- 根目录:
- drivers
- infiniband
- hw
- amso1100
- c2_provider.c
/*
* Copyright (c) 2005 Ammasso, Inc. All rights reserved.
* Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/inetdevice.h>
#include <linux/delay.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/if_vlan.h>
#include <linux/crc32.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/if_arp.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/byteorder.h>
#include <rdma/ib_smi.h>
#include <rdma/ib_umem.h>
#include <rdma/ib_user_verbs.h>
#include "c2.h"
#include "c2_provider.h"
#include "c2_user.h"
static int c2_query_device(struct ib_device *ibdev,
struct ib_device_attr *props)
{
struct c2_dev *c2dev = to_c2dev(ibdev);
pr_debug("%s:%u\n", __func__, __LINE__);
*props = c2dev->props;
return 0;
}
static int c2_query_port(struct ib_device *ibdev,
u8 port, struct ib_port_attr *props)
{
pr_debug("%s:%u\n", __func__, __LINE__);
props->max_mtu = IB_MTU_4096;
props->lid = 0;
props->lmc = 0;
props->sm_lid = 0;
props->sm_sl = 0;
props->state = IB_PORT_ACTIVE;
props->phys_state = 0;
props->port_cap_flags =
IB_PORT_CM_SUP |
IB_PORT_REINIT_SUP |
IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
props->gid_tbl_len = 1;
props->pkey_tbl_len = 1;
props->qkey_viol_cntr = 0;
props->active_width = 1;
props->active_speed = IB_SPEED_SDR;
return 0;
}
static int c2_query_pkey(struct ib_device *ibdev,
u8 port, u16 index, u16 * pkey)
{
pr_debug("%s:%u\n", __func__, __LINE__);
*pkey = 0;
return 0;
}
static int c2_query_gid(struct ib_device *ibdev, u8 port,
int index, union ib_gid *gid)
{
struct c2_dev *c2dev = to_c2dev(ibdev);
pr_debug("%s:%u\n", __func__, __LINE__);
memset(&(gid->raw[0]), 0, sizeof(gid->raw));
memcpy(&(gid->raw[0]), c2dev->pseudo_netdev->dev_addr, 6);
return 0;
}
/* Allocate the user context data structure. This keeps track
* of all objects associated with a particular user-mode client.
*/
static struct ib_ucontext *c2_alloc_ucontext(struct ib_device *ibdev,
struct ib_udata *udata)
{
struct c2_ucontext *context;
pr_debug("%s:%u\n", __func__, __LINE__);
context = kmalloc(sizeof(*context), GFP_KERNEL);
if (!context)
return ERR_PTR(-ENOMEM);
return &context->ibucontext;
}
static int c2_dealloc_ucontext(struct ib_ucontext *context)
{
pr_debug("%s:%u\n", __func__, __LINE__);
kfree(context);
return 0;
}
static int c2_mmap_uar(struct ib_ucontext *context, struct vm_area_struct *vma)
{
pr_debug("%s:%u\n", __func__, __LINE__);
return -ENOSYS;
}
static struct ib_pd *c2_alloc_pd(struct ib_device *ibdev,
struct ib_ucontext *context,
struct ib_udata *udata)
{
struct c2_pd *pd;
int err;
pr_debug("%s:%u\n", __func__, __LINE__);
pd = kmalloc(sizeof(*pd), GFP_KERNEL);
if (!pd)
return ERR_PTR(-ENOMEM);
err = c2_pd_alloc(to_c2dev(ibdev), !context, pd);
if (err) {
kfree(pd);
return ERR_PTR(err);
}
if (context) {
if (ib_copy_to_udata(udata, &pd->pd_id, sizeof(__u32))) {
c2_pd_free(to_c2dev(ibdev), pd);
kfree(pd);
return ERR_PTR(-EFAULT);
}
}
return &pd->ibpd;
}
static int c2_dealloc_pd(struct ib_pd *pd)
{
pr_debug("%s:%u\n", __func__, __LINE__);
c2_pd_free(to_c2dev(pd->device), to_c2pd(pd));
kfree(pd);
return 0;
}
