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>
53 #include <linux/slab.h>
57 #include <asm/byteorder.h>
59 #include <rdma/ib_smi.h>
60 #include <rdma/ib_umem.h>
61 #include <rdma/ib_user_verbs.h>
63 #include "c2_provider.h"
66 static int c2_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
69 struct c2_dev *c2dev = to_c2dev(ibdev);
71 pr_debug("%s:%u\n", __func__, __LINE__);
73 if (uhw->inlen || uhw->outlen)
76 *props = c2dev->props;
80 static int c2_query_port(struct ib_device *ibdev,
81 u8 port, struct ib_port_attr *props)
83 pr_debug("%s:%u\n", __func__, __LINE__);
85 props->max_mtu = IB_MTU_4096;
90 props->state = IB_PORT_ACTIVE;
91 props->phys_state = 0;
92 props->port_cap_flags =
95 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
96 props->gid_tbl_len = 1;
97 props->pkey_tbl_len = 1;
98 props->qkey_viol_cntr = 0;
99 props->active_width = 1;
100 props->active_speed = IB_SPEED_SDR;
105 static int c2_query_pkey(struct ib_device *ibdev,
106 u8 port, u16 index, u16 * pkey)
108 pr_debug("%s:%u\n", __func__, __LINE__);
113 static int c2_query_gid(struct ib_device *ibdev, u8 port,
114 int index, union ib_gid *gid)
116 struct c2_dev *c2dev = to_c2dev(ibdev);
118 pr_debug("%s:%u\n", __func__, __LINE__);
119 memset(&(gid->raw[0]), 0, sizeof(gid->raw));
120 memcpy(&(gid->raw[0]), c2dev->pseudo_netdev->dev_addr, 6);
125 /* Allocate the user context data structure. This keeps track
126 * of all objects associated with a particular user-mode client.
128 static struct ib_ucontext *c2_alloc_ucontext(struct ib_device *ibdev,
129 struct ib_udata *udata)
131 struct c2_ucontext *context;
133 pr_debug("%s:%u\n", __func__, __LINE__);
134 context = kmalloc(sizeof(*context), GFP_KERNEL);
136 return ERR_PTR(-ENOMEM);
138 return &context->ibucontext;
141 static int c2_dealloc_ucontext(struct ib_ucontext *context)
143 pr_debug("%s:%u\n", __func__, __LINE__);
148 static int c2_mmap_uar(struct ib_ucontext *context, struct vm_area_struct *vma)
150 pr_debug("%s:%u\n", __func__, __LINE__);
154 static struct ib_pd *c2_alloc_pd(struct ib_device *ibdev,
155 struct ib_ucontext *context,
156 struct ib_udata *udata)
161 pr_debug("%s:%u\n", __func__, __LINE__);
163 pd = kmalloc(sizeof(*pd), GFP_KERNEL);
165 return ERR_PTR(-ENOMEM);
167 err = c2_pd_alloc(to_c2dev(ibdev), !context, pd);
174 if (ib_copy_to_udata(udata, &pd->pd_id, sizeof(__u32))) {
175 c2_pd_free(to_c2dev(ibdev), pd);
177 return ERR_PTR(-EFAULT);
184 static int c2_dealloc_pd(struct ib_pd *pd)
186 pr_debug("%s:%u\n", __func__, __LINE__);
187 c2_pd_free(to_c2dev(pd->device), to_c2pd(pd));
193 static struct ib_ah *c2_ah_create(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
195 pr_debug("%s:%u\n", __func__, __LINE__);
196 return ERR_PTR(-ENOSYS);
199 static int c2_ah_destroy(struct ib_ah *ah)
201 pr_debug("%s:%u\n", __func__, __LINE__);
205 static void c2_add_ref(struct ib_qp *ibqp)
210 atomic_inc(&qp->refcount);
213 static void c2_rem_ref(struct ib_qp *ibqp)
218 if (atomic_dec_and_test(&qp->refcount))
222 struct ib_qp *c2_get_qp(struct ib_device *device, int qpn)
224 struct c2_dev* c2dev = to_c2dev(device);
227 qp = c2_find_qpn(c2dev, qpn);
228 pr_debug("%s Returning QP=%p for QPN=%d, device=%p, refcount=%d\n",
229 __func__, qp, qpn, device,
230 (qp?atomic_read(&qp->refcount):0));
232 return (qp?&qp->ibqp:NULL);
235 static struct ib_qp *c2_create_qp(struct ib_pd *pd,
236 struct ib_qp_init_attr *init_attr,
237 struct ib_udata *udata)
242 pr_debug("%s:%u\n", __func__, __LINE__);
244 if (init_attr->create_flags)
