[deliverable/linux.git] / drivers / infiniband / hw / cxgb4 / provider.c

/*
 * Copyright (c) 2009-2010 Chelsio, 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/device.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <linux/rtnetlink.h>
#include <linux/inetdevice.h>
#include <linux/io.h>

#include <asm/irq.h>
#include <asm/byteorder.h>

#include <rdma/iw_cm.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_smi.h>
#include <rdma/ib_umem.h>
#include <rdma/ib_user_verbs.h>

#include "iw_cxgb4.h"

static int fastreg_support = 1;
module_param(fastreg_support, int, 0644);
MODULE_PARM_DESC(fastreg_support, "Advertise fastreg support (default=1)");

static struct ib_ah *c4iw_ah_create(struct ib_pd *pd,
				    struct ib_ah_attr *ah_attr)
{
	return ERR_PTR(-ENOSYS);
}

static int c4iw_ah_destroy(struct ib_ah *ah)
{
	return -ENOSYS;
}

static int c4iw_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
{
	return -ENOSYS;
}

static int c4iw_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
{
	return -ENOSYS;
}

static int c4iw_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)
{
	return -ENOSYS;
}

static int c4iw_dealloc_ucontext(struct ib_ucontext *context)
{
	struct c4iw_dev *rhp = to_c4iw_dev(context->device);
	struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
	struct c4iw_mm_entry *mm, *tmp;

	PDBG("%s context %p\n", __func__, context);
	list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
		kfree(mm);
	c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
	kfree(ucontext);
	return 0;
}

static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev,
					       struct ib_udata *udata)
{
	struct c4iw_ucontext *context;
	struct c4iw_dev *rhp = to_c4iw_dev(ibdev);
	static int warned;
	struct c4iw_alloc_ucontext_resp uresp;
	int ret = 0;
	struct c4iw_mm_entry *mm = NULL;

	PDBG("%s ibdev %p\n", __func__, ibdev);
	context = kzalloc(sizeof(*context), GFP_KERNEL);
	if (!context) {
		ret = -ENOMEM;
		goto err;
	}

	c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx);
	INIT_LIST_HEAD(&context->mmaps);
	spin_lock_init(&context->mmap_lock);

	if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) {
		if (!warned++)
			pr_err(MOD "Warning - downlevel libcxgb4 (non-fatal), device status page disabled.");
		rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED;
	} else {
		mm = kmalloc(sizeof(*mm), GFP_KERNEL);
		if (!mm) {
			ret = -ENOMEM;
			goto err_free;
		}

		uresp.status_page_size = PAGE_SIZE;

		spin_lock(&context->mmap_lock);
		uresp.status_page_key = context->key;
		context->key += PAGE_SIZE;
		spin_unlock(&context->mmap_lock);

		ret = ib_copy_to_udata(udata, &uresp,
				       sizeof(uresp) - sizeof(uresp.reserved));
		if (ret)
			goto err_mm;

		mm->key = uresp.status_page_key;
		mm->addr = virt_to_phys(rhp->rdev.status_page);
		mm->len = PAGE_SIZE;
		insert_mmap(context, mm);
	}
	return &context->ibucontext;
err_mm:
	kfree(mm);
err_free:
	kfree(context);
err:
	return ERR_PTR(ret);
}

static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
{
	int len = vma->vm_end - vma->vm_start;
	u32 key = vma->vm_pgoff << PAGE_SHIFT;
	struct c4iw_rdev *rdev;
	int ret = 0;
	struct c4iw_mm_entry *mm;
	struct c4iw_ucontext *ucontext;
	u64 addr;

	PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
	     key, len);

	if (vma->vm_start & (PAGE_SIZE-1))
		return -EINVAL;

	rdev = &(to_c4iw_dev(context->device)->rdev);
	ucontext = to_c4iw_ucontext(context);

	mm = remove_mmap(ucontext, key, len);
	if (!mm)
		return -EINVAL;
	addr = mm->addr;
	kfree(mm);

	if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) &&
	    (addr < (pci_resource_start(rdev->lldi.pdev, 0) +
		    pci_resource_len(rdev->lldi.pdev, 0)))) {