static struct ib_ah *c2_ah_create(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
{
pr_debug("%s:%u\n", __func__, __LINE__);
return ERR_PTR(-ENOSYS);
}
static int c2_ah_destroy(struct ib_ah *ah)
{
pr_debug("%s:%u\n", __func__, __LINE__);
return -ENOSYS;
}
static void c2_add_ref(struct ib_qp *ibqp)
{
struct c2_qp *qp;
BUG_ON(!ibqp);
qp = to_c2qp(ibqp);
atomic_inc(&qp->refcount);
}
static void c2_rem_ref(struct ib_qp *ibqp)
{
struct c2_qp *qp;
BUG_ON(!ibqp);
qp = to_c2qp(ibqp);
if (atomic_dec_and_test(&qp->refcount))
wake_up(&qp->wait);
}
struct ib_qp *c2_get_qp(struct ib_device *device, int qpn)
{
struct c2_dev* c2dev = to_c2dev(device);
struct c2_qp *qp;
qp = c2_find_qpn(c2dev, qpn);
pr_debug("%s Returning QP=%p for QPN=%d, device=%p, refcount=%d\n",
__func__, qp, qpn, device,
(qp?atomic_read(&qp->refcount):0));
return (qp?&qp->ibqp:NULL);
}
static struct ib_qp *c2_create_qp(struct ib_pd *pd,
struct ib_qp_init_attr *init_attr,
struct ib_udata *udata)
{
struct c2_qp *qp;
int err;
pr_debug("%s:%u\n", __func__, __LINE__);
if (init_attr->create_flags)
return ERR_PTR(-EINVAL);
switch (init_attr->qp_type) {
case IB_QPT_RC:
qp = kzalloc(sizeof(*qp), GFP_KERNEL);
if (!qp) {
pr_debug("%s: Unable to allocate QP\n", __func__);
return ERR_PTR(-ENOMEM);
}
spin_lock_init(&qp->lock);
if (pd->uobject) {
/* userspace specific */
}
err = c2_alloc_qp(to_c2dev(pd->device),
to_c2pd(pd), init_attr, qp);
if (err && pd->uobject) {
/* userspace specific */
}
break;
default:
pr_debug("%s: Invalid QP type: %d\n", __func__,
init_attr->qp_type);
return ERR_PTR(-EINVAL);
}
if (err) {
kfree(qp);
return ERR_PTR(err);
}
return &qp->ibqp;
}
static int c2_destroy_qp(struct ib_qp *ib_qp)
{
struct c2_qp *qp = to_c2qp(ib_qp);
pr_debug("%s:%u qp=%p,qp->state=%d\n",
__func__, __LINE__, ib_qp, qp->state);
c2_free_qp(to_c2dev(ib_qp->device), qp);
kfree(qp);
return 0;
}
static struct ib_cq *c2_create_cq(struct ib_device *ibdev, int entries, int vector,
struct ib_ucontext *context,
struct ib_udata *udata)
{
struct c2_cq *cq;
int err;
cq = kmalloc(sizeof(*cq), GFP_KERNEL);
if (!cq) {
pr_debug("%s: Unable to allocate CQ\n", __func__);
return ERR_PTR(-ENOMEM);
}
err = c2_init_cq(to_c2dev(ibdev), entries, NULL, cq);
if (err) {
pr_debug("%s: error initializing CQ\n", __func__);
kfree(cq);
return ERR_PTR(err);
}
return &cq->ibcq;
}
static int c2_destroy_cq(struct ib_cq *ib_cq)
{
struct c2_cq *cq = to_c2cq(ib_cq);
pr_debug("%s:%u\n", __func__, __LINE__);
c2_free_cq(to_c2dev(ib_cq->device), cq);
kfree(cq);
return 0;
}
static inline u32 c2_convert_access(int acc)
{
return (acc & IB_ACCESS_REMOTE_WRITE ? C2_ACF_REMOTE_WRITE : 0) |
(acc & IB_ACCESS_REMOTE_READ ? C2_ACF_REMOTE_READ : 0) |
(acc & IB_ACCESS_LOCAL_WRITE ? C2_ACF_LOCAL_WRITE : 0) |
C2_ACF_LOCAL_READ | C2_ACF_WINDOW_BIND;
}
static struct ib_mr *c2_reg_phys_mr(struct ib_pd *ib_pd,
struct ib_phys_buf *buffer_list,
int num_phys_buf, int acc, u64 * iova_start)
{
struct c2_mr *mr;
u64 *page_list;
u32 total_len;
int err, i, j, k, page_shift, pbl_depth;
pbl_depth = 0;
total_len = 0;
page_shift = PAGE_SHIFT;
/*
* If there is only 1 buffer we assume this could
* be a map of all phy mem...use a 32k page_shift.
