2 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/module.h>
35 #include <linux/init.h>
36 #include <linux/slab.h>
37 #include <linux/errno.h>
38 #include <linux/netdevice.h>
39 #include <linux/inetdevice.h>
40 #include <linux/rtnetlink.h>
41 #include <linux/if_vlan.h>
43 #include <rdma/ib_smi.h>
44 #include <rdma/ib_user_verbs.h>
45 #include <rdma/ib_addr.h>
47 #include <linux/mlx4/driver.h>
48 #include <linux/mlx4/cmd.h>
53 #define DRV_NAME MLX4_IB_DRV_NAME
54 #define DRV_VERSION "1.0"
55 #define DRV_RELDATE "April 4, 2008"
57 MODULE_AUTHOR("Roland Dreier");
58 MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
59 MODULE_LICENSE("Dual BSD/GPL");
60 MODULE_VERSION(DRV_VERSION);
62 int mlx4_ib_sm_guid_assign = 1;
63 module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444);
64 MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 1)");
66 static const char mlx4_ib_version[] =
67 DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
68 DRV_VERSION " (" DRV_RELDATE ")\n";
70 struct update_gid_work {
71 struct work_struct work;
72 union ib_gid gids[128];
73 struct mlx4_ib_dev *dev;
77 static struct workqueue_struct *wq;
79 static void init_query_mad(struct ib_smp *mad)
81 mad->base_version = 1;
82 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
83 mad->class_version = 1;
84 mad->method = IB_MGMT_METHOD_GET;
87 static union ib_gid zgid;
89 static int mlx4_ib_query_device(struct ib_device *ibdev,
90 struct ib_device_attr *props)
92 struct mlx4_ib_dev *dev = to_mdev(ibdev);
93 struct ib_smp *in_mad = NULL;
94 struct ib_smp *out_mad = NULL;
97 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
98 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
99 if (!in_mad || !out_mad)
102 init_query_mad(in_mad);
103 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
105 err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS,
106 1, NULL, NULL, in_mad, out_mad);
110 memset(props, 0, sizeof *props);
112 props->fw_ver = dev->dev->caps.fw_ver;
113 props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
114 IB_DEVICE_PORT_ACTIVE_EVENT |
115 IB_DEVICE_SYS_IMAGE_GUID |
116 IB_DEVICE_RC_RNR_NAK_GEN |
117 IB_DEVICE_BLOCK_MULTICAST_LOOPBACK;
118 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
119 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
120 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
121 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
122 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM)
123 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
124 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
125 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
126 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
127 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
128 if (dev->dev->caps.max_gso_sz && dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH)
129 props->device_cap_flags |= IB_DEVICE_UD_TSO;
130 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY)
131 props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY;
132 if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) &&
133 (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) &&
134 (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR))
135 props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
136 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)
137 props->device_cap_flags |= IB_DEVICE_XRC;
139 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
141 props->vendor_part_id = dev->dev->pdev->device;
142 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32));
143 memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
145 props->max_mr_size = ~0ull;
146 props->page_size_cap = dev->dev->caps.page_size_cap;
147 props->max_qp = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps;
148 props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE;
149 props->max_sge = min(dev->dev->caps.max_sq_sg,
150 dev->dev->caps.max_rq_sg);
151 props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs;
152 props->max_cqe = dev->dev->caps.max_cqes;
153 props->max_mr = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws;
154 props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
155 props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma;
156 props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
157 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
158 props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs;
159 props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1;
160 props->max_srq_sge = dev->dev->caps.max_srq_sge;
161 props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
162 props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay;
163 props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
164 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
165 props->masked_atomic_cap = props->atomic_cap;
166 props->max_pkeys = dev->dev->caps.pkey_table_len[1];
167 props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
168 props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
169 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
170 props->max_mcast_grp;
171 props->max_map_per_fmr = dev->dev->caps.max_fmr_maps;
180 static enum rdma_link_layer
181 mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
183 struct mlx4_dev *dev = to_mdev(device)->dev;
185 return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ?