		/*
		 * MA_SYNC register...
		 */
		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
		ret = io_remap_pfn_range(vma, vma->vm_start,
					 addr >> PAGE_SHIFT,
					 len, vma->vm_page_prot);
	} else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) &&
		   (addr < (pci_resource_start(rdev->lldi.pdev, 2) +
		    pci_resource_len(rdev->lldi.pdev, 2)))) {

		/*
		 * Map user DB or OCQP memory...
		 */
		if (addr >= rdev->oc_mw_pa)
			vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot);
		else {
			if (is_t5(rdev->lldi.adapter_type))
				vma->vm_page_prot =
					t4_pgprot_wc(vma->vm_page_prot);
			else
				vma->vm_page_prot =
					pgprot_noncached(vma->vm_page_prot);
		}
		ret = io_remap_pfn_range(vma, vma->vm_start,
					 addr >> PAGE_SHIFT,
					 len, vma->vm_page_prot);
	} else {

		/*
		 * Map WQ or CQ contig dma memory...
		 */
		ret = remap_pfn_range(vma, vma->vm_start,
				      addr >> PAGE_SHIFT,
				      len, vma->vm_page_prot);
	}

	return ret;
}

static int c4iw_deallocate_pd(struct ib_pd *pd)
{
	struct c4iw_dev *rhp;
	struct c4iw_pd *php;

	php = to_c4iw_pd(pd);
	rhp = php->rhp;
	PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
	c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid);
	mutex_lock(&rhp->rdev.stats.lock);
	rhp->rdev.stats.pd.cur--;
	mutex_unlock(&rhp->rdev.stats.lock);
	kfree(php);
	return 0;
}

static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev,
				      struct ib_ucontext *context,
				      struct ib_udata *udata)
{
	struct c4iw_pd *php;
	u32 pdid;
	struct c4iw_dev *rhp;

	PDBG("%s ibdev %p\n", __func__, ibdev);
	rhp = (struct c4iw_dev *) ibdev;
	pdid =  c4iw_get_resource(&rhp->rdev.resource.pdid_table);
	if (!pdid)
		return ERR_PTR(-EINVAL);
	php = kzalloc(sizeof(*php), GFP_KERNEL);
	if (!php) {
		c4iw_put_resource(&rhp->rdev.resource.pdid_table, pdid);
		return ERR_PTR(-ENOMEM);
	}
	php->pdid = pdid;
	php->rhp = rhp;
	if (context) {
		if (ib_copy_to_udata(udata, &php->pdid, sizeof(u32))) {
			c4iw_deallocate_pd(&php->ibpd);
			return ERR_PTR(-EFAULT);
		}
	}
	mutex_lock(&rhp->rdev.stats.lock);
	rhp->rdev.stats.pd.cur++;
	if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max)
		rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur;
	mutex_unlock(&rhp->rdev.stats.lock);
	PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
	return &php->ibpd;
}

static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
			   u16 *pkey)
{
	PDBG("%s ibdev %p\n", __func__, ibdev);
	*pkey = 0;
	return 0;
}

static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index,
			  union ib_gid *gid)
{
	struct c4iw_dev *dev;

	PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
	       __func__, ibdev, port, index, gid);
	dev = to_c4iw_dev(ibdev);
	BUG_ON(port == 0);
	memset(&(gid->raw[0]), 0, sizeof(gid->raw));
	memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6);
	return 0;
}

static int c4iw_query_device(struct ib_device *ibdev,
			     struct ib_device_attr *props)
{

	struct c4iw_dev *dev;
	PDBG("%s ibdev %p\n", __func__, ibdev);