*/
if (num_phys_buf == 1)
page_shift += 3;
for (i = 0; i < num_phys_buf; i++) {
if (buffer_list[i].addr & ~PAGE_MASK) {
pr_debug("Unaligned Memory Buffer: 0x%x\n",
(unsigned int) buffer_list[i].addr);
return ERR_PTR(-EINVAL);
}
if (!buffer_list[i].size) {
pr_debug("Invalid Buffer Size\n");
return ERR_PTR(-EINVAL);
}
total_len += buffer_list[i].size;
pbl_depth += ALIGN(buffer_list[i].size,
(1 << page_shift)) >> page_shift;
}
page_list = vmalloc(sizeof(u64) * pbl_depth);
if (!page_list) {
pr_debug("couldn't vmalloc page_list of size %zd\n",
(sizeof(u64) * pbl_depth));
return ERR_PTR(-ENOMEM);
}
for (i = 0, j = 0; i < num_phys_buf; i++) {
int naddrs;
naddrs = ALIGN(buffer_list[i].size,
(1 << page_shift)) >> page_shift;
for (k = 0; k < naddrs; k++)
page_list[j++] = (buffer_list[i].addr +
(k << page_shift));
}
mr = kmalloc(sizeof(*mr), GFP_KERNEL);
if (!mr) {
vfree(page_list);
return ERR_PTR(-ENOMEM);
}
mr->pd = to_c2pd(ib_pd);
mr->umem = NULL;
pr_debug("%s - page shift %d, pbl_depth %d, total_len %u, "
"*iova_start %llx, first pa %llx, last pa %llx\n",
__func__, page_shift, pbl_depth, total_len,
(unsigned long long) *iova_start,
(unsigned long long) page_list[0],
(unsigned long long) page_list[pbl_depth-1]);
err = c2_nsmr_register_phys_kern(to_c2dev(ib_pd->device), page_list,
(1 << page_shift), pbl_depth,
total_len, 0, iova_start,
c2_convert_access(acc), mr);
vfree(page_list);
if (err) {
kfree(mr);
return ERR_PTR(err);
}
return &mr->ibmr;
}
static struct ib_mr *c2_get_dma_mr(struct ib_pd *pd, int acc)
{
struct ib_phys_buf bl;
u64 kva = 0;
pr_debug("%s:%u\n", __func__, __LINE__);
/* AMSO1100 limit */
bl.size = 0xffffffff;
bl.addr = 0;
return c2_reg_phys_mr(pd, &bl, 1, acc, &kva);
}
static struct ib_mr *c2_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt, int acc, struct ib_udata *udata)
{
u64 *pages;
u64 kva = 0;
int shift, n, len;
int i, k, entry;
int err = 0;
struct scatterlist *sg;
struct c2_pd *c2pd = to_c2pd(pd);
struct c2_mr *c2mr;
pr_debug("%s:%u\n", __func__, __LINE__);
c2mr = kmalloc(sizeof(*c2mr), GFP_KERNEL);
if (!c2mr)
return ERR_PTR(-ENOMEM);
c2mr->pd = c2pd;
c2mr->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0);
if (IS_ERR(c2mr->umem)) {
err = PTR_ERR(c2mr->umem);
kfree(c2mr);
return ERR_PTR(err);
}
shift = ffs(c2mr->umem->page_size) - 1;
n = c2mr->umem->nmap;
pages = kmalloc(n * sizeof(u64), GFP_KERNEL);
if (!pages) {
err = -ENOMEM;
goto err;
}
i = 0;
for_each_sg(c2mr->umem->sg_head.sgl, sg, c2mr->umem->nmap, entry) {
len = sg_dma_len(sg) >> shift;
for (k = 0; k < len; ++k) {
pages[i++] =
sg_dma_address(sg) +
(c2mr->umem->page_size * k);
}
}
kva = virt;
err = c2_nsmr_register_phys_kern(to_c2dev(pd->device),
pages,
c2mr->umem->page_size,
i,
length,
ib_umem_offset(c2mr->umem),
&kva,
c2_convert_access(acc),
c2mr);
kfree(pages);
if (err)
goto err;
return &c2mr->ibmr;
err:
ib_umem_release(c2mr->umem);
kfree(c2mr);
return ERR_PTR(err);
}
static int c2_dereg_mr(struct ib_mr *ib_mr)
{
struct c2_mr *mr = to_c2mr(ib_mr);
int err;
pr_debug("%s:%u\n", __func__, __LINE__);