186 IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
189 static int ib_link_query_port(struct ib_device *ibdev, u8 port,
190 struct ib_port_attr *props, int netw_view)
192 struct ib_smp *in_mad = NULL;
193 struct ib_smp *out_mad = NULL;
194 int ext_active_speed;
195 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
198 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
199 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
200 if (!in_mad || !out_mad)
203 init_query_mad(in_mad);
204 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
205 in_mad->attr_mod = cpu_to_be32(port);
207 if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
208 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
210 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
216 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
217 props->lmc = out_mad->data[34] & 0x7;
218 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
219 props->sm_sl = out_mad->data[36] & 0xf;
220 props->state = out_mad->data[32] & 0xf;
221 props->phys_state = out_mad->data[33] >> 4;
222 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
224 props->gid_tbl_len = out_mad->data[50];
226 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
227 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
228 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
229 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
230 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
231 props->active_width = out_mad->data[31] & 0xf;
232 props->active_speed = out_mad->data[35] >> 4;
233 props->max_mtu = out_mad->data[41] & 0xf;
234 props->active_mtu = out_mad->data[36] >> 4;
235 props->subnet_timeout = out_mad->data[51] & 0x1f;
236 props->max_vl_num = out_mad->data[37] >> 4;
237 props->init_type_reply = out_mad->data[41] >> 4;
239 /* Check if extended speeds (EDR/FDR/...) are supported */
240 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
241 ext_active_speed = out_mad->data[62] >> 4;
243 switch (ext_active_speed) {
245 props->active_speed = IB_SPEED_FDR;
248 props->active_speed = IB_SPEED_EDR;
253 /* If reported active speed is QDR, check if is FDR-10 */
254 if (props->active_speed == IB_SPEED_QDR) {
255 init_query_mad(in_mad);
256 in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
257 in_mad->attr_mod = cpu_to_be32(port);
259 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port,
260 NULL, NULL, in_mad, out_mad);
264 /* Checking LinkSpeedActive for FDR-10 */
265 if (out_mad->data[15] & 0x1)
266 props->active_speed = IB_SPEED_FDR10;
269 /* Avoid wrong speed value returned by FW if the IB link is down. */
270 if (props->state == IB_PORT_DOWN)
271 props->active_speed = IB_SPEED_SDR;
279 static u8 state_to_phys_state(enum ib_port_state state)
281 return state == IB_PORT_ACTIVE ? 5 : 3;
284 static int eth_link_query_port(struct ib_device *ibdev, u8 port,
285 struct ib_port_attr *props, int netw_view)
288 struct mlx4_ib_dev *mdev = to_mdev(ibdev);
289 struct mlx4_ib_iboe *iboe = &mdev->iboe;
290 struct net_device *ndev;
292 struct mlx4_cmd_mailbox *mailbox;
295 mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
297 return PTR_ERR(mailbox);
299 err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
300 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
305 props->active_width = (((u8 *)mailbox->buf)[5] == 0x40) ?
306 IB_WIDTH_4X : IB_WIDTH_1X;
307 props->active_speed = IB_SPEED_QDR;
308 props->port_cap_flags = IB_PORT_CM_SUP;
309 props->gid_tbl_len = mdev->dev->caps.gid_table_len[port];
310 props->max_msg_sz = mdev->dev->caps.max_msg_sz;
311 props->pkey_tbl_len = 1;
312 props->max_mtu = IB_MTU_4096;
313 props->max_vl_num = 2;
314 props->state = IB_PORT_DOWN;
315 props->phys_state = state_to_phys_state(props->state);
316 props->active_mtu = IB_MTU_256;
317 spin_lock(&iboe->lock);
318 ndev = iboe->netdevs[port - 1];
322 tmp = iboe_get_mtu(ndev->mtu);
323 props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
325 props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ?