245 return ERR_PTR(-EINVAL);
247 switch (init_attr->qp_type) {
249 qp = kzalloc(sizeof(*qp), GFP_KERNEL);
251 pr_debug("%s: Unable to allocate QP\n", __func__);
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", __func__,
270 return ERR_PTR(-EINVAL);
281 static int c2_destroy_qp(struct ib_qp *ib_qp)
283 struct c2_qp *qp = to_c2qp(ib_qp);
285 pr_debug("%s:%u qp=%p,qp->state=%d\n",
286 __func__, __LINE__, ib_qp, qp->state);
287 c2_free_qp(to_c2dev(ib_qp->device), qp);
292 static struct ib_cq *c2_create_cq(struct ib_device *ibdev,
293 const struct ib_cq_init_attr *attr,
294 struct ib_ucontext *context,
295 struct ib_udata *udata)
297 int entries = attr->cqe;
302 return ERR_PTR(-EINVAL);
304 cq = kmalloc(sizeof(*cq), GFP_KERNEL);
306 pr_debug("%s: Unable to allocate CQ\n", __func__);
307 return ERR_PTR(-ENOMEM);
310 err = c2_init_cq(to_c2dev(ibdev), entries, NULL, cq);
312 pr_debug("%s: error initializing CQ\n", __func__);
320 static int c2_destroy_cq(struct ib_cq *ib_cq)
322 struct c2_cq *cq = to_c2cq(ib_cq);
324 pr_debug("%s:%u\n", __func__, __LINE__);
326 c2_free_cq(to_c2dev(ib_cq->device), cq);
332 static inline u32 c2_convert_access(int acc)
334 return (acc & IB_ACCESS_REMOTE_WRITE ? C2_ACF_REMOTE_WRITE : 0) |
335 (acc & IB_ACCESS_REMOTE_READ ? C2_ACF_REMOTE_READ : 0) |
336 (acc & IB_ACCESS_LOCAL_WRITE ? C2_ACF_LOCAL_WRITE : 0) |
337 C2_ACF_LOCAL_READ | C2_ACF_WINDOW_BIND;
340 static struct ib_mr *c2_reg_phys_mr(struct ib_pd *ib_pd,
341 struct ib_phys_buf *buffer_list,
342 int num_phys_buf, int acc, u64 * iova_start)
347 int err, i, j, k, page_shift, pbl_depth;
352 page_shift = PAGE_SHIFT;
354 * If there is only 1 buffer we assume this could
355 * be a map of all phy mem...use a 32k page_shift.
357 if (num_phys_buf == 1)
360 for (i = 0; i < num_phys_buf; i++) {
362 if (offset_in_page(buffer_list[i].addr)) {
363 pr_debug("Unaligned Memory Buffer: 0x%x\n",
364 (unsigned int) buffer_list[i].addr);
365 return ERR_PTR(-EINVAL);
368 if (!buffer_list[i].size) {
369 pr_debug("Invalid Buffer Size\n");
370 return ERR_PTR(-EINVAL);
373 total_len += buffer_list[i].size;
374 pbl_depth += ALIGN(buffer_list[i].size,
375 BIT(page_shift)) >> page_shift;
378 page_list = vmalloc(sizeof(u64) * pbl_depth);
380 pr_debug("couldn't vmalloc page_list of size %zd\n",
381 (sizeof(u64) * pbl_depth));
382 return ERR_PTR(-ENOMEM);
385 for (i = 0, j = 0; i < num_phys_buf; i++) {
389 naddrs = ALIGN(buffer_list[i].size,
390 BIT(page_shift)) >> page_shift;
391 for (k = 0; k < naddrs; k++)
392 page_list[j++] = (buffer_list[i].addr +
396 mr = kmalloc(sizeof(*mr), GFP_KERNEL);
399 return ERR_PTR(-ENOMEM);
402 mr->pd = to_c2pd(ib_pd);
404 pr_debug("%s - page shift %d, pbl_depth %d, total_len %u, "
405 "*iova_start %llx, first pa %llx, last pa %llx\n",
406 __func__, page_shift, pbl_depth, total_len,
407 (unsigned long long) *iova_start,
408 (unsigned long long) page_list[0],
409 (unsigned long long) page_list[pbl_depth-1]);
410 err = c2_nsmr_register_phys_kern(to_c2dev(ib_pd->device), page_list,
411 BIT(page_shift), pbl_depth,
412 total_len, 0, iova_start,
413 c2_convert_access(acc), mr);
423 static struct ib_mr *c2_get_dma_mr(struct ib_pd *pd, int acc)
425 struct ib_phys_buf bl;
428 pr_debug("%s:%u\n", __func__, __LINE__);
431 bl.size = 0xffffffff;
433 return c2_reg_phys_mr(pd, &bl, 1, acc, &kva);
436 static struct ib_mr *c2_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
437 u64 virt, int acc, struct ib_udata *udata)
444 struct scatterlist *sg;
445 struct c2_pd *c2pd = to_c2pd(pd);