	dev = to_c4iw_dev(ibdev);
	memset(props, 0, sizeof *props);
	memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
	props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type);
	props->fw_ver = dev->rdev.lldi.fw_vers;
	props->device_cap_flags = dev->device_cap_flags;
	props->page_size_cap = T4_PAGESIZE_MASK;
	props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor;
	props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device;
	props->max_mr_size = T4_MAX_MR_SIZE;
	props->max_qp = dev->rdev.lldi.vr->qp.size / 2;
	props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
	props->max_sge = T4_MAX_RECV_SGE;
	props->max_sge_rd = 1;
	props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter;
	props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp,
				    c4iw_max_read_depth);
	props->max_qp_init_rd_atom = props->max_qp_rd_atom;
	props->max_cq = dev->rdev.lldi.vr->qp.size;
	props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth;
	props->max_mr = c4iw_num_stags(&dev->rdev);
	props->max_pd = T4_MAX_NUM_PD;
	props->local_ca_ack_delay = 0;
	props->max_fast_reg_page_list_len = t4_max_fr_depth(use_dsgl);

	return 0;
}

static int c4iw_query_port(struct ib_device *ibdev, u8 port,
			   struct ib_port_attr *props)
{
	struct c4iw_dev *dev;
	struct net_device *netdev;
	struct in_device *inetdev;

	PDBG("%s ibdev %p\n", __func__, ibdev);

	dev = to_c4iw_dev(ibdev);
	netdev = dev->rdev.lldi.ports[port-1];

	memset(props, 0, sizeof(struct ib_port_attr));
	props->max_mtu = IB_MTU_4096;
	if (netdev->mtu >= 4096)
		props->active_mtu = IB_MTU_4096;
	else if (netdev->mtu >= 2048)
		props->active_mtu = IB_MTU_2048;
	else if (netdev->mtu >= 1024)
		props->active_mtu = IB_MTU_1024;
	else if (netdev->mtu >= 512)
		props->active_mtu = IB_MTU_512;
	else
		props->active_mtu = IB_MTU_256;

	if (!netif_carrier_ok(netdev))
		props->state = IB_PORT_DOWN;
	else {
		inetdev = in_dev_get(netdev);
		if (inetdev) {
			if (inetdev->ifa_list)
				props->state = IB_PORT_ACTIVE;
			else
				props->state = IB_PORT_INIT;
			in_dev_put(inetdev);
		} else
			props->state = IB_PORT_INIT;
	}

	props->port_cap_flags =
	    IB_PORT_CM_SUP |
	    IB_PORT_SNMP_TUNNEL_SUP |
	    IB_PORT_REINIT_SUP |
	    IB_PORT_DEVICE_MGMT_SUP |
	    IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
	props->gid_tbl_len = 1;
	props->pkey_tbl_len = 1;
	props->active_width = 2;
	props->active_speed = IB_SPEED_DDR;
	props->max_msg_sz = -1;

	return 0;
}

static enum rdma_protocol_type
c4iw_query_protocol(struct ib_device *device, u8 port_num)
{
	return RDMA_PROTOCOL_IWARP;
}

static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
			char *buf)
{
	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
						 ibdev.dev);
	PDBG("%s dev 0x%p\n", __func__, dev);
	return sprintf(buf, "%d\n",
		       CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type));
}

static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr,
			   char *buf)
{
	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
						 ibdev.dev);
	PDBG("%s dev 0x%p\n", __func__, dev);

	return sprintf(buf, "%u.%u.%u.%u\n",
			FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers),
			FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers),
			FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers),
			FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
}

static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
			char *buf)
{
	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
						 ibdev.dev);
	struct ethtool_drvinfo info;
	struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0];