326 IB_PORT_ACTIVE : IB_PORT_DOWN;
327 props->phys_state = state_to_phys_state(props->state);
329 spin_unlock(&iboe->lock);
331 mlx4_free_cmd_mailbox(mdev->dev, mailbox);
335 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
336 struct ib_port_attr *props, int netw_view)
340 memset(props, 0, sizeof *props);
342 err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
343 ib_link_query_port(ibdev, port, props, netw_view) :
344 eth_link_query_port(ibdev, port, props, netw_view);
349 static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
350 struct ib_port_attr *props)
352 /* returns host view */
353 return __mlx4_ib_query_port(ibdev, port, props, 0);
356 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
357 union ib_gid *gid, int netw_view)
359 struct ib_smp *in_mad = NULL;
360 struct ib_smp *out_mad = NULL;
362 struct mlx4_ib_dev *dev = to_mdev(ibdev);
364 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
366 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
367 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
368 if (!in_mad || !out_mad)
371 init_query_mad(in_mad);
372 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
373 in_mad->attr_mod = cpu_to_be32(port);
375 if (mlx4_is_mfunc(dev->dev) && netw_view)
376 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
378 err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad);
382 memcpy(gid->raw, out_mad->data + 8, 8);
384 if (mlx4_is_mfunc(dev->dev) && !netw_view) {
386 /* For any index > 0, return the null guid */
393 init_query_mad(in_mad);
394 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
395 in_mad->attr_mod = cpu_to_be32(index / 8);
397 err = mlx4_MAD_IFC(dev, mad_ifc_flags, port,
398 NULL, NULL, in_mad, out_mad);
402 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
406 memset(gid->raw + 8, 0, 8);
412 static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index,
415 struct mlx4_ib_dev *dev = to_mdev(ibdev);
417 *gid = dev->iboe.gid_table[port - 1][index];
422 static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
425 if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND)
426 return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
428 return iboe_query_gid(ibdev, port, index, gid);
431 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
432 u16 *pkey, int netw_view)
434 struct ib_smp *in_mad = NULL;
435 struct ib_smp *out_mad = NULL;
436 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
439 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
440 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
441 if (!in_mad || !out_mad)
444 init_query_mad(in_mad);
445 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
446 in_mad->attr_mod = cpu_to_be32(index / 32);
448 if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
449 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
451 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
456 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
464 static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
466 return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0);
469 static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
470 struct ib_device_modify *props)
472 struct mlx4_cmd_mailbox *mailbox;
475 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
478 if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
481 if (mlx4_is_slave(to_mdev(ibdev)->dev))
484 spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags);
485 memcpy(ibdev->node_desc, props->node_desc, 64);
486 spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags);
489 * If possible, pass node desc to FW, so it can generate
490 * a 144 trap. If cmd fails, just ignore.
492 mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
496 memset(mailbox->buf, 0, 256);
497 memcpy(mailbox->buf, props->node_desc, 64);
498 mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
499 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
501 mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
506 static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
509 struct mlx4_cmd_mailbox *mailbox;
511 u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
513 mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
515 return PTR_ERR(mailbox);
517 memset(mailbox->buf, 0, 256);
519 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
520 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6;
521 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
523 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols;
524 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
527 err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT,
528 MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
530 mlx4_free_cmd_mailbox(dev->dev, mailbox);
534 static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
535 struct ib_port_modify *props)
537 struct ib_port_attr attr;
541 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
543 err = mlx4_ib_query_port(ibdev, port, &attr);
547 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
548 ~props->clr_port_cap_mask;
550 err = mlx4_SET_PORT(to_mdev(ibdev), port,
551 !!(mask & IB_PORT_RESET_QKEY_CNTR),
555 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
