIZE;
2002 mlx4_dbg(dev, "DMFS high rate steer mode is: %s\n",
2003 dmfs_high_rate_steering_mode_str(
2004 dev->caps.dmfs_high_steer_mode));
2007 err = mlx4_init_slave(dev);
2009 if (err != -EPROBE_DEFER)
2010 mlx4_err(dev, "Failed to initialize slave\n");
2014 err = mlx4_slave_cap(dev);
2016 mlx4_err(dev, "Failed to obtain slave caps\n");
2021 if (map_bf_area(dev))
2022 mlx4_dbg(dev, "Failed to map blue flame area\n");
2024 /*Only the master set the ports, all the rest got it from it.*/
2025 if (!mlx4_is_slave(dev))
2026 mlx4_set_port_mask(dev);
2028 err = mlx4_QUERY_ADAPTER(dev, &adapter);
2030 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting\n");
2034 /* Query CONFIG_DEV parameters */
2035 err = mlx4_config_dev_retrieval(dev, ¶ms);
2036 if (err && err != -ENOTSUPP) {
2037 mlx4_err(dev, "Failed to query CONFIG_DEV parameters\n");
2039 dev->caps.rx_checksum_flags_port[1] = params.rx_csum_flags_port_1;
2040 dev->caps.rx_checksum_flags_port[2] = params.rx_csum_flags_port_2;
2042 priv->eq_table.inta_pin = adapter.inta_pin;
2043 memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
2048 unmap_internal_clock(dev);
2051 if (mlx4_is_slave(dev)) {
2052 kfree(dev->caps.qp0_qkey);
2053 kfree(dev->caps.qp0_tunnel);
2054 kfree(dev->caps.qp0_proxy);
2055 kfree(dev->caps.qp1_tunnel);
2056 kfree(dev->caps.qp1_proxy);
2060 if (mlx4_is_slave(dev))
2061 mlx4_slave_exit(dev);
2063 mlx4_CLOSE_HCA(dev, 0);
2066 if (!mlx4_is_slave(dev))
2067 mlx4_free_icms(dev);
2072 static int mlx4_init_counters_table(struct mlx4_dev *dev)
2074 struct mlx4_priv *priv = mlx4_priv(dev);
2077 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
2080 nent = dev->caps.max_counters;
2081 return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
2084 static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
2086 mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
2089 int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
2091 struct mlx4_priv *priv = mlx4_priv(dev);
2093 if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
2096 *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
2103 int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
2108 if (mlx4_is_mfunc(dev)) {
2109 err = mlx4_cmd_imm(dev, 0, &out_param, RES_COUNTER,
2110 RES_OP_RESERVE, MLX4_CMD_ALLOC_RES,
2111 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2113 *idx = get_param_l(&out_param);
2117 return __mlx4_counter_alloc(dev, idx);
2119 EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
2121 void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
2123 mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx, MLX4_USE_RR);
2127 void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
2131 if (mlx4_is_mfunc(dev)) {
2132 set_param_l(&in_param, idx);
2133 mlx4_cmd(dev, in_param, RES_COUNTER, RES_OP_RESERVE,
2134 MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
2138 __mlx4_counter_free(dev, idx);
2140 EXPORT_SYMBOL_GPL(mlx4_counter_free);
2142 static int mlx4_setup_hca(struct mlx4_dev *dev)
2144 struct mlx4_priv *priv = mlx4_priv(dev);
2147 __be32 ib_port_default_caps;
2149 err = mlx4_init_uar_table(dev);
2151 mlx4_err(dev, "Failed to initialize user access region table, aborting\n");
2155 err = mlx4_uar_alloc(dev, &priv->driver_uar);
2157 mlx4_err(dev, "Failed to allocate driver access region, aborting\n");
2158 goto err_uar_table_free;
2161 priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
2163 mlx4_err(dev, "Couldn't map kernel access region, aborting\n");
2168 err = mlx4_init_pd_table(dev);
2170 mlx4_err(dev, "Failed to initialize protection domain table, aborting\n");
2174 err = mlx4_init_xrcd_table(dev);
2176 mlx4_err(dev, "Failed to initialize reliable connection domain table, aborting\n");
2177 goto err_pd_table_free;
2180 err = mlx4_init_mr_table(dev);
2182 mlx4_err(dev, "Failed to initialize memory region table, aborting\n");
2183 goto err_xrcd_table_free;
2186 if (!mlx4_is_slave(dev)) {
2187 err = mlx4_init_mcg_table(dev);
2189 mlx4_err(dev, "Failed to initialize multicast group table, aborting\n");
2190 goto err_mr_table_free;
2192 err = mlx4_config_mad_demux(dev);
2194 mlx4_err(dev, "Failed in config_mad_demux, aborting\n");
2195 goto err_mcg_table_free;
2199 err = mlx4_init_eq_table(dev);
2201 mlx4_err(dev, "Failed to initialize event queue table, aborting\n");
2202 goto err_mcg_table_free;
2205 err = mlx4_cmd_use_events(dev);
2207 mlx4_err(dev, "Failed to switch to event-driven firmware commands, aborting\n");
2208 goto err_eq_table_free;
2211 err = mlx4_NOP(dev);
2213 if (dev->flags & MLX4_FLAG_MSI_X) {
2214 mlx4_warn(dev, "NOP command failed to generate MSI-X interrupt IRQ %d)\n",
2215 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
2216 mlx4_warn(dev, "Trying again without MSI-X\n");
2218 mlx4_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting\n",
2219 priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