	PDBG("%s dev 0x%p\n", __func__, dev);
	lldev->ethtool_ops->get_drvinfo(lldev, &info);
	return sprintf(buf, "%s\n", info.driver);
}

static ssize_t show_board(struct device *dev, struct device_attribute *attr,
			  char *buf)
{
	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
						 ibdev.dev);
	PDBG("%s dev 0x%p\n", __func__, dev);
	return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor,
		       c4iw_dev->rdev.lldi.pdev->device);
}

static int c4iw_get_mib(struct ib_device *ibdev,
			union rdma_protocol_stats *stats)
{
	struct tp_tcp_stats v4, v6;
	struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev);

	cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6);
	memset(stats, 0, sizeof *stats);
	stats->iw.tcpInSegs = v4.tcpInSegs + v6.tcpInSegs;
	stats->iw.tcpOutSegs = v4.tcpOutSegs + v6.tcpOutSegs;
	stats->iw.tcpRetransSegs = v4.tcpRetransSegs + v6.tcpRetransSegs;
	stats->iw.tcpOutRsts = v4.tcpOutRsts + v6.tcpOutSegs;

	return 0;
}

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 *c4iw_class_attributes[] = {
	&dev_attr_hw_rev,
	&dev_attr_fw_ver,
	&dev_attr_hca_type,
	&dev_attr_board_id,
};

int c4iw_register_device(struct c4iw_dev *dev)
{
	int ret;
	int i;

	PDBG("%s c4iw_dev %p\n", __func__, dev);
	BUG_ON(!dev->rdev.lldi.ports[0]);
	strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX);
	memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
	memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
	dev->ibdev.owner = THIS_MODULE;
	dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
	if (fastreg_support)
		dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
	dev->ibdev.local_dma_lkey = 0;
	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_QUERY_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;
	memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC));
	dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
	dev->ibdev.num_comp_vectors =  dev->rdev.lldi.nciq;
	dev->ibdev.dma_device = &(dev->rdev.lldi.pdev->dev);
	dev->ibdev.query_device = c4iw_query_device;
	dev->ibdev.query_port = c4iw_query_port;
	dev->ibdev.query_protocol = c4iw_query_protocol;
	dev->ibdev.query_pkey = c4iw_query_pkey;
	dev->ibdev.query_gid = c4iw_query_gid;
	dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext;
	dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext;
	dev->ibdev.mmap = c4iw_mmap;
	dev->ibdev.alloc_pd = c4iw_allocate_pd;
	dev->ibdev.dealloc_pd = c4iw_deallocate_pd;
	dev->ibdev.create_ah = c4iw_ah_create;
	dev->ibdev.destroy_ah = c4iw_ah_destroy;
	dev->ibdev.create_qp = c4iw_create_qp;
	dev->ibdev.modify_qp = c4iw_ib_modify_qp;
	dev->ibdev.query_qp = c4iw_ib_query_qp;
	dev->ibdev.destroy_qp = c4iw_destroy_qp;
	dev->ibdev.create_cq = c4iw_create_cq;
	dev->ibdev.destroy_cq = c4iw_destroy_cq;
	dev->ibdev.resize_cq = c4iw_resize_cq;
	dev->ibdev.poll_cq = c4iw_poll_cq;
	dev->ibdev.get_dma_mr = c4iw_get_dma_mr;
	dev->ibdev.reg_phys_mr = c4iw_register_phys_mem;
	dev->ibdev.rereg_phys_mr = c4iw_reregister_phys_mem;
	dev->ibdev.reg_user_mr = c4iw_reg_user_mr;
	dev->ibdev.dereg_mr = c4iw_dereg_mr;
	dev->ibdev.alloc_mw = c4iw_alloc_mw;
	dev->ibdev.bind_mw = c4iw_bind_mw;
	dev->ibdev.dealloc_mw = c4iw_dealloc_mw;
	dev->ibdev.alloc_fast_reg_mr = c4iw_alloc_fast_reg_mr;
	dev->ibdev.alloc_fast_reg_page_list = c4iw_alloc_fastreg_pbl;
	dev->ibdev.free_fast_reg_page_list = c4iw_free_fastreg_pbl;
	dev->ibdev.attach_mcast = c4iw_multicast_attach;
	dev->ibdev.detach_mcast = c4iw_multicast_detach;
	dev->ibdev.process_mad = c4iw_process_mad;
	dev->ibdev.req_notify_cq = c4iw_arm_cq;
	dev->ibdev.post_send = c4iw_post_send;
	dev->ibdev.post_recv = c4iw_post_receive;
	dev->ibdev.get_protocol_stats = c4iw_get_mib;
	dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION;

	dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
	if (!dev->ibdev.iwcm)
		return -ENOMEM;

	dev->ibdev.iwcm->connect = c4iw_connect;
	dev->ibdev.iwcm->accept = c4iw_accept_cr;
	dev->ibdev.iwcm->reject = c4iw_reject_cr;
	dev->ibdev.iwcm->create_listen = c4iw_create_listen;
	dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen;
	dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref;
	dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref;
	dev->ibdev.iwcm->get_qp = c4iw_get_qp;

	ret = ib_register_device(&dev->ibdev, NULL);
	if (ret)
		goto bail1;

	for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) {
		ret = device_create_file(&dev->ibdev.dev,
					 c4iw_class_attributes[i]);
		if (ret)
			goto bail2;
	}
	return 0;
bail2:
	ib_unregister_device(&dev->ibdev);
bail1:
	kfree(dev->ibdev.iwcm);
	return ret;
}

void c4iw_unregister_device(struct c4iw_dev *dev)
{
	int i;

	PDBG("%s c4iw_dev %p\n", __func__, dev);
	for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i)
		device_remove_file(&dev->ibdev.dev,
				   c4iw_class_attributes[i]);
	ib_unregister_device(&dev->ibdev);
	kfree(dev->ibdev.iwcm);
	return;
}
Commit	Line	Data
cfdda9d7 SW	1	/*
	2	* Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
	3	*
	4	* This software is available to you under a choice of one of two
	5	* licenses. You may choose to be licensed under the terms of the GNU
	6	* General Public License (GPL) Version 2, available from the file
	7	* COPYING in the main directory of this source tree, or the
	8	* OpenIB.org BSD license below:
	9	*
	10	* Redistribution and use in source and binary forms, with or
	11	* without modification, are permitted provided that the following
	12	* conditions are met:
	13	*
	14	* - Redistributions of source code must retain the above
	15	* copyright notice, this list of conditions and the following
	16	* disclaimer.
	17	*
	18	* - Redistributions in binary form must reproduce the above
	19	* copyright notice, this list of conditions and the following
	20	* disclaimer in the documentation and/or other materials
	21	* provided with the distribution.
	22	*
	23	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	24	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	25	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	26	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	27	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	28	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	29	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	30	* SOFTWARE.
	31	*/
	32	#include <linux/module.h>
	33	#include <linux/moduleparam.h>
	34	#include <linux/device.h>
	35	#include <linux/netdevice.h>
	36	#include <linux/etherdevice.h>
	37	#include <linux/delay.h>
	38	#include <linux/errno.h>
	39	#include <linux/list.h>
	40	#include <linux/spinlock.h>
	41	#include <linux/ethtool.h>
	42	#include <linux/rtnetlink.h>
	43	#include <linux/inetdevice.h>
	44	#include <linux/io.h>
	45
	46	#include <asm/irq.h>
	47	#include <asm/byteorder.h>
	48
	49	#include <rdma/iw_cm.h>
	50	#include <rdma/ib_verbs.h>
	51	#include <rdma/ib_smi.h>
	52	#include <rdma/ib_umem.h>
	53	#include <rdma/ib_user_verbs.h>
	54