448 pr_debug("%s:%u\n", __func__, __LINE__);
450 c2mr = kmalloc(sizeof(*c2mr), GFP_KERNEL);
452 return ERR_PTR(-ENOMEM);
455 c2mr->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0);
456 if (IS_ERR(c2mr->umem)) {
457 err = PTR_ERR(c2mr->umem);
462 shift = ffs(c2mr->umem->page_size) - 1;
463 n = c2mr->umem->nmap;
465 pages = kmalloc_array(n, sizeof(u64), GFP_KERNEL);
472 for_each_sg(c2mr->umem->sg_head.sgl, sg, c2mr->umem->nmap, entry) {
473 len = sg_dma_len(sg) >> shift;
474 for (k = 0; k < len; ++k) {
477 (c2mr->umem->page_size * k);
482 err = c2_nsmr_register_phys_kern(to_c2dev(pd->device),
484 c2mr->umem->page_size,
487 ib_umem_offset(c2mr->umem),
489 c2_convert_access(acc),
497 ib_umem_release(c2mr->umem);
502 static int c2_dereg_mr(struct ib_mr *ib_mr)
504 struct c2_mr *mr = to_c2mr(ib_mr);
507 pr_debug("%s:%u\n", __func__, __LINE__);
509 err = c2_stag_dealloc(to_c2dev(ib_mr->device), ib_mr->lkey);
511 pr_debug("c2_stag_dealloc failed: %d\n", err);
514 ib_umem_release(mr->umem);
521 static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
524 struct c2_dev *c2dev = container_of(dev, struct c2_dev, ibdev.dev);
525 pr_debug("%s:%u\n", __func__, __LINE__);
526 return sprintf(buf, "%x\n", c2dev->props.hw_ver);
529 static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr,
532 struct c2_dev *c2dev = container_of(dev, struct c2_dev, ibdev.dev);
533 pr_debug("%s:%u\n", __func__, __LINE__);
534 return sprintf(buf, "%x.%x.%x\n",
535 (int) (c2dev->props.fw_ver >> 32),
536 (int) (c2dev->props.fw_ver >> 16) & 0xffff,
537 (int) (c2dev->props.fw_ver & 0xffff));
540 static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
543 pr_debug("%s:%u\n", __func__, __LINE__);
544 return sprintf(buf, "AMSO1100\n");
547 static ssize_t show_board(struct device *dev, struct device_attribute *attr,
550 pr_debug("%s:%u\n", __func__, __LINE__);
551 return sprintf(buf, "%.*s\n", 32, "AMSO1100 Board ID");
554 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
555 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
556 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
557 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
559 static struct device_attribute *c2_dev_attributes[] = {
566 static int c2_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
567 int attr_mask, struct ib_udata *udata)
572 c2_qp_modify(to_c2dev(ibqp->device), to_c2qp(ibqp), attr,
578 static int c2_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
580 pr_debug("%s:%u\n", __func__, __LINE__);
584 static int c2_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
586 pr_debug("%s:%u\n", __func__, __LINE__);
590 static int c2_process_mad(struct ib_device *ibdev,
593 const struct ib_wc *in_wc,
594 const struct ib_grh *in_grh,
595 const struct ib_mad_hdr *in_mad,
597 struct ib_mad_hdr *out_mad,
598 size_t *out_mad_size,
599 u16 *out_mad_pkey_index)
601 pr_debug("%s:%u\n", __func__, __LINE__);
605 static int c2_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param)
607 pr_debug("%s:%u\n", __func__, __LINE__);
609 /* Request a connection */
610 return c2_llp_connect(cm_id, iw_param);
613 static int c2_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param)
615 pr_debug("%s:%u\n", __func__, __LINE__);
617 /* Accept the new connection */
618 return c2_llp_accept(cm_id, iw_param);
621 static int c2_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
623 pr_debug("%s:%u\n", __func__, __LINE__);
625 return c2_llp_reject(cm_id, pdata, pdata_len);
628 static int c2_service_create(struct iw_cm_id *cm_id, int backlog)
