2 * Copyright (c) 2005 Ammasso, Inc. All rights reserved.
3 * Copyright (c) 2005 Open Grid Computing, Inc. 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
35 #include <linux/module.h>
36 #include <linux/moduleparam.h>
37 #include <linux/pci.h>
38 #include <linux/netdevice.h>
39 #include <linux/etherdevice.h>
40 #include <linux/inetdevice.h>
41 #include <linux/delay.h>
42 #include <linux/ethtool.h>
43 #include <linux/mii.h>
44 #include <linux/if_vlan.h>
45 #include <linux/crc32.h>
48 #include <linux/tcp.h>
49 #include <linux/init.h>
50 #include <linux/dma-mapping.h>
51 #include <linux/if_arp.h>
52 #include <linux/vmalloc.h>
56 #include <asm/byteorder.h>
58 #include <rdma/ib_smi.h>
59 #include <rdma/ib_user_verbs.h>
61 #include "c2_provider.h"
64 static int c2_query_device(struct ib_device *ibdev,
65 struct ib_device_attr *props)
67 struct c2_dev *c2dev = to_c2dev(ibdev);
69 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
71 *props = c2dev->props;
75 static int c2_query_port(struct ib_device *ibdev,
76 u8 port, struct ib_port_attr *props)
78 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
80 props->max_mtu = IB_MTU_4096;
85 props->state = IB_PORT_ACTIVE;
86 props->phys_state = 0;
87 props->port_cap_flags =
90 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
91 props->gid_tbl_len = 1;
92 props->pkey_tbl_len = 1;
93 props->qkey_viol_cntr = 0;
94 props->active_width = 1;
95 props->active_speed = 1;
100 static int c2_modify_port(struct ib_device *ibdev,
101 u8 port, int port_modify_mask,
102 struct ib_port_modify *props)
104 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
108 static int c2_query_pkey(struct ib_device *ibdev,
109 u8 port, u16 index, u16 * pkey)
111 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
116 static int c2_query_gid(struct ib_device *ibdev, u8 port,
117 int index, union ib_gid *gid)
119 struct c2_dev *c2dev = to_c2dev(ibdev);
121 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
122 memset(&(gid->raw[0]), 0, sizeof(gid->raw));
123 memcpy(&(gid->raw[0]), c2dev->pseudo_netdev->dev_addr, 6);
128 /* Allocate the user context data structure. This keeps track
129 * of all objects associated with a particular user-mode client.
131 static struct ib_ucontext *c2_alloc_ucontext(struct ib_device *ibdev,
132 struct ib_udata *udata)
134 struct c2_ucontext *context;
136 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
137 context = kmalloc(sizeof(*context), GFP_KERNEL);
139 return ERR_PTR(-ENOMEM);
141 return &context->ibucontext;
144 static int c2_dealloc_ucontext(struct ib_ucontext *context)
146 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
151 static int c2_mmap_uar(struct ib_ucontext *context, struct vm_area_struct *vma)
153 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
157 static struct ib_pd *c2_alloc_pd(struct ib_device *ibdev,
158 struct ib_ucontext *context,
159 struct ib_udata *udata)
164 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
166 pd = kmalloc(sizeof(*pd), GFP_KERNEL);
168 return ERR_PTR(-ENOMEM);
170 err = c2_pd_alloc(to_c2dev(ibdev), !context, pd);