559 static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
560 struct ib_udata *udata)
562 struct mlx4_ib_dev *dev = to_mdev(ibdev);
563 struct mlx4_ib_ucontext *context;
564 struct mlx4_ib_alloc_ucontext_resp resp;
568 return ERR_PTR(-EAGAIN);
570 resp.qp_tab_size = dev->dev->caps.num_qps;
571 resp.bf_reg_size = dev->dev->caps.bf_reg_size;
572 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
574 context = kmalloc(sizeof *context, GFP_KERNEL);
576 return ERR_PTR(-ENOMEM);
578 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
584 INIT_LIST_HEAD(&context->db_page_list);
585 mutex_init(&context->db_page_mutex);
587 err = ib_copy_to_udata(udata, &resp, sizeof resp);
589 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
591 return ERR_PTR(-EFAULT);
594 return &context->ibucontext;
597 static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
599 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
601 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
607 static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
609 struct mlx4_ib_dev *dev = to_mdev(context->device);
611 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
614 if (vma->vm_pgoff == 0) {
615 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
617 if (io_remap_pfn_range(vma, vma->vm_start,
618 to_mucontext(context)->uar.pfn,
619 PAGE_SIZE, vma->vm_page_prot))
621 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
622 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
624 if (io_remap_pfn_range(vma, vma->vm_start,
625 to_mucontext(context)->uar.pfn +
626 dev->dev->caps.num_uars,
627 PAGE_SIZE, vma->vm_page_prot))
635 static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
636 struct ib_ucontext *context,
637 struct ib_udata *udata)
639 struct mlx4_ib_pd *pd;
642 pd = kmalloc(sizeof *pd, GFP_KERNEL);
644 return ERR_PTR(-ENOMEM);
646 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
653 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
654 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
656 return ERR_PTR(-EFAULT);
662 static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
664 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
670 static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
671 struct ib_ucontext *context,
672 struct ib_udata *udata)
674 struct mlx4_ib_xrcd *xrcd;
677 if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
678 return ERR_PTR(-ENOSYS);
680 xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
682 return ERR_PTR(-ENOMEM);
684 err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
688 xrcd->pd = ib_alloc_pd(ibdev);
689 if (IS_ERR(xrcd->pd)) {
690 err = PTR_ERR(xrcd->pd);
694 xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0);
695 if (IS_ERR(xrcd->cq)) {
696 err = PTR_ERR(xrcd->cq);
700 return &xrcd->ibxrcd;
703 ib_dealloc_pd(xrcd->pd);
705 mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
711 static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
713 ib_destroy_cq(to_mxrcd(xrcd)->cq);
714 ib_dealloc_pd(to_mxrcd(xrcd)->pd);
715 mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
721 static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
723 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
724 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
725 struct mlx4_ib_gid_entry *ge;
727 ge = kzalloc(sizeof *ge, GFP_KERNEL);
732 if (mlx4_ib_add_mc(mdev, mqp, gid)) {
733 ge->port = mqp->port;
737 mutex_lock(&mqp->mutex);
738 list_add_tail(&ge->list, &mqp->gid_list);
739 mutex_unlock(&mqp->mutex);
744 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
748 struct net_device *ndev;
754 spin_lock(&mdev->iboe.lock);
755 ndev = mdev->iboe.netdevs[mqp->port - 1];
758 spin_unlock(&mdev->iboe.lock);
761 rdma_get_mcast_mac((struct in6_addr *)gid, mac);
763 dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac);
772 struct mlx4_ib_steering {
773 struct list_head list;
778 static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
781 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
782 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
784 struct mlx4_ib_steering *ib_steering = NULL;
786 if (mdev->dev->caps.steering_mode ==
787 MLX4_STEERING_MODE_DEVICE_MANAGED) {
788 ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL);
793 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port,
795 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
796 MLX4_PROT_IB_IPV6, ®_id);
800 err = add_gid_entry(ibqp, gid);
805 memcpy(ib_steering->gid.raw, gid->raw, 16);
806 ib_steering->reg_id = reg_id;
807 mutex_lock(&mqp->mutex);
808 list_add(&ib_steering->list, &mqp->steering_rules);
809 mutex_unlock(&mqp->mutex);
814 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
815 MLX4_PROT_IB_IPV6, reg_id);
822 static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
824 struct mlx4_ib_gid_entry *ge;
825 struct mlx4_ib_gid_entry *tmp;
826 struct mlx4_ib_gid_entry *ret = NULL;
828 list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
829 if (!memcmp(raw, ge->gid.raw, 16)) {
838 static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
841 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
842 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
844 struct net_device *ndev;