2220 mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
2226 mlx4_dbg(dev, "NOP command IRQ test passed\n");
2228 err = mlx4_init_cq_table(dev);
2230 mlx4_err(dev, "Failed to initialize completion queue table, aborting\n");
2234 err = mlx4_init_srq_table(dev);
2236 mlx4_err(dev, "Failed to initialize shared receive queue table, aborting\n");
2237 goto err_cq_table_free;
2240 err = mlx4_init_qp_table(dev);
2242 mlx4_err(dev, "Failed to initialize queue pair table, aborting\n");
2243 goto err_srq_table_free;
2246 err = mlx4_init_counters_table(dev);
2247 if (err && err != -ENOENT) {
2248 mlx4_err(dev, "Failed to initialize counters table, aborting\n");
2249 goto err_qp_table_free;
2252 if (!mlx4_is_slave(dev)) {
2253 for (port = 1; port <= dev->caps.num_ports; port++) {
2254 ib_port_default_caps = 0;
2255 err = mlx4_get_port_ib_caps(dev, port,
2256 &ib_port_default_caps);
2258 mlx4_warn(dev, "failed to get port %d default ib capabilities (%d). Continuing with caps = 0\n",
2260 dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
2262 /* initialize per-slave default ib port capabilities */
2263 if (mlx4_is_master(dev)) {
2265 for (i = 0; i < dev->num_slaves; i++) {
2266 if (i == mlx4_master_func_num(dev))
2268 priv->mfunc.master.slave_state[i].ib_cap_mask[port] =
2269 ib_port_default_caps;
2273 if (mlx4_is_mfunc(dev))
2274 dev->caps.port_ib_mtu[port] = IB_MTU_2048;
2276 dev->caps.port_ib_mtu[port] = IB_MTU_4096;
2278 err = mlx4_SET_PORT(dev, port, mlx4_is_master(dev) ?
2279 dev->caps.pkey_table_len[port] : -1);
2281 mlx4_err(dev, "Failed to set port %d, aborting\n",
2283 goto err_counters_table_free;
2290 err_counters_table_free:
2291 mlx4_cleanup_counters_table(dev);
2294 mlx4_cleanup_qp_table(dev);
2297 mlx4_cleanup_srq_table(dev);
2300 mlx4_cleanup_cq_table(dev);
2303 mlx4_cmd_use_polling(dev);
2306 mlx4_cleanup_eq_table(dev);
2309 if (!mlx4_is_slave(dev))
2310 mlx4_cleanup_mcg_table(dev);
2313 mlx4_cleanup_mr_table(dev);
2315 err_xrcd_table_free:
2316 mlx4_cleanup_xrcd_table(dev);
2319 mlx4_cleanup_pd_table(dev);
2325 mlx4_uar_free(dev, &priv->driver_uar);
2328 mlx4_cleanup_uar_table(dev);
2332 static void mlx4_enable_msi_x(struct mlx4_dev *dev)
2334 struct mlx4_priv *priv = mlx4_priv(dev);
2335 struct msix_entry *entries;
2339 int nreq = dev->caps.num_ports * num_online_cpus() + MSIX_LEGACY_SZ;
2341 nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
2344 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
2348 for (i = 0; i < nreq; ++i)
2349 entries[i].entry = i;
2351 nreq = pci_enable_msix_range(dev->persist->pdev, entries, 2,
2357 } else if (nreq < MSIX_LEGACY_SZ +
2358 dev->caps.num_ports * MIN_MSIX_P_PORT) {
2359 /*Working in legacy mode , all EQ's shared*/
2360 dev->caps.comp_pool = 0;
2361 dev->caps.num_comp_vectors = nreq - 1;
2363 dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ;
2364 dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
2366 for (i = 0; i < nreq; ++i)
2367 priv->eq_table.eq[i].irq = entries[i].vector;
2369 dev->flags |= MLX4_FLAG_MSI_X;
2376 dev->caps.num_comp_vectors = 1;
2377 dev->caps.comp_pool = 0;
2379 for (i = 0; i < 2; ++i)
2380 priv->eq_table.eq[i].irq = dev->persist->pdev->irq;
2383 static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
2385 struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
2390 if (!mlx4_is_slave(dev)) {
2391 mlx4_init_mac_table(dev, &info->mac_table);
2392 mlx4_init_vlan_table(dev, &info->vlan_table);
2393 mlx4_init_roce_gid_table(dev, &info->gid_table);
2394 info->base_qpn = mlx4_get_base_qpn(dev, port);
2397 sprintf(info->dev_name, "mlx4_port%d", port);
2398 info->port_attr.attr.name = info->dev_name;
2399 if (mlx4_is_mfunc(dev))
2400 info->port_attr.attr.mode = S_IRUGO;
2402 info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
2403 info->port_attr.store = set_port_type;
2405 info->port_attr.show = show_port_type;
2406 sysfs_attr_init(&info->port_attr.attr);
2408 err = device_create_file(&dev->persist->pdev->dev, &info->port_attr);
2410 mlx4_err(dev, "Failed to create file for port %d\n", port);
2414 sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port);
2415 info->port_mtu_attr.attr.name = info->dev_mtu_name;
2416 if (mlx4_is_mfunc(dev))
2417 info->port_mtu_attr.attr.mode = S_IRUGO;
2419 info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR;
2420 info->port_mtu_attr.store = set_port_ib_mtu;
2422 info->port_mtu_attr.show = show_port_ib_mtu;
2423 sysfs_attr_init(&info->port_mtu_attr.attr);
2425 err = device_create_file(&dev->persist->pdev->dev,
2426 &info->port_mtu_attr);
2428 mlx4_err(dev, "Failed to create mtu file for port %d\n", port);
2429 device_remove_file(&info->dev->persist->pdev->dev,
2437 static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
2442 device_remove_file(&info->dev->persist->pdev->dev, &info->port_attr);
2443 device_remove_file(&info->dev->persist->pdev->dev,
2444 &info->port_mtu_attr);