err = c2_stag_dealloc(to_c2dev(ib_mr->device), ib_mr->lkey);
if (err)
pr_debug("c2_stag_dealloc failed: %d\n", err);
else {
if (mr->umem)
ib_umem_release(mr->umem);
kfree(mr);
}
return err;
}
static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct c2_dev *c2dev = container_of(dev, struct c2_dev, ibdev.dev);
pr_debug("%s:%u\n", __func__, __LINE__);
return sprintf(buf, "%x\n", c2dev->props.hw_ver);
}
static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct c2_dev *c2dev = container_of(dev, struct c2_dev, ibdev.dev);
pr_debug("%s:%u\n", __func__, __LINE__);
return sprintf(buf, "%x.%x.%x\n",
(int) (c2dev->props.fw_ver >> 32),
(int) (c2dev->props.fw_ver >> 16) & 0xffff,
(int) (c2dev->props.fw_ver & 0xffff));
}
static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
char *buf)
{
pr_debug("%s:%u\n", __func__, __LINE__);
return sprintf(buf, "AMSO1100\n");
}
static ssize_t show_board(struct device *dev, struct device_attribute *attr,
char *buf)
{
pr_debug("%s:%u\n", __func__, __LINE__);
return sprintf(buf, "%.*s\n", 32, "AMSO1100 Board ID");
}
static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
static struct device_attribute *c2_dev_attributes[] = {
&dev_attr_hw_rev,
&dev_attr_fw_ver,
&dev_attr_hca_type,
&dev_attr_board_id
};
static int c2_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
int attr_mask, struct ib_udata *udata)
{
int err;
err =
c2_qp_modify(to_c2dev(ibqp->device), to_c2qp(ibqp), attr,
attr_mask);
return err;
}
static int c2_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
{
pr_debug("%s:%u\n", __func__, __LINE__);
return -ENOSYS;
}
static int c2_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
{
pr_debug("%s:%u\n", __func__, __LINE__);
return -ENOSYS;
}
static int c2_process_mad(struct ib_device *ibdev,
int mad_flags,
u8 port_num,
struct ib_wc *in_wc,
struct ib_grh *in_grh,
struct ib_mad *in_mad, struct ib_mad *out_mad)
{
pr_debug("%s:%u\n", __func__, __LINE__);
return -ENOSYS;
}
static int c2_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param)
{
pr_debug("%s:%u\n", __func__, __LINE__);
/* Request a connection */
return c2_llp_connect(cm_id, iw_param);
}
static int c2_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param)
{
pr_debug("%s:%u\n", __func__, __LINE__);
/* Accept the new connection */
return c2_llp_accept(cm_id, iw_param);
}
static int c2_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
{
int err;
pr_debug("%s:%u\n", __func__, __LINE__);
err = c2_llp_reject(cm_id, pdata, pdata_len);
return err;
}
static int c2_service_create(struct iw_cm_id *cm_id, int backlog)
{
int err;
pr_debug("%s:%u\n", __func__, __LINE__);
err = c2_llp_service_create(cm_id, backlog);
pr_debug("%s:%u err=%d\n",
__func__, __LINE__,
err);
return err;
}
static int c2_service_destroy(struct iw_cm_id *cm_id)
{
int err;
pr_debug("%s:%u\n", __func__, __LINE__);
err = c2_llp_service_destroy(cm_id);
return err;
}
static int c2_pseudo_up(struct net_device *netdev)
{
struct in_device *ind;
struct c2_dev *c2dev = netdev->ml_priv;
ind = in_dev_get(netdev);
if (!ind)
return 0;
pr_debug("adding...\n");