177 if (ib_copy_to_udata(udata, &pd->pd_id, sizeof(__u32))) {
178 c2_pd_free(to_c2dev(ibdev), pd);
180 return ERR_PTR(-EFAULT);
187 static int c2_dealloc_pd(struct ib_pd *pd)
189 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
190 c2_pd_free(to_c2dev(pd->device), to_c2pd(pd));
196 static struct ib_ah *c2_ah_create(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
198 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
199 return ERR_PTR(-ENOSYS);
202 static int c2_ah_destroy(struct ib_ah *ah)
204 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
208 static void c2_add_ref(struct ib_qp *ibqp)
213 atomic_inc(&qp->refcount);
216 static void c2_rem_ref(struct ib_qp *ibqp)
221 if (atomic_dec_and_test(&qp->refcount))
225 struct ib_qp *c2_get_qp(struct ib_device *device, int qpn)
227 struct c2_dev* c2dev = to_c2dev(device);
230 qp = c2_find_qpn(c2dev, qpn);
231 pr_debug("%s Returning QP=%p for QPN=%d, device=%p, refcount=%d\n",
232 __FUNCTION__, qp, qpn, device,
233 (qp?atomic_read(&qp->refcount):0));
235 return (qp?&qp->ibqp:NULL);
238 static struct ib_qp *c2_create_qp(struct ib_pd *pd,
239 struct ib_qp_init_attr *init_attr,
240 struct ib_udata *udata)
245 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
247 switch (init_attr->qp_type) {
249 qp = kzalloc(sizeof(*qp), GFP_KERNEL);
251 pr_debug("%s: Unable to allocate QP\n", __FUNCTION__);
252 return ERR_PTR(-ENOMEM);
254 spin_lock_init(&qp->lock);
256 /* userspace specific */
259 err = c2_alloc_qp(to_c2dev(pd->device),
260 to_c2pd(pd), init_attr, qp);
262 if (err && pd->uobject) {
263 /* userspace specific */
268 pr_debug("%s: Invalid QP type: %d\n", __FUNCTION__,
270 return ERR_PTR(-EINVAL);
282 static int c2_destroy_qp(struct ib_qp *ib_qp)
284 struct c2_qp *qp = to_c2qp(ib_qp);
286 pr_debug("%s:%u qp=%p,qp->state=%d\n",
287 __FUNCTION__, __LINE__,ib_qp,qp->state);
288 c2_free_qp(to_c2dev(ib_qp->device), qp);
293 static struct ib_cq *c2_create_cq(struct ib_device *ibdev, int entries,
294 struct ib_ucontext *context,
295 struct ib_udata *udata)
300 cq = kmalloc(sizeof(*cq), GFP_KERNEL);
302 pr_debug("%s: Unable to allocate CQ\n", __FUNCTION__);
303 return ERR_PTR(-ENOMEM);
306 err = c2_init_cq(to_c2dev(ibdev), entries, NULL, cq);
308 pr_debug("%s: error initializing CQ\n", __FUNCTION__);
316 static int c2_destroy_cq(struct ib_cq *ib_cq)
318 struct c2_cq *cq = to_c2cq(ib_cq);
320 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
322 c2_free_cq(to_c2dev(ib_cq->device), cq);
328 static inline u32 c2_convert_access(int acc)
330 return (acc & IB_ACCESS_REMOTE_WRITE ? C2_ACF_REMOTE_WRITE : 0) |
331 (acc & IB_ACCESS_REMOTE_READ ? C2_ACF_REMOTE_READ : 0) |
332 (acc & IB_ACCESS_LOCAL_WRITE ? C2_ACF_LOCAL_WRITE : 0) |
333 C2_ACF_LOCAL_READ | C2_ACF_WINDOW_BIND;
336 static struct ib_mr *c2_reg_phys_mr(struct ib_pd *ib_pd,
337 struct ib_phys_buf *buffer_list,
338 int num_phys_buf, int acc, u64 * iova_start)
343 int err, i, j, k, page_shift, pbl_depth;
348 page_shift = PAGE_SHIFT;
350 * If there is only 1 buffer we assume this could
351 * be a map of all phy mem...use a 32k page_shift.