845 struct mlx4_ib_gid_entry *ge;
848 if (mdev->dev->caps.steering_mode ==
849 MLX4_STEERING_MODE_DEVICE_MANAGED) {
850 struct mlx4_ib_steering *ib_steering;
852 mutex_lock(&mqp->mutex);
853 list_for_each_entry(ib_steering, &mqp->steering_rules, list) {
854 if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) {
855 list_del(&ib_steering->list);
859 mutex_unlock(&mqp->mutex);
860 if (&ib_steering->list == &mqp->steering_rules) {
861 pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n");
864 reg_id = ib_steering->reg_id;
868 err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
869 MLX4_PROT_IB_IPV6, reg_id);
873 mutex_lock(&mqp->mutex);
874 ge = find_gid_entry(mqp, gid->raw);
876 spin_lock(&mdev->iboe.lock);
877 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
880 spin_unlock(&mdev->iboe.lock);
881 rdma_get_mcast_mac((struct in6_addr *)gid, mac);
884 dev_mc_del(mdev->iboe.netdevs[ge->port - 1], mac);
891 pr_warn("could not find mgid entry\n");
893 mutex_unlock(&mqp->mutex);
898 static int init_node_data(struct mlx4_ib_dev *dev)
900 struct ib_smp *in_mad = NULL;
901 struct ib_smp *out_mad = NULL;
902 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
905 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
906 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
907 if (!in_mad || !out_mad)
910 init_query_mad(in_mad);
911 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
912 if (mlx4_is_master(dev->dev))
913 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
915 err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
919 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
921 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
923 err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
927 dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
928 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
936 static ssize_t show_hca(struct device *device, struct device_attribute *attr,
939 struct mlx4_ib_dev *dev =
940 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
941 return sprintf(buf, "MT%d\n", dev->dev->pdev->device);
944 static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
947 struct mlx4_ib_dev *dev =
948 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
949 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
950 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
951 (int) dev->dev->caps.fw_ver & 0xffff);
954 static ssize_t show_rev(struct device *device, struct device_attribute *attr,
957 struct mlx4_ib_dev *dev =
958 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
959 return sprintf(buf, "%x\n", dev->dev->rev_id);
962 static ssize_t show_board(struct device *device, struct device_attribute *attr,
965 struct mlx4_ib_dev *dev =
966 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
967 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
971 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
972 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
973 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
974 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
976 static struct device_attribute *mlx4_class_attributes[] = {
983 static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev)
985 memcpy(eui, dev->dev_addr, 3);
986 memcpy(eui + 5, dev->dev_addr + 3, 3);
987 if (vlan_id < 0x1000) {
988 eui[3] = vlan_id >> 8;
989 eui[4] = vlan_id & 0xff;
997 static void update_gids_task(struct work_struct *work)
999 struct update_gid_work *gw = container_of(work, struct update_gid_work, work);
1000 struct mlx4_cmd_mailbox *mailbox;
1003 struct mlx4_dev *dev = gw->dev->dev;
1005 mailbox = mlx4_alloc_cmd_mailbox(dev);
1006 if (IS_ERR(mailbox)) {
1007 pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox));
1011 gids = mailbox->buf;
1012 memcpy(gids, gw->gids, sizeof gw->gids);
1014 err = mlx4_cmd(dev, mailbox->dma, MLX4_SET_PORT_GID_TABLE << 8 | gw->port,
1015 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
1018 pr_warn("set port command failed\n");
1020 memcpy(gw->dev->iboe.gid_table[gw->port - 1], gw->gids, sizeof gw->gids);
1021 mlx4_ib_dispatch_event(gw->dev, gw->port, IB_EVENT_GID_CHANGE);
1024 mlx4_free_cmd_mailbox(dev, mailbox);
1028 static int update_ipv6_gids(struct mlx4_ib_dev *dev, int port, int clear)
1030 struct net_device *ndev = dev->iboe.netdevs[port - 1];
1031 struct update_gid_work *work;
1032 struct net_device *tmp;
1039 int need_update = 0;
1042 work = kzalloc(sizeof *work, GFP_ATOMIC);
1046 hits = kzalloc(128, GFP_ATOMIC);
1053 for_each_netdev_rcu(&init_net, tmp) {
1054 if (ndev && (tmp == ndev || rdma_vlan_dev_real_dev(tmp) == ndev)) {
1055 gid.global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
1056 vid = rdma_vlan_dev_vlan_id(tmp);
1057 mlx4_addrconf_ifid_eui48(&gid.raw[8], vid, ndev);
1060 for (i = 0; i < 128; ++i) {
1062 !memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid))
1064 if (!memcmp(&dev->iboe.gid_table[port - 1][i], &gid, sizeof gid)) {
1073 (memcmp(&dev->iboe.gid_table[port - 1][0],
1074 &gid, sizeof gid) ||
1075 !memcmp(&dev->iboe.gid_table[port - 1][0],
1076 &zgid, sizeof gid))) {
1077 dev->iboe.gid_table[port - 1][0] = gid;
1080 } else if (free >= 0) {
1081 dev->iboe.gid_table[port - 1][free] = gid;
1090 for (i = 0; i < 128; ++i)