632 pr_debug("%s:%u\n", __func__, __LINE__);
633 err = c2_llp_service_create(cm_id, backlog);
634 pr_debug("%s:%u err=%d\n",
640 static int c2_service_destroy(struct iw_cm_id *cm_id)
642 pr_debug("%s:%u\n", __func__, __LINE__);
644 return c2_llp_service_destroy(cm_id);
647 static int c2_pseudo_up(struct net_device *netdev)
649 struct in_device *ind;
650 struct c2_dev *c2dev = netdev->ml_priv;
652 ind = in_dev_get(netdev);
656 pr_debug("adding...\n");
659 u8 *ip = (u8 *) & ifa->ifa_address;
661 pr_debug("%s: %d.%d.%d.%d\n",
662 ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]);
664 c2_add_addr(c2dev, ifa->ifa_address, ifa->ifa_mask);
672 static int c2_pseudo_down(struct net_device *netdev)
674 struct in_device *ind;
675 struct c2_dev *c2dev = netdev->ml_priv;
677 ind = in_dev_get(netdev);
681 pr_debug("deleting...\n");
684 u8 *ip = (u8 *) & ifa->ifa_address;
686 pr_debug("%s: %d.%d.%d.%d\n",
687 ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]);
689 c2_del_addr(c2dev, ifa->ifa_address, ifa->ifa_mask);
697 static int c2_pseudo_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
703 static int c2_pseudo_change_mtu(struct net_device *netdev, int new_mtu)
705 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
708 netdev->mtu = new_mtu;
710 /* TODO: Tell rnic about new rmda interface mtu */
714 static const struct net_device_ops c2_pseudo_netdev_ops = {
715 .ndo_open = c2_pseudo_up,
716 .ndo_stop = c2_pseudo_down,
717 .ndo_start_xmit = c2_pseudo_xmit_frame,
718 .ndo_change_mtu = c2_pseudo_change_mtu,
719 .ndo_validate_addr = eth_validate_addr,
722 static void setup(struct net_device *netdev)
724 netdev->netdev_ops = &c2_pseudo_netdev_ops;
726 netdev->watchdog_timeo = 0;
727 netdev->type = ARPHRD_ETHER;
729 netdev->hard_header_len = ETH_HLEN;
730 netdev->addr_len = ETH_ALEN;
731 netdev->tx_queue_len = 0;
732 netdev->flags |= IFF_NOARP;
735 static struct net_device *c2_pseudo_netdev_init(struct c2_dev *c2dev)
738 struct net_device *netdev;
740 /* change ethxxx to iwxxx */
742 strcat(name, &c2dev->netdev->name[3]);
743 netdev = alloc_netdev(0, name, NET_NAME_UNKNOWN, setup);
745 printk(KERN_ERR PFX "%s - etherdev alloc failed",
750 netdev->ml_priv = c2dev;
752 SET_NETDEV_DEV(netdev, &c2dev->pcidev->dev);
754 memcpy_fromio(netdev->dev_addr, c2dev->kva + C2_REGS_RDMA_ENADDR, 6);
756 /* Print out the MAC address */
757 pr_debug("%s: MAC %pM\n", netdev->name, netdev->dev_addr);
760 /* Disable network packets */
761 netif_stop_queue(netdev);
766 static int c2_port_immutable(struct ib_device *ibdev, u8 port_num,
767 struct ib_port_immutable *immutable)
769 struct ib_port_attr attr;
772 err = c2_query_port(ibdev, port_num, &attr);
776 immutable->pkey_tbl_len = attr.pkey_tbl_len;
777 immutable->gid_tbl_len = attr.gid_tbl_len;
778 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
783 int c2_register_device(struct c2_dev *dev)
788 /* Register pseudo network device */
789 dev->pseudo_netdev = c2_pseudo_netdev_init(dev);
790 if (!dev->pseudo_netdev)
793 ret = register_netdev(dev->pseudo_netdev);
795 goto out_free_netdev;
797 pr_debug("%s:%u\n", __func__, __LINE__);
798 strlcpy(dev->ibdev.name, "amso%d", IB_DEVICE_NAME_MAX);
799 dev->ibdev.owner = THIS_MODULE;
800 dev->ibdev.uverbs_cmd_mask =
801 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
802 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
803 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
804 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