353 if (num_phys_buf == 1)
356 for (i = 0; i < num_phys_buf; i++) {
358 if (buffer_list[i].addr & ~PAGE_MASK) {
359 pr_debug("Unaligned Memory Buffer: 0x%x\n",
360 (unsigned int) buffer_list[i].addr);
361 return ERR_PTR(-EINVAL);
364 if (!buffer_list[i].size) {
365 pr_debug("Invalid Buffer Size\n");
366 return ERR_PTR(-EINVAL);
369 total_len += buffer_list[i].size;
370 pbl_depth += ALIGN(buffer_list[i].size,
371 (1 << page_shift)) >> page_shift;
374 page_list = vmalloc(sizeof(u64) * pbl_depth);
376 pr_debug("couldn't vmalloc page_list of size %zd\n",
377 (sizeof(u64) * pbl_depth));
378 return ERR_PTR(-ENOMEM);
381 for (i = 0, j = 0; i < num_phys_buf; i++) {
385 naddrs = ALIGN(buffer_list[i].size,
386 (1 << page_shift)) >> page_shift;
387 for (k = 0; k < naddrs; k++)
388 page_list[j++] = (buffer_list[i].addr +
392 mr = kmalloc(sizeof(*mr), GFP_KERNEL);
395 return ERR_PTR(-ENOMEM);
398 mr->pd = to_c2pd(ib_pd);
399 pr_debug("%s - page shift %d, pbl_depth %d, total_len %u, "
400 "*iova_start %llx, first pa %llx, last pa %llx\n",
401 __FUNCTION__, page_shift, pbl_depth, total_len,
402 (unsigned long long) *iova_start,
403 (unsigned long long) page_list[0],
404 (unsigned long long) page_list[pbl_depth-1]);
405 err = c2_nsmr_register_phys_kern(to_c2dev(ib_pd->device), page_list,
406 (1 << page_shift), pbl_depth,
407 total_len, 0, iova_start,
408 c2_convert_access(acc), mr);
418 static struct ib_mr *c2_get_dma_mr(struct ib_pd *pd, int acc)
420 struct ib_phys_buf bl;
423 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
426 bl.size = 0xffffffff;
428 return c2_reg_phys_mr(pd, &bl, 1, acc, &kva);
431 static struct ib_mr *c2_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
432 int acc, struct ib_udata *udata)
439 struct ib_umem_chunk *chunk;
440 struct c2_pd *c2pd = to_c2pd(pd);
443 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
444 shift = ffs(region->page_size) - 1;
446 c2mr = kmalloc(sizeof(*c2mr), GFP_KERNEL);
448 return ERR_PTR(-ENOMEM);
452 list_for_each_entry(chunk, ®ion->chunk_list, list)
455 pages = kmalloc(n * sizeof(u64), GFP_KERNEL);
462 list_for_each_entry(chunk, ®ion->chunk_list, list) {
463 for (j = 0; j < chunk->nmap; ++j) {
464 len = sg_dma_len(&chunk->page_list[j]) >> shift;
465 for (k = 0; k < len; ++k) {
467 sg_dma_address(&chunk->page_list[j]) +
468 (region->page_size * k);
473 kva = (u64)region->virt_base;
474 err = c2_nsmr_register_phys_kern(to_c2dev(pd->device),
481 c2_convert_access(acc),
495 static int c2_dereg_mr(struct ib_mr *ib_mr)
497 struct c2_mr *mr = to_c2mr(ib_mr);
500 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
502 err = c2_stag_dealloc(to_c2dev(ib_mr->device), ib_mr->lkey);
504 pr_debug("c2_stag_dealloc failed: %d\n", err);
511 static ssize_t show_rev(struct class_device *cdev, char *buf)
513 struct c2_dev *dev = container_of(cdev, struct c2_dev, ibdev.class_dev);
514 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
515 return sprintf(buf, "%x\n", dev->props.hw_ver);
518 static ssize_t show_fw_ver(struct class_device *cdev, char *buf)
520 struct c2_dev *dev = container_of(cdev, struct c2_dev, ibdev.class_dev);
521 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
522 return sprintf(buf, "%x.%x.%x\n",
523 (int) (dev->props.fw_ver >> 32),
524 (int) (dev->props.fw_ver >> 16) & 0xffff,
525 (int) (dev->props.fw_ver & 0xffff));
528 static ssize_t show_hca(struct class_device *cdev, char *buf)
530 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
531 return sprintf(buf, "AMSO1100\n");
534 static ssize_t show_board(struct class_device *cdev, char *buf)
536 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
537 return sprintf(buf, "%.*s\n", 32, "AMSO1100 Board ID");
540 static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
541 static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
542 static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
543 static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
545 static struct class_device_attribute *c2_class_attributes[] = {
546 &class_device_attr_hw_rev,