	55	#include "iw_cxgb4.h"
	56
40dbf6ee	57	static int fastreg_support = 1;
cfdda9d7	58	module_param(fastreg_support, int, 0644);
40dbf6ee	59	MODULE_PARM_DESC(fastreg_support, "Advertise fastreg support (default=1)");
cfdda9d7	60
cfdda9d7 SW	61	static struct ib_ah c4iw_ah_create(struct ib_pd pd,
	62	struct ib_ah_attr *ah_attr)
	63	{
	64	return ERR_PTR(-ENOSYS);
	65	}
	66
	67	static int c4iw_ah_destroy(struct ib_ah *ah)
	68	{
	69	return -ENOSYS;
	70	}
	71
	72	static int c4iw_multicast_attach(struct ib_qp ibqp, union ib_gid gid, u16 lid)
	73	{
	74	return -ENOSYS;
	75	}
	76
	77	static int c4iw_multicast_detach(struct ib_qp ibqp, union ib_gid gid, u16 lid)
	78	{
	79	return -ENOSYS;
	80	}
	81
	82	static int c4iw_process_mad(struct ib_device *ibdev, int mad_flags,
	83	u8 port_num, struct ib_wc *in_wc,
	84	struct ib_grh in_grh, struct ib_mad in_mad,
	85	struct ib_mad *out_mad)
	86	{
	87	return -ENOSYS;
	88	}
	89
	90	static int c4iw_dealloc_ucontext(struct ib_ucontext *context)
	91	{
	92	struct c4iw_dev *rhp = to_c4iw_dev(context->device);
	93	struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
	94	struct c4iw_mm_entry mm, tmp;
	95
	96	PDBG("%s context %p\n", __func__, context);
	97	list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
	98	kfree(mm);
	99	c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
	100	kfree(ucontext);
	101	return 0;
	102	}
	103
	104	static struct ib_ucontext c4iw_alloc_ucontext(struct ib_device ibdev,
	105	struct ib_udata *udata)
	106	{
	107	struct c4iw_ucontext *context;
	108	struct c4iw_dev *rhp = to_c4iw_dev(ibdev);
05eb2389 SW	109	static int warned;
	110	struct c4iw_alloc_ucontext_resp uresp;
	111	int ret = 0;
	112	struct c4iw_mm_entry *mm = NULL;
cfdda9d7 SW	113
	114	PDBG("%s ibdev %p\n", __func__, ibdev);
	115	context = kzalloc(sizeof(*context), GFP_KERNEL);
05eb2389 SW	116	if (!context) {
	117	ret = -ENOMEM;
	118	goto err;
	119	}
	120
cfdda9d7 SW	121	c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx);
	122	INIT_LIST_HEAD(&context->mmaps);
	123	spin_lock_init(&context->mmap_lock);
05eb2389	124
b7dfa889	125	if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) {
05eb2389 SW	126	if (!warned++)
	127	pr_err(MOD "Warning - downlevel libcxgb4 (non-fatal), device status page disabled.");
	128	rhp->rdev.flags \|= T4_STATUS_PAGE_DISABLED;
	129	} else {
	130	mm = kmalloc(sizeof(*mm), GFP_KERNEL);
bfd2793c YD	131	if (!mm) {
bfd2793c YD	132	ret = -ENOMEM;
05eb2389	133	goto err_free;
bfd2793c	134	}
05eb2389 SW	135
	136	uresp.status_page_size = PAGE_SIZE;
	137
	138	spin_lock(&context->mmap_lock);
	139	uresp.status_page_key = context->key;
	140	context->key += PAGE_SIZE;
	141	spin_unlock(&context->mmap_lock);
	142
b7dfa889 YD	143	ret = ib_copy_to_udata(udata, &uresp,
b7dfa889 YD	144	sizeof(uresp) - sizeof(uresp.reserved));
05eb2389 SW	145	if (ret)
	146	goto err_mm;
	147
	148	mm->key = uresp.status_page_key;
	149	mm->addr = virt_to_phys(rhp->rdev.status_page);
	150	mm->len = PAGE_SIZE;
	151	insert_mmap(context, mm);
	152	}
cfdda9d7	153	return &context->ibucontext;
05eb2389 SW	154	err_mm:
	155	kfree(mm);
	156	err_free:
	157	kfree(context);
	158	err:
	159	return ERR_PTR(ret);
cfdda9d7 SW	160	}