2447 static int mlx4_init_steering(struct mlx4_dev *dev)
2449 struct mlx4_priv *priv = mlx4_priv(dev);
2450 int num_entries = dev->caps.num_ports;
2453 priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
2457 for (i = 0; i < num_entries; i++)
2458 for (j = 0; j < MLX4_NUM_STEERS; j++) {
2459 INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
2460 INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
2465 static void mlx4_clear_steering(struct mlx4_dev *dev)
2467 struct mlx4_priv *priv = mlx4_priv(dev);
2468 struct mlx4_steer_index *entry, *tmp_entry;
2469 struct mlx4_promisc_qp *pqp, *tmp_pqp;
2470 int num_entries = dev->caps.num_ports;
2473 for (i = 0; i < num_entries; i++) {
2474 for (j = 0; j < MLX4_NUM_STEERS; j++) {
2475 list_for_each_entry_safe(pqp, tmp_pqp,
2476 &priv->steer[i].promisc_qps[j],
2478 list_del(&pqp->list);
2481 list_for_each_entry_safe(entry, tmp_entry,
2482 &priv->steer[i].steer_entries[j],
2484 list_del(&entry->list);
2485 list_for_each_entry_safe(pqp, tmp_pqp,
2488 list_del(&pqp->list);
2498 static int extended_func_num(struct pci_dev *pdev)
2500 return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn);
2503 #define MLX4_OWNER_BASE 0x8069c
2504 #define MLX4_OWNER_SIZE 4
2506 static int mlx4_get_ownership(struct mlx4_dev *dev)
2508 void __iomem *owner;
2511 if (pci_channel_offline(dev->persist->pdev))
2514 owner = ioremap(pci_resource_start(dev->persist->pdev, 0) +
2518 mlx4_err(dev, "Failed to obtain ownership bit\n");
2527 static void mlx4_free_ownership(struct mlx4_dev *dev)
2529 void __iomem *owner;
2531 if (pci_channel_offline(dev->persist->pdev))
2534 owner = ioremap(pci_resource_start(dev->persist->pdev, 0) +
2538 mlx4_err(dev, "Failed to obtain ownership bit\n");
2546 #define SRIOV_VALID_STATE(flags) (!!((flags) & MLX4_FLAG_SRIOV) ==\
2547 !!((flags) & MLX4_FLAG_MASTER))
2549 static u64 mlx4_enable_sriov(struct mlx4_dev *dev, struct pci_dev *pdev,
2550 u8 total_vfs, int existing_vfs, int reset_flow)
2552 u64 dev_flags = dev->flags;
2556 dev->dev_vfs = kcalloc(total_vfs, sizeof(*dev->dev_vfs),
2563 atomic_inc(&pf_loading);
2564 if (dev->flags & MLX4_FLAG_SRIOV) {
2565 if (existing_vfs != total_vfs) {
2566 mlx4_err(dev, "SR-IOV was already enabled, but with num_vfs (%d) different than requested (%d)\n",
2567 existing_vfs, total_vfs);
2568 total_vfs = existing_vfs;
2572 dev->dev_vfs = kzalloc(total_vfs * sizeof(*dev->dev_vfs), GFP_KERNEL);
2573 if (NULL == dev->dev_vfs) {
2574 mlx4_err(dev, "Failed to allocate memory for VFs\n");
2578 if (!(dev->flags & MLX4_FLAG_SRIOV)) {
2579 mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", total_vfs);
2580 err = pci_enable_sriov(pdev, total_vfs);
2583 mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d)\n",
2587 mlx4_warn(dev, "Running in master mode\n");
2588 dev_flags |= MLX4_FLAG_SRIOV |
2590 dev_flags &= ~MLX4_FLAG_SLAVE;
2591 dev->persist->num_vfs = total_vfs;
2596 atomic_dec(&pf_loading);
2598 dev->persist->num_vfs = 0;
2599 kfree(dev->dev_vfs);
2600 return dev_flags & ~MLX4_FLAG_MASTER;
2604 MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64 = -1,
2607 static int mlx4_check_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
2610 int requested_vfs = nvfs[0] + nvfs[1] + nvfs[2];
2611 /* Checking for 64 VFs as a limitation of CX2 */
2612 if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_80_VFS) &&
2613 requested_vfs >= 64) {
2614 mlx4_err(dev, "Requested %d VFs, but FW does not support more than 64\n",
2616 return MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64;
2621 static int mlx4_load_one(struct pci_dev *pdev, int pci_dev_data,
2622 int total_vfs, int *nvfs, struct mlx4_priv *priv,
2625 struct mlx4_dev *dev;
2630 struct mlx4_dev_cap *dev_cap = NULL;
2631 int existing_vfs = 0;
2635 INIT_LIST_HEAD(&priv->ctx_list);
2636 spin_lock_init(&priv->ctx_lock);
2638 mutex_init(&priv->port_mutex);
2640 INIT_LIST_HEAD(&priv->pgdir_list);
2641 mutex_init(&priv->pgdir_mutex);
2643 INIT_LIST_HEAD(&priv->bf_list);
2644 mutex_init(&priv->bf_mutex);
2646 dev->rev_id = pdev->revision;
2647 dev->numa_node = dev_to_node(&pdev->dev);
2649 /* Detect if this device is a virtual function */
2650 if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
2651 mlx4_warn(dev, "Detected virtual function - running in slave mode\n");
2652 dev->flags |= MLX4_FLAG_SLAVE;
2654 /* We reset the device and enable SRIOV only for physical
2655 * devices. Try to claim ownership on the device;
2656 * if already taken, skip -- do not allow multiple PFs */
2657 err = mlx4_get_ownership(dev);
2662 mlx4_warn(dev, "Multiple PFs not yet supported - Skipping PF\n");
2667 atomic_set(&priv->opreq_count, 0);
2668 INIT_WORK(&priv->opreq_task, mlx4_opreq_action);
2671 * Now reset the HCA before we touch the PCI capabilities or
2672 * attempt a firmware command, since a boot ROM may have left
2673 * the HCA in an undefined state.