for_ifa(ind) {
#ifdef DEBUG
u8 *ip = (u8 *) & ifa->ifa_address;
pr_debug("%s: %d.%d.%d.%d\n",
ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]);
#endif
c2_add_addr(c2dev, ifa->ifa_address, ifa->ifa_mask);
}
endfor_ifa(ind);
in_dev_put(ind);
return 0;
}
static int c2_pseudo_down(struct net_device *netdev)
{
struct in_device *ind;
struct c2_dev *c2dev = netdev->ml_priv;
ind = in_dev_get(netdev);
if (!ind)
return 0;
pr_debug("deleting...\n");
for_ifa(ind) {
#ifdef DEBUG
u8 *ip = (u8 *) & ifa->ifa_address;
pr_debug("%s: %d.%d.%d.%d\n",
ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]);
#endif
c2_del_addr(c2dev, ifa->ifa_address, ifa->ifa_mask);
}
endfor_ifa(ind);
in_dev_put(ind);
return 0;
}
static int c2_pseudo_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
{
kfree_skb(skb);
return NETDEV_TX_OK;
}
static int c2_pseudo_change_mtu(struct net_device *netdev, int new_mtu)
{
if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
return -EINVAL;
netdev->mtu = new_mtu;
/* TODO: Tell rnic about new rmda interface mtu */
return 0;
}
static const struct net_device_ops c2_pseudo_netdev_ops = {
.ndo_open = c2_pseudo_up,
.ndo_stop = c2_pseudo_down,
.ndo_start_xmit = c2_pseudo_xmit_frame,
.ndo_change_mtu = c2_pseudo_change_mtu,
.ndo_validate_addr = eth_validate_addr,
};
static void setup(struct net_device *netdev)
{
netdev->netdev_ops = &c2_pseudo_netdev_ops;
netdev->watchdog_timeo = 0;
netdev->type = ARPHRD_ETHER;
netdev->mtu = 1500;
netdev->hard_header_len = ETH_HLEN;
netdev->addr_len = ETH_ALEN;
netdev->tx_queue_len = 0;
netdev->flags |= IFF_NOARP;
}
static struct net_device *c2_pseudo_netdev_init(struct c2_dev *c2dev)
{
char name[IFNAMSIZ];
struct net_device *netdev;
/* change ethxxx to iwxxx */
strcpy(name, "iw");
strcat(name, &c2dev->netdev->name[3]);
netdev = alloc_netdev(0, name, NET_NAME_UNKNOWN, setup);
if (!netdev) {
printk(KERN_ERR PFX "%s - etherdev alloc failed",
__func__);
return NULL;
}
netdev->ml_priv = c2dev;
SET_NETDEV_DEV(netdev, &c2dev->pcidev->dev);
memcpy_fromio(netdev->dev_addr, c2dev->kva + C2_REGS_RDMA_ENADDR, 6);
/* Print out the MAC address */
pr_debug("%s: MAC %pM\n", netdev->name, netdev->dev_addr);
#if 0
/* Disable network packets */
netif_stop_queue(netdev);
#endif
return netdev;
}
int c2_register_device(struct c2_dev *dev)
{
int ret = -ENOMEM;
int i;
/* Register pseudo network device */
dev->pseudo_netdev = c2_pseudo_netdev_init(dev);
if (!dev->pseudo_netdev)
goto out;
ret = register_netdev(dev->pseudo_netdev);
if (ret)
goto out_free_netdev;
pr_debug("%s:%u\n", __func__, __LINE__);
strlcpy(dev->ibdev.name, "amso%d", IB_DEVICE_NAME_MAX);
dev->ibdev.owner = THIS_MODULE;
dev->ibdev.uverbs_cmd_mask =
(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
(1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
(1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
(1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
(1ull << IB_USER_VERBS_CMD_REG_MR) |
(1ull << IB_USER_VERBS_CMD_DEREG_MR) |
(1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