547 &class_device_attr_fw_ver,
548 &class_device_attr_hca_type,
549 &class_device_attr_board_id
552 static int c2_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
553 int attr_mask, struct ib_udata *udata)
558 c2_qp_modify(to_c2dev(ibqp->device), to_c2qp(ibqp), attr,
564 static int c2_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
566 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
570 static int c2_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
572 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
576 static int c2_process_mad(struct ib_device *ibdev,
580 struct ib_grh *in_grh,
581 struct ib_mad *in_mad, struct ib_mad *out_mad)
583 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
587 static int c2_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param)
589 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
591 /* Request a connection */
592 return c2_llp_connect(cm_id, iw_param);
595 static int c2_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param)
597 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
599 /* Accept the new connection */
600 return c2_llp_accept(cm_id, iw_param);
603 static int c2_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
607 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
609 err = c2_llp_reject(cm_id, pdata, pdata_len);
613 static int c2_service_create(struct iw_cm_id *cm_id, int backlog)
617 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
618 err = c2_llp_service_create(cm_id, backlog);
619 pr_debug("%s:%u err=%d\n",
620 __FUNCTION__, __LINE__,
625 static int c2_service_destroy(struct iw_cm_id *cm_id)
628 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
630 err = c2_llp_service_destroy(cm_id);
635 static int c2_pseudo_up(struct net_device *netdev)
637 struct in_device *ind;
638 struct c2_dev *c2dev = netdev->priv;
640 ind = in_dev_get(netdev);
644 pr_debug("adding...\n");
647 u8 *ip = (u8 *) & ifa->ifa_address;
649 pr_debug("%s: %d.%d.%d.%d\n",
650 ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]);
652 c2_add_addr(c2dev, ifa->ifa_address, ifa->ifa_mask);
660 static int c2_pseudo_down(struct net_device *netdev)
662 struct in_device *ind;
663 struct c2_dev *c2dev = netdev->priv;
665 ind = in_dev_get(netdev);
669 pr_debug("deleting...\n");
672 u8 *ip = (u8 *) & ifa->ifa_address;
674 pr_debug("%s: %d.%d.%d.%d\n",
675 ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]);
677 c2_del_addr(c2dev, ifa->ifa_address, ifa->ifa_mask);
685 static int c2_pseudo_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
691 static int c2_pseudo_change_mtu(struct net_device *netdev, int new_mtu)
695 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
698 netdev->mtu = new_mtu;
700 /* TODO: Tell rnic about new rmda interface mtu */
704 static void setup(struct net_device *netdev)
706 SET_MODULE_OWNER(netdev);
707 netdev->open = c2_pseudo_up;
708 netdev->stop = c2_pseudo_down;
709 netdev->hard_start_xmit = c2_pseudo_xmit_frame;
710 netdev->get_stats = NULL;
711 netdev->tx_timeout = NULL;
712 netdev->set_mac_address = NULL;
713 netdev->change_mtu = c2_pseudo_change_mtu;
714 netdev->watchdog_timeo = 0;
715 netdev->type = ARPHRD_ETHER;
717 netdev->hard_header_len = ETH_HLEN;
718 netdev->addr_len = ETH_ALEN;
719 netdev->tx_queue_len = 0;
720 netdev->flags |= IFF_NOARP;
724 static struct net_device *c2_pseudo_netdev_init(struct c2_dev *c2dev)
727 struct net_device *netdev;
729 /* change ethxxx to iwxxx */
731 strcat(name, &c2dev->netdev->name[3]);
732 netdev = alloc_netdev(sizeof(*netdev), name, setup);
734 printk(KERN_ERR PFX "%s - etherdev alloc failed",
739 netdev->priv = c2dev;
741 SET_NETDEV_DEV(netdev, &c2dev->pcidev->dev);
743 memcpy_fromio(netdev->dev_addr, c2dev->kva + C2_REGS_RDMA_ENADDR, 6);
745 /* Print out the MAC address */
746 pr_debug("%s: MAC %02X:%02X:%02X:%02X:%02X:%02X\n",
748 netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2],
749 netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5]);
752 /* Disable network packets */
753 netif_stop_queue(netdev);