2675 err = mlx4_reset(dev);
2677 mlx4_err(dev, "Failed to reset HCA, aborting\n");
2682 dev->flags = MLX4_FLAG_MASTER;
2683 existing_vfs = pci_num_vf(pdev);
2685 dev->flags |= MLX4_FLAG_SRIOV;
2686 dev->persist->num_vfs = total_vfs;
2690 /* on load remove any previous indication of internal error,
2693 dev->persist->state = MLX4_DEVICE_STATE_UP;
2696 err = mlx4_cmd_init(dev);
2698 mlx4_err(dev, "Failed to init command interface, aborting\n");
2702 /* In slave functions, the communication channel must be initialized
2703 * before posting commands. Also, init num_slaves before calling
2705 if (mlx4_is_mfunc(dev)) {
2706 if (mlx4_is_master(dev)) {
2707 dev->num_slaves = MLX4_MAX_NUM_SLAVES;
2710 dev->num_slaves = 0;
2711 err = mlx4_multi_func_init(dev);
2713 mlx4_err(dev, "Failed to init slave mfunc interface, aborting\n");
2719 err = mlx4_init_fw(dev);
2721 mlx4_err(dev, "Failed to init fw, aborting.\n");
2725 if (mlx4_is_master(dev)) {
2726 /* when we hit the goto slave_start below, dev_cap already initialized */
2728 dev_cap = kzalloc(sizeof(*dev_cap), GFP_KERNEL);
2735 err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
2737 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
2741 if (mlx4_check_dev_cap(dev, dev_cap, nvfs))
2744 if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) {
2745 u64 dev_flags = mlx4_enable_sriov(dev, pdev,
2750 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
2751 dev->flags = dev_flags;
2752 if (!SRIOV_VALID_STATE(dev->flags)) {
2753 mlx4_err(dev, "Invalid SRIOV state\n");
2756 err = mlx4_reset(dev);
2758 mlx4_err(dev, "Failed to reset HCA, aborting.\n");
2764 /* Legacy mode FW requires SRIOV to be enabled before
2765 * doing QUERY_DEV_CAP, since max_eq's value is different if
2768 memset(dev_cap, 0, sizeof(*dev_cap));
2769 err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
2771 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
2775 if (mlx4_check_dev_cap(dev, dev_cap, nvfs))
2780 err = mlx4_init_hca(dev);
2782 if (err == -EACCES) {
2783 /* Not primary Physical function
2784 * Running in slave mode */
2785 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
2786 /* We're not a PF */
2787 if (dev->flags & MLX4_FLAG_SRIOV) {
2789 pci_disable_sriov(pdev);
2790 if (mlx4_is_master(dev) && !reset_flow)
2791 atomic_dec(&pf_loading);
2792 dev->flags &= ~MLX4_FLAG_SRIOV;
2794 if (!mlx4_is_slave(dev))
2795 mlx4_free_ownership(dev);
2796 dev->flags |= MLX4_FLAG_SLAVE;
2797 dev->flags &= ~MLX4_FLAG_MASTER;
2803 if (mlx4_is_master(dev) && (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) {
2804 u64 dev_flags = mlx4_enable_sriov(dev, pdev, total_vfs,
2805 existing_vfs, reset_flow);
2807 if ((dev->flags ^ dev_flags) & (MLX4_FLAG_MASTER | MLX4_FLAG_SLAVE)) {
2808 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_VHCR);
2809 dev->flags = dev_flags;
2810 err = mlx4_cmd_init(dev);
2812 /* Only VHCR is cleaned up, so could still
2815 mlx4_err(dev, "Failed to init VHCR command interface, aborting\n");
2819 dev->flags = dev_flags;
2822 if (!SRIOV_VALID_STATE(dev->flags)) {
2823 mlx4_err(dev, "Invalid SRIOV state\n");
2828 /* check if the device is functioning at its maximum possible speed.
2829 * No return code for this call, just warn the user in case of PCI
2830 * express device capabilities are under-satisfied by the bus.