805 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
806 (1ull << IB_USER_VERBS_CMD_REG_MR) |
807 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
808 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
809 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
810 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
811 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
812 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
813 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
814 (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
815 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
816 (1ull << IB_USER_VERBS_CMD_POST_SEND) |
817 (1ull << IB_USER_VERBS_CMD_POST_RECV);
819 dev->ibdev.node_type = RDMA_NODE_RNIC;
820 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
821 memcpy(&dev->ibdev.node_guid, dev->pseudo_netdev->dev_addr, 6);
822 dev->ibdev.phys_port_cnt = 1;
823 dev->ibdev.num_comp_vectors = 1;
824 dev->ibdev.dma_device = &dev->pcidev->dev;
825 dev->ibdev.query_device = c2_query_device;
826 dev->ibdev.query_port = c2_query_port;
827 dev->ibdev.query_pkey = c2_query_pkey;
828 dev->ibdev.query_gid = c2_query_gid;
829 dev->ibdev.alloc_ucontext = c2_alloc_ucontext;
830 dev->ibdev.dealloc_ucontext = c2_dealloc_ucontext;
831 dev->ibdev.mmap = c2_mmap_uar;
832 dev->ibdev.alloc_pd = c2_alloc_pd;
833 dev->ibdev.dealloc_pd = c2_dealloc_pd;
834 dev->ibdev.create_ah = c2_ah_create;
835 dev->ibdev.destroy_ah = c2_ah_destroy;
836 dev->ibdev.create_qp = c2_create_qp;
837 dev->ibdev.modify_qp = c2_modify_qp;
838 dev->ibdev.destroy_qp = c2_destroy_qp;
839 dev->ibdev.create_cq = c2_create_cq;
840 dev->ibdev.destroy_cq = c2_destroy_cq;
841 dev->ibdev.poll_cq = c2_poll_cq;
842 dev->ibdev.get_dma_mr = c2_get_dma_mr;
843 dev->ibdev.reg_phys_mr = c2_reg_phys_mr;
844 dev->ibdev.reg_user_mr = c2_reg_user_mr;
845 dev->ibdev.dereg_mr = c2_dereg_mr;
846 dev->ibdev.get_port_immutable = c2_port_immutable;
848 dev->ibdev.alloc_fmr = NULL;
849 dev->ibdev.unmap_fmr = NULL;
850 dev->ibdev.dealloc_fmr = NULL;
851 dev->ibdev.map_phys_fmr = NULL;
853 dev->ibdev.attach_mcast = c2_multicast_attach;
854 dev->ibdev.detach_mcast = c2_multicast_detach;
855 dev->ibdev.process_mad = c2_process_mad;
857 dev->ibdev.req_notify_cq = c2_arm_cq;
858 dev->ibdev.post_send = c2_post_send;
859 dev->ibdev.post_recv = c2_post_receive;
861 dev->ibdev.iwcm = kmalloc(sizeof(*dev->ibdev.iwcm), GFP_KERNEL);
862 if (dev->ibdev.iwcm == NULL) {
864 goto out_unregister_netdev;
866 dev->ibdev.iwcm->add_ref = c2_add_ref;
867 dev->ibdev.iwcm->rem_ref = c2_rem_ref;
868 dev->ibdev.iwcm->get_qp = c2_get_qp;
869 dev->ibdev.iwcm->connect = c2_connect;
870 dev->ibdev.iwcm->accept = c2_accept;
871 dev->ibdev.iwcm->reject = c2_reject;
872 dev->ibdev.iwcm->create_listen = c2_service_create;
873 dev->ibdev.iwcm->destroy_listen = c2_service_destroy;
875 ret = ib_register_device(&dev->ibdev, NULL);
879 for (i = 0; i < ARRAY_SIZE(c2_dev_attributes); ++i) {
880 ret = device_create_file(&dev->ibdev.dev,
881 c2_dev_attributes[i]);
883 goto out_unregister_ibdev;
887 out_unregister_ibdev:
888 ib_unregister_device(&dev->ibdev);
890 kfree(dev->ibdev.iwcm);
891 out_unregister_netdev:
892 unregister_netdev(dev->pseudo_netdev);
894 free_netdev(dev->pseudo_netdev);
896 pr_debug("%s:%u ret=%d\n", __func__, __LINE__, ret);
900 void c2_unregister_device(struct c2_dev *dev)
902 pr_debug("%s:%u\n", __func__, __LINE__);
903 unregister_netdev(dev->pseudo_netdev);
904 free_netdev(dev->pseudo_netdev);
905 ib_unregister_device(&dev->ibdev);