1092 if (memcmp(&dev->iboe.gid_table[port - 1][i], &zgid, sizeof zgid))
1094 dev->iboe.gid_table[port - 1][i] = zgid;
1098 memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof work->gids);
1099 INIT_WORK(&work->work, update_gids_task);
1102 queue_work(wq, &work->work);
1114 static void handle_en_event(struct mlx4_ib_dev *dev, int port, unsigned long event)
1118 case NETDEV_CHANGEADDR:
1119 update_ipv6_gids(dev, port, 0);
1123 update_ipv6_gids(dev, port, 1);
1124 dev->iboe.netdevs[port - 1] = NULL;
1128 static void netdev_added(struct mlx4_ib_dev *dev, int port)
1130 update_ipv6_gids(dev, port, 0);
1133 static void netdev_removed(struct mlx4_ib_dev *dev, int port)
1135 update_ipv6_gids(dev, port, 1);
1138 static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event,
1141 struct net_device *dev = ptr;
1142 struct mlx4_ib_dev *ibdev;
1143 struct net_device *oldnd;
1144 struct mlx4_ib_iboe *iboe;
1147 if (!net_eq(dev_net(dev), &init_net))
1150 ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
1151 iboe = &ibdev->iboe;
1153 spin_lock(&iboe->lock);
1154 mlx4_foreach_ib_transport_port(port, ibdev->dev) {
1155 oldnd = iboe->netdevs[port - 1];
1156 iboe->netdevs[port - 1] =
1157 mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
1158 if (oldnd != iboe->netdevs[port - 1]) {
1159 if (iboe->netdevs[port - 1])
1160 netdev_added(ibdev, port);
1162 netdev_removed(ibdev, port);
1166 if (dev == iboe->netdevs[0] ||
1167 (iboe->netdevs[0] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[0]))
1168 handle_en_event(ibdev, 1, event);
1169 else if (dev == iboe->netdevs[1]
1170 || (iboe->netdevs[1] && rdma_vlan_dev_real_dev(dev) == iboe->netdevs[1]))
1171 handle_en_event(ibdev, 2, event);
1173 spin_unlock(&iboe->lock);
1178 static void init_pkeys(struct mlx4_ib_dev *ibdev)
1184 if (mlx4_is_master(ibdev->dev)) {
1185 for (slave = 0; slave <= ibdev->dev->num_vfs; ++slave) {
1186 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
1188 i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
1190 ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] =
1191 /* master has the identity virt2phys pkey mapping */
1192 (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i :
1193 ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1;
1194 mlx4_sync_pkey_table(ibdev->dev, slave, port, i,
1195 ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]);
1199 /* initialize pkey cache */
1200 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
1202 i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
1204 ibdev->pkeys.phys_pkey_cache[port-1][i] =
1210 static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
1213 int eq_per_port = 0;
1218 /* Legacy mode or comp_pool is not large enough */
1219 if (dev->caps.comp_pool == 0 ||
1220 dev->caps.num_ports > dev->caps.comp_pool)
1223 eq_per_port = rounddown_pow_of_two(dev->caps.comp_pool/
1224 dev->caps.num_ports);
1228 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
1229 added_eqs += eq_per_port;
1231 total_eqs = dev->caps.num_comp_vectors + added_eqs;
1233 ibdev->eq_table = kzalloc(total_eqs * sizeof(int), GFP_KERNEL);
1234 if (!ibdev->eq_table)
1237 ibdev->eq_added = added_eqs;
1240 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) {
1241 for (j = 0; j < eq_per_port; j++) {
1242 sprintf(name, "mlx4-ib-%d-%d@%s",
1243 i, j, dev->pdev->bus->name);
1244 /* Set IRQ for specific name (per ring) */
1245 if (mlx4_assign_eq(dev, name, NULL,
1246 &ibdev->eq_table[eq])) {
1247 /* Use legacy (same as mlx4_en driver) */
1248 pr_warn("Can't allocate EQ %d; reverting to legacy\n", eq);
1249 ibdev->eq_table[eq] =
1250 (eq % dev->caps.num_comp_vectors);
1256 /* Fill the reset of the vector with legacy EQ */
1257 for (i = 0, eq = added_eqs; i < dev->caps.num_comp_vectors; i++)
1258 ibdev->eq_table[eq++] = i;
1260 /* Advertise the new number of EQs to clients */
1261 ibdev->ib_dev.num_comp_vectors = total_eqs;
1264 static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
1268 /* no additional eqs were added */
1269 if (!ibdev->eq_table)
1272 /* Reset the advertised EQ number */
1273 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
1275 /* Free only the added eqs */
1276 for (i = 0; i < ibdev->eq_added; i++) {
1277 /* Don't free legacy eqs if used */
1278 if (ibdev->eq_table[i] <= dev->caps.num_comp_vectors)
1280 mlx4_release_eq(dev, ibdev->eq_table[i]);
1283 kfree(ibdev->eq_table);
1286 static void *mlx4_ib_add(struct mlx4_dev *dev)
1288 struct mlx4_ib_dev *ibdev;
1292 struct mlx4_ib_iboe *iboe;
1294 pr_info_once("%s", mlx4_ib_version);
1296 mlx4_foreach_non_ib_transport_port(i, dev)
1299 if (mlx4_is_mfunc(dev) && num_ports) {
1300 dev_err(&dev->pdev->dev, "RoCE is not supported over SRIOV as yet\n");
1305 mlx4_foreach_ib_transport_port(i, dev)
1308 /* No point in registering a device with no ports... */
1312 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
1314 dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
1318 iboe = &ibdev->iboe;
1320 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
1323 if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
1326 ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT,
1328 if (!ibdev->uar_map)
1330 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