2832 if (!mlx4_is_slave(dev))
2833 mlx4_check_pcie_caps(dev);
2835 /* In master functions, the communication channel must be initialized
2836 * after obtaining its address from fw */
2837 if (mlx4_is_master(dev)) {
2840 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
2844 (num_vfs_argc > 1 || probe_vfs_argc > 1)) {
2846 "Invalid syntax of num_vfs/probe_vfs with IB port - single port VFs syntax is only supported when all ports are configured as ethernet\n");
2850 if (dev->caps.num_ports < 2 &&
2854 "Error: Trying to configure VFs on port 2, but HCA has only %d physical ports\n",
2855 dev->caps.num_ports);
2858 memcpy(dev->persist->nvfs, nvfs, sizeof(dev->persist->nvfs));
2861 i < sizeof(dev->persist->nvfs)/
2862 sizeof(dev->persist->nvfs[0]); i++) {
2865 for (j = 0; j < dev->persist->nvfs[i]; ++sum, ++j) {
2866 dev->dev_vfs[sum].min_port = i < 2 ? i + 1 : 1;
2867 dev->dev_vfs[sum].n_ports = i < 2 ? 1 :
2868 dev->caps.num_ports;
2872 /* In master functions, the communication channel
2873 * must be initialized after obtaining its address from fw
2875 err = mlx4_multi_func_init(dev);
2877 mlx4_err(dev, "Failed to init master mfunc interface, aborting.\n");
2882 err = mlx4_alloc_eq_table(dev);
2884 goto err_master_mfunc;
2886 priv->msix_ctl.pool_bm = 0;
2887 mutex_init(&priv->msix_ctl.pool_lock);
2889 mlx4_enable_msi_x(dev);
2890 if ((mlx4_is_mfunc(dev)) &&
2891 !(dev->flags & MLX4_FLAG_MSI_X)) {
2893 mlx4_err(dev, "INTx is not supported in multi-function mode, aborting\n");
2897 if (!mlx4_is_slave(dev)) {
2898 err = mlx4_init_steering(dev);
2900 goto err_disable_msix;
2903 err = mlx4_setup_hca(dev);
2904 if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) &&
2905 !mlx4_is_mfunc(dev)) {
2906 dev->flags &= ~MLX4_FLAG_MSI_X;
2907 dev->caps.num_comp_vectors = 1;
2908 dev->caps.comp_pool = 0;
2909 pci_disable_msix(pdev);
2910 err = mlx4_setup_hca(dev);
2916 mlx4_init_quotas(dev);
2917 /* When PF resources are ready arm its comm channel to enable
2920 if (mlx4_is_master(dev)) {
2921 err = mlx4_ARM_COMM_CHANNEL(dev);
2923 mlx4_err(dev, " Failed to arm comm channel eq: %x\n",
2929 for (port = 1; port <= dev->caps.num_ports; port++) {
2930 err = mlx4_init_port_info(dev, port);
2935 err = mlx4_register_device(dev);
2939 mlx4_request_modules(dev);
2941 mlx4_sense_init(dev);
2942 mlx4_start_sense(dev);
2946 if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow)
2947 atomic_dec(&pf_loading);
2953 for (--port; port >= 1; --port)
2954 mlx4_cleanup_port_info(&priv->port[port]);
2956 mlx4_cleanup_counters_table(dev);
2957 mlx4_cleanup_qp_table(dev);
2958 mlx4_cleanup_srq_table(dev);
2959 mlx4_cleanup_cq_table(dev);
2960 mlx4_cmd_use_polling(dev);
2961 mlx4_cleanup_eq_table(dev);
2962 mlx4_cleanup_mcg_table(dev);
2963 mlx4_cleanup_mr_table(dev);
2964 mlx4_cleanup_xrcd_table(dev);
2965 mlx4_cleanup_pd_table(dev);
2966 mlx4_cleanup_uar_table(dev);
2969 if (!mlx4_is_slave(dev))
2970 mlx4_clear_steering(dev);
2973 if (dev->flags & MLX4_FLAG_MSI_X)
2974 pci_disable_msix(pdev);
2977 mlx4_free_eq_table(dev);
2980 if (mlx4_is_master(dev))
2981 mlx4_multi_func_cleanup(dev);
2983 if (mlx4_is_slave(dev)) {
2984 kfree(dev->caps.qp0_qkey);
2985 kfree(dev->caps.qp0_tunnel);
2986 kfree(dev->caps.qp0_proxy);
2987 kfree(dev->caps.qp1_tunnel);
2988 kfree(dev->caps.qp1_proxy);
2992 mlx4_close_hca(dev);
2998 if (mlx4_is_slave(dev))
2999 mlx4_multi_func_cleanup(dev);
3002 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
3005 if (dev->flags & MLX4_FLAG_SRIOV && !existing_vfs) {
3006 pci_disable_sriov(pdev);
3007 dev->flags &= ~MLX4_FLAG_SRIOV;
3010 if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow)
3011 atomic_dec(&pf_loading);
3013 kfree(priv->dev.dev_vfs);
3015 if (!mlx4_is_slave(dev))
3016 mlx4_free_ownership(dev);
3022 static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data,
3023 struct mlx4_priv *priv)
3026 int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
3027 int prb_vf[MLX4_MAX_PORTS + 1] = {0, 0, 0};
3028 const int param_map[MLX4_MAX_PORTS + 1][MLX4_MAX_PORTS + 1] = {
3029 {2, 0, 0}, {0, 1, 2}, {0, 1, 2} };
3030 unsigned total_vfs = 0;
3033 pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
3035 err = pci_enable_device(pdev);
3037 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
3041 /* Due to requirement that all VFs and the PF are *guaranteed* 2 MACS
3042 * per port, we must limit the number of VFs to 63 (since their are
3045 for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) && i < num_vfs_argc;
3046 total_vfs += nvfs[param_map[num_vfs_argc - 1][i]], i++) {
3047 nvfs[param_map[num_vfs_argc - 1][i]] = num_vfs[i];