	161
	162	static int c4iw_mmap(struct ib_ucontext context, struct vm_area_struct vma)
	163	{
	164	int len = vma->vm_end - vma->vm_start;
	165	u32 key = vma->vm_pgoff << PAGE_SHIFT;
	166	struct c4iw_rdev *rdev;
	167	int ret = 0;
	168	struct c4iw_mm_entry *mm;
	169	struct c4iw_ucontext *ucontext;
	170	u64 addr;
	171
	172	PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
	173	key, len);
	174
	175	if (vma->vm_start & (PAGE_SIZE-1))
	176	return -EINVAL;
	177
	178	rdev = &(to_c4iw_dev(context->device)->rdev);
	179	ucontext = to_c4iw_ucontext(context);
	180
	181	mm = remove_mmap(ucontext, key, len);
	182	if (!mm)
	183	return -EINVAL;
	184	addr = mm->addr;
	185	kfree(mm);
	186
c6d7b267 SW	187	if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) &&
	188	(addr < (pci_resource_start(rdev->lldi.pdev, 0) +
	189	pci_resource_len(rdev->lldi.pdev, 0)))) {
cfdda9d7 SW	190
cfdda9d7 SW	191	/*
c6d7b267	192	* MA_SYNC register...
cfdda9d7	193	*/
cfdda9d7	194	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
c6d7b267 SW	195	ret = io_remap_pfn_range(vma, vma->vm_start,
	196	addr >> PAGE_SHIFT,
	197	len, vma->vm_page_prot);
	198	} else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) &&
	199	(addr < (pci_resource_start(rdev->lldi.pdev, 2) +
	200	pci_resource_len(rdev->lldi.pdev, 2)))) {
	201
	202	/*
	203	* Map user DB or OCQP memory...
	204	*/
	205	if (addr >= rdev->oc_mw_pa)
	206	vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot);
f079af7a VP	207	else {
	208	if (is_t5(rdev->lldi.adapter_type))
	209	vma->vm_page_prot =
	210	t4_pgprot_wc(vma->vm_page_prot);
	211	else
	212	vma->vm_page_prot =
	213	pgprot_noncached(vma->vm_page_prot);
	214	}
cfdda9d7 SW	215	ret = io_remap_pfn_range(vma, vma->vm_start,
	216	addr >> PAGE_SHIFT,
	217	len, vma->vm_page_prot);
	218	} else {
	219
	220	/*
	221	* Map WQ or CQ contig dma memory...
	222	*/
	223	ret = remap_pfn_range(vma, vma->vm_start,
	224	addr >> PAGE_SHIFT,
	225	len, vma->vm_page_prot);
	226	}
	227
	228	return ret;
	229	}
	230
	231	static int c4iw_deallocate_pd(struct ib_pd *pd)
	232	{
	233	struct c4iw_dev *rhp;
	234	struct c4iw_pd *php;
	235
	236	php = to_c4iw_pd(pd);
	237	rhp = php->rhp;
	238	PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
ec3eead2	239	c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid);
8d81ef34 VP	240	mutex_lock(&rhp->rdev.stats.lock);
	241	rhp->rdev.stats.pd.cur--;
	242	mutex_unlock(&rhp->rdev.stats.lock);
cfdda9d7 SW	243	kfree(php);
	244	return 0;
	245	}
	246
	247	static struct ib_pd c4iw_allocate_pd(struct ib_device ibdev,
	248	struct ib_ucontext *context,
	249	struct ib_udata *udata)
	250	{
	251	struct c4iw_pd *php;
	252	u32 pdid;
	253	struct c4iw_dev *rhp;
	254
	255	PDBG("%s ibdev %p\n", __func__, ibdev);
	256	rhp = (struct c4iw_dev *) ibdev;
ec3eead2	257	pdid = c4iw_get_resource(&rhp->rdev.resource.pdid_table);
cfdda9d7 SW	258	if (!pdid)
	259	return ERR_PTR(-EINVAL);
	260	php = kzalloc(sizeof(*php), GFP_KERNEL);
	261	if (!php) {
ec3eead2	262	c4iw_put_resource(&rhp->rdev.resource.pdid_table, pdid);
cfdda9d7 SW	263	return ERR_PTR(-ENOMEM);
	264	}
	265	php->pdid = pdid;
	266	php->rhp = rhp;
	267	if (context) {