1334 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
1335 ibdev->ib_dev.owner = THIS_MODULE;
1336 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
1337 ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey;
1338 ibdev->num_ports = num_ports;
1339 ibdev->ib_dev.phys_port_cnt = ibdev->num_ports;
1340 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
1341 ibdev->ib_dev.dma_device = &dev->pdev->dev;
1343 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
1344 ibdev->ib_dev.uverbs_cmd_mask =
1345 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1346 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1347 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1348 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1349 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1350 (1ull << IB_USER_VERBS_CMD_REG_MR) |
1351 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1352 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1353 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
1354 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
1355 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1356 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1357 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
1358 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
1359 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1360 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
1361 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
1362 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
1363 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
1364 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
1365 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) |
1366 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) |
1367 (1ull << IB_USER_VERBS_CMD_OPEN_QP);
1369 ibdev->ib_dev.query_device = mlx4_ib_query_device;
1370 ibdev->ib_dev.query_port = mlx4_ib_query_port;
1371 ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer;
1372 ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
1373 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
1374 ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
1375 ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
1376 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
1377 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
1378 ibdev->ib_dev.mmap = mlx4_ib_mmap;
1379 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
1380 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
1381 ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
1382 ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
1383 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
1384 ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
1385 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
1386 ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
1387 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
1388 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
1389 ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
1390 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
1391 ibdev->ib_dev.query_qp = mlx4_ib_query_qp;
1392 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
1393 ibdev->ib_dev.post_send = mlx4_ib_post_send;
1394 ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
1395 ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
1396 ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq;
1397 ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq;
1398 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
1399 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
1400 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
1401 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
1402 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
1403 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
1404 ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr;
1405 ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list;
1406 ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list;
1407 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
1408 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
1409 ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
1411 if (!mlx4_is_slave(ibdev->dev)) {
1412 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc;
1413 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr;
1414 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
1415 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
1418 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
1419 ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
1420 ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
1421 ibdev->ib_dev.uverbs_cmd_mask |=
1422 (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
1423 (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
1426 mlx4_ib_alloc_eqs(dev, ibdev);
1428 spin_lock_init(&iboe->lock);
1430 if (init_node_data(ibdev))
1433 for (i = 0; i < ibdev->num_ports; ++i) {
1434 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
1435 IB_LINK_LAYER_ETHERNET) {
1436 err = mlx4_counter_alloc(ibdev->dev, &ibdev->counters[i]);
1438 ibdev->counters[i] = -1;
1440 ibdev->counters[i] = -1;