3049 dev_err(&pdev->dev, "num_vfs module parameter cannot be negative\n");
3051 goto err_disable_pdev;
3054 for (i = 0; i < sizeof(prb_vf)/sizeof(prb_vf[0]) && i < probe_vfs_argc;
3056 prb_vf[param_map[probe_vfs_argc - 1][i]] = probe_vf[i];
3057 if (prb_vf[i] < 0 || prb_vf[i] > nvfs[i]) {
3058 dev_err(&pdev->dev, "probe_vf module parameter cannot be negative or greater than num_vfs\n");
3060 goto err_disable_pdev;
3063 if (total_vfs >= MLX4_MAX_NUM_VF) {
3065 "Requested more VF's (%d) than allowed (%d)\n",
3066 total_vfs, MLX4_MAX_NUM_VF - 1);
3068 goto err_disable_pdev;
3071 for (i = 0; i < MLX4_MAX_PORTS; i++) {
3072 if (nvfs[i] + nvfs[2] >= MLX4_MAX_NUM_VF_P_PORT) {
3074 "Requested more VF's (%d) for port (%d) than allowed (%d)\n",
3075 nvfs[i] + nvfs[2], i + 1,
3076 MLX4_MAX_NUM_VF_P_PORT - 1);
3078 goto err_disable_pdev;
3082 /* Check for BARs. */
3083 if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) &&
3084 !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
3085 dev_err(&pdev->dev, "Missing DCS, aborting (driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n",
3086 pci_dev_data, pci_resource_flags(pdev, 0));
3088 goto err_disable_pdev;
3090 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
3091 dev_err(&pdev->dev, "Missing UAR, aborting\n");
3093 goto err_disable_pdev;
3096 err = pci_request_regions(pdev, DRV_NAME);
3098 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
3099 goto err_disable_pdev;
3102 pci_set_master(pdev);
3104 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
3106 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask\n");
3107 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3109 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting\n");
3110 goto err_release_regions;
3113 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
3115 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit consistent PCI DMA mask\n");
3116 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
3118 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, aborting\n");
3119 goto err_release_regions;
3123 /* Allow large DMA segments, up to the firmware limit of 1 GB */
3124 dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
3125 /* Detect if this device is a virtual function */
3126 if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
3127 /* When acting as pf, we normally skip vfs unless explicitly
3128 * requested to probe them.
3131 unsigned vfs_offset = 0;
3133 for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) &&
3134 vfs_offset + nvfs[i] < extended_func_num(pdev);
3135 vfs_offset += nvfs[i], i++)
3137 if (i == sizeof(nvfs)/sizeof(nvfs[0])) {
3139 goto err_release_regions;
3141 if ((extended_func_num(pdev) - vfs_offset)
3143 dev_warn(&pdev->dev, "Skipping virtual function:%d\n",
3144 extended_func_num(pdev));
3146 goto err_release_regions;
3151 err = mlx4_catas_init(&priv->dev);
3153 goto err_release_regions;
3155 err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 0);
3162 mlx4_catas_end(&priv->dev);
3164 err_release_regions:
3165 pci_release_regions(pdev);
3168 pci_disable_device(pdev);
3169 pci_set_drvdata(pdev, NULL);
3173 static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
3175 struct mlx4_priv *priv;
3176 struct mlx4_dev *dev;
3179 printk_once(KERN_INFO "%s", mlx4_version);
3181 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
3186 dev->persist = kzalloc(sizeof(*dev->persist), GFP_KERNEL);
3187 if (!dev->persist) {
3191 dev->persist->pdev = pdev;
3192 dev->persist->dev = dev;
3193 pci_set_drvdata(pdev, dev->persist);
3194 priv->pci_dev_data = id->driver_data;
3195 mutex_init(&dev->persist->device_state_mutex);
3196 mutex_init(&dev->persist->interface_state_mutex);
3198 ret = __mlx4_init_one(pdev, id->driver_data, priv);
3200 kfree(dev->persist);
3203 pci_save_state(pdev);
3209 static void mlx4_clean_dev(struct mlx4_dev *dev)
3211 struct mlx4_dev_persistent *persist = dev->persist;
3212 struct mlx4_priv *priv = mlx4_priv(dev);
3213 unsigned long flags = (dev->flags & RESET_PERSIST_MASK_FLAGS);
3215 memset(priv, 0, sizeof(*priv));
3216 priv->dev.persist = persist;
3217 priv->dev.flags = flags;
3220 static void mlx4_unload_one(struct pci_dev *pdev)
3222 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3223 struct mlx4_dev *dev = persist->dev;
3224 struct mlx4_priv *priv = mlx4_priv(dev);
3231 /* saving current ports type for further use */
3232 for (i = 0; i < dev->caps.num_ports; i++) {
3233 dev->persist->curr_port_type[i] = dev->caps.port_type[i + 1];
3234 dev->persist->curr_port_poss_type[i] = dev->caps.