(1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
(1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
(1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
(1ull << IB_USER_VERBS_CMD_CREATE_QP) |
(1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
(1ull << IB_USER_VERBS_CMD_POLL_CQ) |
(1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
(1ull << IB_USER_VERBS_CMD_POST_SEND) |
(1ull << IB_USER_VERBS_CMD_POST_RECV);
dev->ibdev.node_type = RDMA_NODE_RNIC;
memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
memcpy(&dev->ibdev.node_guid, dev->pseudo_netdev->dev_addr, 6);
dev->ibdev.phys_port_cnt = 1;
dev->ibdev.num_comp_vectors = 1;
dev->ibdev.dma_device = &dev->pcidev->dev;
dev->ibdev.query_device = c2_query_device;
dev->ibdev.query_port = c2_query_port;
dev->ibdev.query_pkey = c2_query_pkey;
dev->ibdev.query_gid = c2_query_gid;
dev->ibdev.alloc_ucontext = c2_alloc_ucontext;
dev->ibdev.dealloc_ucontext = c2_dealloc_ucontext;
dev->ibdev.mmap = c2_mmap_uar;
dev->ibdev.alloc_pd = c2_alloc_pd;
dev->ibdev.dealloc_pd = c2_dealloc_pd;
dev->ibdev.create_ah = c2_ah_create;
dev->ibdev.destroy_ah = c2_ah_destroy;
dev->ibdev.create_qp = c2_create_qp;
dev->ibdev.modify_qp = c2_modify_qp;
dev->ibdev.destroy_qp = c2_destroy_qp;
dev->ibdev.create_cq = c2_create_cq;
dev->ibdev.destroy_cq = c2_destroy_cq;
dev->ibdev.poll_cq = c2_poll_cq;
dev->ibdev.get_dma_mr = c2_get_dma_mr;
dev->ibdev.reg_phys_mr = c2_reg_phys_mr;
dev->ibdev.reg_user_mr = c2_reg_user_mr;
dev->ibdev.dereg_mr = c2_dereg_mr;
dev->ibdev.alloc_fmr = NULL;
dev->ibdev.unmap_fmr = NULL;
dev->ibdev.dealloc_fmr = NULL;
dev->ibdev.map_phys_fmr = NULL;
dev->ibdev.attach_mcast = c2_multicast_attach;
dev->ibdev.detach_mcast = c2_multicast_detach;
dev->ibdev.process_mad = c2_process_mad;
dev->ibdev.req_notify_cq = c2_arm_cq;
dev->ibdev.post_send = c2_post_send;
dev->ibdev.post_recv = c2_post_receive;
dev->ibdev.iwcm = kmalloc(sizeof(*dev->ibdev.iwcm), GFP_KERNEL);
if (dev->ibdev.iwcm == NULL) {
ret = -ENOMEM;
goto out_unregister_netdev;
}
dev->ibdev.iwcm->add_ref = c2_add_ref;
dev->ibdev.iwcm->rem_ref = c2_rem_ref;
dev->ibdev.iwcm->get_qp = c2_get_qp;
dev->ibdev.iwcm->connect = c2_connect;
dev->ibdev.iwcm->accept = c2_accept;
dev->ibdev.iwcm->reject = c2_reject;
dev->ibdev.iwcm->create_listen = c2_service_create;
dev->ibdev.iwcm->destroy_listen = c2_service_destroy;
ret = ib_register_device(&dev->ibdev, NULL);
if (ret)
goto out_free_iwcm;
for (i = 0; i < ARRAY_SIZE(c2_dev_attributes); ++i) {
ret = device_create_file(&dev->ibdev.dev,
c2_dev_attributes[i]);
if (ret)
goto out_unregister_ibdev;
}
goto out;
out_unregister_ibdev:
ib_unregister_device(&dev->ibdev);
out_free_iwcm:
kfree(dev->ibdev.iwcm);
out_unregister_netdev:
unregister_netdev(dev->pseudo_netdev);
out_free_netdev:
free_netdev(dev->pseudo_netdev);
out:
pr_debug("%s:%u ret=%d\n", __func__, __LINE__, ret);
return ret;
}
void c2_unregister_device(struct c2_dev *dev)
{
pr_debug("%s:%u\n", __func__, __LINE__);
unregister_netdev(dev->pseudo_netdev);
free_netdev(dev->pseudo_netdev);
ib_unregister_device(&dev->ibdev);
}