1443 spin_lock_init(&ibdev->sm_lock);
1444 mutex_init(&ibdev->cap_mask_mutex);
1446 if (ib_register_device(&ibdev->ib_dev, NULL))
1449 if (mlx4_ib_mad_init(ibdev))
1452 if (mlx4_ib_init_sriov(ibdev))
1455 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE && !iboe->nb.notifier_call) {
1456 iboe->nb.notifier_call = mlx4_ib_netdev_event;
1457 err = register_netdevice_notifier(&iboe->nb);
1462 for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
1463 if (device_create_file(&ibdev->ib_dev.dev,
1464 mlx4_class_attributes[j]))
1468 ibdev->ib_active = true;
1470 if (mlx4_is_mfunc(ibdev->dev))
1476 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
1477 pr_warn("failure unregistering notifier\n");
1478 flush_workqueue(wq);
1481 mlx4_ib_close_sriov(ibdev);
1484 mlx4_ib_mad_cleanup(ibdev);
1487 ib_unregister_device(&ibdev->ib_dev);
1491 if (ibdev->counters[i - 1] != -1)
1492 mlx4_counter_free(ibdev->dev, ibdev->counters[i - 1]);
1495 iounmap(ibdev->uar_map);
1498 mlx4_uar_free(dev, &ibdev->priv_uar);
1501 mlx4_pd_free(dev, ibdev->priv_pdn);
1504 ib_dealloc_device(&ibdev->ib_dev);
1509 static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
1511 struct mlx4_ib_dev *ibdev = ibdev_ptr;
1514 mlx4_ib_close_sriov(ibdev);
1515 mlx4_ib_mad_cleanup(ibdev);
1516 ib_unregister_device(&ibdev->ib_dev);
1517 if (ibdev->iboe.nb.notifier_call) {
1518 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
1519 pr_warn("failure unregistering notifier\n");
1520 ibdev->iboe.nb.notifier_call = NULL;
1522 iounmap(ibdev->uar_map);
1523 for (p = 0; p < ibdev->num_ports; ++p)
1524 if (ibdev->counters[p] != -1)
1525 mlx4_counter_free(ibdev->dev, ibdev->counters[p]);
1526 mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
1527 mlx4_CLOSE_PORT(dev, p);
1529 mlx4_ib_free_eqs(dev, ibdev);
1531 mlx4_uar_free(dev, &ibdev->priv_uar);
1532 mlx4_pd_free(dev, ibdev->priv_pdn);
1533 ib_dealloc_device(&ibdev->ib_dev);
1536 static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
1538 struct mlx4_ib_demux_work **dm = NULL;
1539 struct mlx4_dev *dev = ibdev->dev;
1541 unsigned long flags;
1543 if (!mlx4_is_master(dev))
1546 dm = kcalloc(dev->caps.num_ports, sizeof *dm, GFP_ATOMIC);
1548 pr_err("failed to allocate memory for tunneling qp update\n");
1552 for (i = 0; i < dev->caps.num_ports; i++) {
1553 dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
1555 pr_err("failed to allocate memory for tunneling qp update work struct\n");
1556 for (i = 0; i < dev->caps.num_ports; i++) {
1563 /* initialize or tear down tunnel QPs for the slave */
1564 for (i = 0; i < dev->caps.num_ports; i++) {
1565 INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work);
1566 dm[i]->port = i + 1;
1567 dm[i]->slave = slave;
1568 dm[i]->do_init = do_init;
1570 spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags);
1571 if (!ibdev->sriov.is_going_down)
1572 queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work);
1573 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
1581 static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
1582 enum mlx4_dev_event event, unsigned long param)
1584 struct ib_event ibev;
1585 struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
1586 struct mlx4_eqe *eqe = NULL;
1587 struct ib_event_work *ew;
1590 if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE)
1591 eqe = (struct mlx4_eqe *)param;
1596 case MLX4_DEV_EVENT_PORT_UP:
1597 if (p > ibdev->num_ports)
1599 if (mlx4_is_master(dev) &&
1600 rdma_port_get_link_layer(&ibdev->ib_dev, p) ==
1601 IB_LINK_LAYER_INFINIBAND) {
1602 mlx4_ib_invalidate_all_guid_record(ibdev, p);
1604 ibev.event = IB_EVENT_PORT_ACTIVE;
1607 case MLX4_DEV_EVENT_PORT_DOWN:
1608 if (p > ibdev->num_ports)
1610 ibev.event = IB_EVENT_PORT_ERR;
1613 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
1614 ibdev->ib_active = false;
1615 ibev.event = IB_EVENT_DEVICE_FATAL;
1618 case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
1619 ew = kmalloc(sizeof *ew, GFP_ATOMIC);
1621 pr_err("failed to allocate memory for events work\n");
1625 INIT_WORK(&ew->work, handle_port_mgmt_change_event);
1626 memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
1628 /* need to queue only for port owner, which uses GEN_EQE */
1629 if (mlx4_is_master(dev))
1630 queue_work(wq, &ew->work);
1632 handle_port_mgmt_change_event(&ew->work);
1635 case MLX4_DEV_EVENT_SLAVE_INIT:
1636 /* here, p is the slave id */
1637 do_slave_init(ibdev, p, 1);
1640 case MLX4_DEV_EVENT_SLAVE_SHUTDOWN:
1641 /* here, p is the slave id */
1642 do_slave_init(ibdev, p, 0);
1649 ibev.device = ibdev_ptr;
1650 ibev.element.port_num = (u8) p;
1652 ib_dispatch_event(&ibev);
1655 static struct mlx4_interface mlx4_ib_interface = {
1657 .remove = mlx4_ib_remove,
1658 .event = mlx4_ib_event,
1659 .protocol = MLX4_PROT_IB_IPV6
1662 static int __init mlx4_ib_init(void)
1666 wq = create_singlethread_workqueue("mlx4_ib");
1670 err = mlx4_ib_mcg_init();
1674 err = mlx4_register_interface(&mlx4_ib_interface);
1681 mlx4_ib_mcg_destroy();
1684 destroy_workqueue(wq);
1688 static void __exit mlx4_ib_cleanup(void)
1690 mlx4_unregister_interface(&mlx4_ib_interface);
1691 mlx4_ib_mcg_destroy();
1692 destroy_workqueue(wq);
1695 module_init(mlx4_ib_init);
1696 module_exit(mlx4_ib_cleanup);