758 int c2_register_device(struct c2_dev *dev)
763 /* Register pseudo network device */
764 dev->pseudo_netdev = c2_pseudo_netdev_init(dev);
765 if (!dev->pseudo_netdev)
768 ret = register_netdev(dev->pseudo_netdev);
772 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
773 strlcpy(dev->ibdev.name, "amso%d", IB_DEVICE_NAME_MAX);
774 dev->ibdev.owner = THIS_MODULE;
775 dev->ibdev.uverbs_cmd_mask =
776 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
777 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
778 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
779 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
780 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
781 (1ull << IB_USER_VERBS_CMD_REG_MR) |
782 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
783 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
784 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
785 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
786 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
787 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
788 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
789 (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
790 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
791 (1ull << IB_USER_VERBS_CMD_POST_SEND) |
792 (1ull << IB_USER_VERBS_CMD_POST_RECV);
794 dev->ibdev.node_type = RDMA_NODE_RNIC;
795 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
796 memcpy(&dev->ibdev.node_guid, dev->pseudo_netdev->dev_addr, 6);
797 dev->ibdev.phys_port_cnt = 1;
798 dev->ibdev.dma_device = &dev->pcidev->dev;
799 dev->ibdev.class_dev.dev = &dev->pcidev->dev;
800 dev->ibdev.query_device = c2_query_device;
801 dev->ibdev.query_port = c2_query_port;
802 dev->ibdev.modify_port = c2_modify_port;
803 dev->ibdev.query_pkey = c2_query_pkey;
804 dev->ibdev.query_gid = c2_query_gid;
805 dev->ibdev.alloc_ucontext = c2_alloc_ucontext;
806 dev->ibdev.dealloc_ucontext = c2_dealloc_ucontext;
807 dev->ibdev.mmap = c2_mmap_uar;
808 dev->ibdev.alloc_pd = c2_alloc_pd;
809 dev->ibdev.dealloc_pd = c2_dealloc_pd;
810 dev->ibdev.create_ah = c2_ah_create;
811 dev->ibdev.destroy_ah = c2_ah_destroy;
812 dev->ibdev.create_qp = c2_create_qp;
813 dev->ibdev.modify_qp = c2_modify_qp;
814 dev->ibdev.destroy_qp = c2_destroy_qp;
815 dev->ibdev.create_cq = c2_create_cq;
816 dev->ibdev.destroy_cq = c2_destroy_cq;
817 dev->ibdev.poll_cq = c2_poll_cq;
818 dev->ibdev.get_dma_mr = c2_get_dma_mr;
819 dev->ibdev.reg_phys_mr = c2_reg_phys_mr;
820 dev->ibdev.reg_user_mr = c2_reg_user_mr;
821 dev->ibdev.dereg_mr = c2_dereg_mr;
823 dev->ibdev.alloc_fmr = NULL;
824 dev->ibdev.unmap_fmr = NULL;
825 dev->ibdev.dealloc_fmr = NULL;
826 dev->ibdev.map_phys_fmr = NULL;
828 dev->ibdev.attach_mcast = c2_multicast_attach;
829 dev->ibdev.detach_mcast = c2_multicast_detach;
830 dev->ibdev.process_mad = c2_process_mad;
832 dev->ibdev.req_notify_cq = c2_arm_cq;
833 dev->ibdev.post_send = c2_post_send;
834 dev->ibdev.post_recv = c2_post_receive;
836 dev->ibdev.iwcm = kmalloc(sizeof(*dev->ibdev.iwcm), GFP_KERNEL);
837 dev->ibdev.iwcm->add_ref = c2_add_ref;
838 dev->ibdev.iwcm->rem_ref = c2_rem_ref;
839 dev->ibdev.iwcm->get_qp = c2_get_qp;
840 dev->ibdev.iwcm->connect = c2_connect;
841 dev->ibdev.iwcm->accept = c2_accept;
842 dev->ibdev.iwcm->reject = c2_reject;
843 dev->ibdev.iwcm->create_listen = c2_service_create;
844 dev->ibdev.iwcm->destroy_listen = c2_service_destroy;
846 ret = ib_register_device(&dev->ibdev);
850 for (i = 0; i < ARRAY_SIZE(c2_class_attributes); ++i) {
851 ret = class_device_create_file(&dev->ibdev.class_dev,
852 c2_class_attributes[i]);
859 ib_unregister_device(&dev->ibdev);
861 unregister_netdev(dev->pseudo_netdev);
863 free_netdev(dev->pseudo_netdev);
865 pr_debug("%s:%u ret=%d\n", __FUNCTION__, __LINE__, ret);
869 void c2_unregister_device(struct c2_dev *dev)
871 pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
872 unregister_netdev(dev->pseudo_netdev);
873 free_netdev(dev->pseudo_netdev);
874 ib_unregister_device(&dev->ibdev);