3235 possible_type[i + 1];
3238 pci_dev_data = priv->pci_dev_data;
3240 mlx4_stop_sense(dev);
3241 mlx4_unregister_device(dev);
3243 for (p = 1; p <= dev->caps.num_ports; p++) {
3244 mlx4_cleanup_port_info(&priv->port[p]);
3245 mlx4_CLOSE_PORT(dev, p);
3248 if (mlx4_is_master(dev))
3249 mlx4_free_resource_tracker(dev,
3250 RES_TR_FREE_SLAVES_ONLY);
3252 mlx4_cleanup_counters_table(dev);
3253 mlx4_cleanup_qp_table(dev);
3254 mlx4_cleanup_srq_table(dev);
3255 mlx4_cleanup_cq_table(dev);
3256 mlx4_cmd_use_polling(dev);
3257 mlx4_cleanup_eq_table(dev);
3258 mlx4_cleanup_mcg_table(dev);
3259 mlx4_cleanup_mr_table(dev);
3260 mlx4_cleanup_xrcd_table(dev);
3261 mlx4_cleanup_pd_table(dev);
3263 if (mlx4_is_master(dev))
3264 mlx4_free_resource_tracker(dev,
3265 RES_TR_FREE_STRUCTS_ONLY);
3268 mlx4_uar_free(dev, &priv->driver_uar);
3269 mlx4_cleanup_uar_table(dev);
3270 if (!mlx4_is_slave(dev))
3271 mlx4_clear_steering(dev);
3272 mlx4_free_eq_table(dev);
3273 if (mlx4_is_master(dev))
3274 mlx4_multi_func_cleanup(dev);
3275 mlx4_close_hca(dev);
3277 if (mlx4_is_slave(dev))
3278 mlx4_multi_func_cleanup(dev);
3279 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
3281 if (dev->flags & MLX4_FLAG_MSI_X)
3282 pci_disable_msix(pdev);
3284 if (!mlx4_is_slave(dev))
3285 mlx4_free_ownership(dev);
3287 kfree(dev->caps.qp0_qkey);
3288 kfree(dev->caps.qp0_tunnel);
3289 kfree(dev->caps.qp0_proxy);
3290 kfree(dev->caps.qp1_tunnel);
3291 kfree(dev->caps.qp1_proxy);
3292 kfree(dev->dev_vfs);
3294 mlx4_clean_dev(dev);
3295 priv->pci_dev_data = pci_dev_data;
3299 static void mlx4_remove_one(struct pci_dev *pdev)
3301 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3302 struct mlx4_dev *dev = persist->dev;
3303 struct mlx4_priv *priv = mlx4_priv(dev);
3306 mutex_lock(&persist->interface_state_mutex);
3307 persist->interface_state |= MLX4_INTERFACE_STATE_DELETION;
3308 mutex_unlock(&persist->interface_state_mutex);
3310 /* Disabling SR-IOV is not allowed while there are active vf's */
3311 if (mlx4_is_master(dev) && dev->flags & MLX4_FLAG_SRIOV) {
3312 active_vfs = mlx4_how_many_lives_vf(dev);
3314 pr_warn("Removing PF when there are active VF's !!\n");
3315 pr_warn("Will not disable SR-IOV.\n");
3319 /* device marked to be under deletion running now without the lock
3320 * letting other tasks to be terminated
3322 if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
3323 mlx4_unload_one(pdev);
3325 mlx4_info(dev, "%s: interface is down\n", __func__);
3326 mlx4_catas_end(dev);
3327 if (dev->flags & MLX4_FLAG_SRIOV && !active_vfs) {
3328 mlx4_warn(dev, "Disabling SR-IOV\n");
3329 pci_disable_sriov(pdev);
3332 pci_release_regions(pdev);
3333 pci_disable_device(pdev);
3334 kfree(dev->persist);
3336 pci_set_drvdata(pdev, NULL);
3339 static int restore_current_port_types(struct mlx4_dev *dev,
3340 enum mlx4_port_type *types,
3341 enum mlx4_port_type *poss_types)
3343 struct mlx4_priv *priv = mlx4_priv(dev);
3346 mlx4_stop_sense(dev);
3348 mutex_lock(&priv->port_mutex);
3349 for (i = 0; i < dev->caps.num_ports; i++)
3350 dev->caps.possible_type[i + 1] = poss_types[i];
3351 err = mlx4_change_port_types(dev, types);
3352 mlx4_start_sense(dev);
3353 mutex_unlock(&priv->port_mutex);
3358 int mlx4_restart_one(struct pci_dev *pdev)
3360 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3361 struct mlx4_dev *dev = persist->dev;
3362 struct mlx4_priv *priv = mlx4_priv(dev);
3363 int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
3364 int pci_dev_data, err, total_vfs;
3366 pci_dev_data = priv->pci_dev_data;
3367 total_vfs = dev->persist->num_vfs;
3368 memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs));
3370 mlx4_unload_one(pdev);
3371 err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 1);
3373 mlx4_err(dev, "%s: ERROR: mlx4_load_one failed, pci_name=%s, err=%d\n",
3374 __func__, pci_name(pdev), err);
3378 err = restore_current_port_types(dev, dev->persist->curr_port_type,
3379 dev->persist->curr_port_poss_type);
3381 mlx4_err(dev, "could not restore original port types (%d)\n",
3387 static const struct pci_device_id mlx4_pci_table[] = {
3388 /* MT25408 "Hermon" SDR */
3389 { PCI_VDEVICE(MELLANOX, 0x6340), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3390 /* MT25408 "Hermon" DDR */
3391 { PCI_VDEVICE(MELLANOX, 0x634a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3392 /* MT25408 "Hermon" QDR */
3393 { PCI_VDEVICE(MELLANOX, 0x6354), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3394 /* MT25408 "Hermon" DDR PCIe gen2 */
3395 { PCI_VDEVICE(MELLANOX, 0x6732), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3396 /* MT25408 "Hermon" QDR PCIe gen2 */
3397 { PCI_VDEVICE(MELLANOX, 0x673c), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3398 /* MT25408 "Hermon" EN 10GigE */
3399 { PCI_VDEVICE(MELLANOX, 0x6368), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3400 /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
3401 { PCI_VDEVICE(MELLANOX, 0x6750), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3402 /* MT25458 ConnectX EN 10GBASE-T 10GigE */
3403 { PCI_VDEVICE(MELLANOX, 0x6372), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3404 /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
3405 { PCI_VDEVICE(MELLANOX, 0x675a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3406 /* MT26468 ConnectX EN 10GigE PCIe gen2*/
3407 { PCI_VDEVICE(MELLANOX, 0x6764), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3408 /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
3409 { PCI_VDEVICE(MELLANOX, 0x6746), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3410 /* MT26478 ConnectX2 40GigE PCIe gen2 */
3411 { PCI_VDEVICE(MELLANOX, 0x676e), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3412 /* MT25400 Family [ConnectX-2 Virtual Function] */
3413 { PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF },
3414 /* MT27500 Family [ConnectX-3] */
3415 { PCI_VDEVICE(MELLANOX, 0x1003), 0 },
3416 /* MT27500 Family [ConnectX-3 Virtual Function] */
3417 { PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF },
3418 { PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
3419 { PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
3420 { PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
3421 { PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */
3422 { PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */
3423 { PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */
3424 { PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */
3425 { PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */
3426 { PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */
3427 { PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */
3428 { PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */
3429 { PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */
3433 MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
3435 static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
3436 pci_channel_state_t state)
3438 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3440 mlx4_err(persist->dev, "mlx4_pci_err_detected was called\n");
3441 mlx4_enter_error_state(persist);
3443 mutex_lock(&persist->interface_state_mutex);
3444 if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
3445 mlx4_unload_one(pdev);
3447 mutex_unlock(&persist->interface_state_mutex);
3448 if (state == pci_channel_io_perm_failure)
3449 return PCI_ERS_RESULT_DISCONNECT;
3451 pci_disable_device(pdev);
3452 return PCI_ERS_RESULT_NEED_RESET;
3455 static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
3457 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3458 struct mlx4_dev *dev = persist->dev;
3459 struct mlx4_priv *priv = mlx4_priv(dev);
3461 int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
3464 mlx4_err(dev, "mlx4_pci_slot_reset was called\n");
3465 ret = pci_enable_device(pdev);
3467 mlx4_err(dev, "Can not re-enable device, ret=%d\n", ret);
3468 return PCI_ERS_RESULT_DISCONNECT;
3471 pci_set_master(pdev);
3472 pci_restore_state(pdev);
3473 pci_save_state(pdev);
3475 total_vfs = dev->persist->num_vfs;
3476 memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs));
3478 mutex_lock(&persist->interface_state_mutex);
3479 if (!(persist->interface_state & MLX4_INTERFACE_STATE_UP)) {
3480 ret = mlx4_load_one(pdev, priv->pci_dev_data, total_vfs, nvfs,
3483 mlx4_err(dev, "%s: mlx4_load_one failed, ret=%d\n",
3488 ret = restore_current_port_types(dev, dev->persist->
3489 curr_port_type, dev->persist->
3490 curr_port_poss_type);
3492 mlx4_err(dev, "could not restore original port types (%d)\n", ret);
3495 mutex_unlock(&persist->interface_state_mutex);
3497 return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
3500 static void mlx4_shutdown(struct pci_dev *pdev)
3502 struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3504 mlx4_info(persist->dev, "mlx4_shutdown was called\n");
3505 mutex_lock(&persist->interface_state_mutex);
3506 if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
3507 mlx4_unload_one(pdev);
3508 mutex_unlock(&persist->interface_state_mutex);
3511 static const struct pci_error_handlers mlx4_err_handler = {
3512 .error_detected = mlx4_pci_err_detected,
3513 .slot_reset = mlx4_pci_slot_reset,
3516 static struct pci_driver mlx4_driver = {
3518 .id_table = mlx4_pci_table,
3519 .probe = mlx4_init_one,
3520 .shutdown = mlx4_shutdown,
3521 .remove = mlx4_remove_one,
3522 .err_handler = &mlx4_err_handler,
3525 static int __init mlx4_verify_params(void)
3527 if ((log_num_mac < 0) || (log_num_mac > 7)) {
3528 pr_warn("mlx4_core: bad num_mac: %d\n", log_num_mac);
3532 if (log_num_vlan != 0)
3533 pr_warn("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
3534 MLX4_LOG_NUM_VLANS);
3537 pr_warn("mlx4_core: use_prio - obsolete module param, ignored\n");
3539 if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
3540 pr_warn("mlx4_core: bad log_mtts_per_seg: %d\n",
3545 /* Check if module param for ports type has legal combination */
3546 if (port_type_array[0] == false && port_type_array[1] == true) {
3547 pr_warn("Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n");
3548 port_type_array[0] = true;
3551 if (mlx4_log_num_mgm_entry_size < -7 ||
3552 (mlx4_log_num_mgm_entry_size > 0 &&
3553 (mlx4_log_num_mgm_entry_size < MLX4_MIN_MGM_LOG_ENTRY_SIZE ||
3554 mlx4_log_num_mgm_entry_size > MLX4_MAX_MGM_LOG_ENTRY_SIZE))) {
3555 pr_warn("mlx4_core: mlx4_log_num_mgm_entry_size (%d) not in legal range (-7..0 or %d..%d)\n",
3556 mlx4_log_num_mgm_entry_size,
3557 MLX4_MIN_MGM_LOG_ENTRY_SIZE,
3558 MLX4_MAX_MGM_LOG_ENTRY_SIZE);
3565 static int __init mlx4_init(void)
3569 if (mlx4_verify_params())
3573 mlx4_wq = create_singlethread_workqueue("mlx4");
3577 ret = pci_register_driver(&mlx4_driver);
3579 destroy_workqueue(mlx4_wq);
3580 return ret < 0 ? ret : 0;
3583 static void __exit mlx4_cleanup(void)
3585 pci_unregister_driver(&mlx4_driver);
3586 destroy_workqueue(mlx4_wq);
3589 module_init(mlx4_init);
3590 module_exit(mlx4_cleanup);