	268	if (ib_copy_to_udata(udata, &php->pdid, sizeof(u32))) {
	269	c4iw_deallocate_pd(&php->ibpd);
	270	return ERR_PTR(-EFAULT);
	271	}
	272	}
8d81ef34 VP	273	mutex_lock(&rhp->rdev.stats.lock);
	274	rhp->rdev.stats.pd.cur++;
	275	if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max)
	276	rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur;
	277	mutex_unlock(&rhp->rdev.stats.lock);
cfdda9d7 SW	278	PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
	279	return &php->ibpd;
	280	}
	281
	282	static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
	283	u16 *pkey)
	284	{
	285	PDBG("%s ibdev %p\n", __func__, ibdev);
	286	*pkey = 0;
	287	return 0;
	288	}
	289
	290	static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index,
	291	union ib_gid *gid)
	292	{
	293	struct c4iw_dev *dev;
	294
	295	PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
	296	__func__, ibdev, port, index, gid);
	297	dev = to_c4iw_dev(ibdev);
	298	BUG_ON(port == 0);
	299	memset(&(gid->raw[0]), 0, sizeof(gid->raw));
	300	memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6);
	301	return 0;
	302	}
	303
	304	static int c4iw_query_device(struct ib_device *ibdev,
	305	struct ib_device_attr *props)
	306	{
	307
	308	struct c4iw_dev *dev;
	309	PDBG("%s ibdev %p\n", __func__, ibdev);
	310
	311	dev = to_c4iw_dev(ibdev);
	312	memset(props, 0, sizeof *props);
	313	memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
f079af7a	314	props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type);
cfdda9d7 SW	315	props->fw_ver = dev->rdev.lldi.fw_vers;
	316	props->device_cap_flags = dev->device_cap_flags;
	317	props->page_size_cap = T4_PAGESIZE_MASK;
	318	props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor;
	319	props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device;
	320	props->max_mr_size = T4_MAX_MR_SIZE;
66eb19af	321	props->max_qp = dev->rdev.lldi.vr->qp.size / 2;
04e10e21	322	props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
cfdda9d7 SW	323	props->max_sge = T4_MAX_RECV_SGE;
cfdda9d7 SW	324	props->max_sge_rd = 1;
4c2c5763 HS	325	props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter;
	326	props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp,
	327	c4iw_max_read_depth);
	328	props->max_qp_init_rd_atom = props->max_qp_rd_atom;
66eb19af	329	props->max_cq = dev->rdev.lldi.vr->qp.size;
04e10e21	330	props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth;
cfdda9d7 SW	331	props->max_mr = c4iw_num_stags(&dev->rdev);
	332	props->max_pd = T4_MAX_NUM_PD;
	333	props->local_ca_ack_delay = 0;
a03d9f94	334	props->max_fast_reg_page_list_len = t4_max_fr_depth(use_dsgl);
cfdda9d7 SW	335
	336	return 0;
	337	}
	338
	339	static int c4iw_query_port(struct ib_device *ibdev, u8 port,
	340	struct ib_port_attr *props)
	341	{
	342	struct c4iw_dev *dev;
	343	struct net_device *netdev;
	344	struct in_device *inetdev;
	345
	346	PDBG("%s ibdev %p\n", __func__, ibdev);
	347
	348	dev = to_c4iw_dev(ibdev);
	349	netdev = dev->rdev.lldi.ports[port-1];
	350
	351	memset(props, 0, sizeof(struct ib_port_attr));
	352	props->max_mtu = IB_MTU_4096;
	353	if (netdev->mtu >= 4096)
	354	props->active_mtu = IB_MTU_4096;
	355	else if (netdev->mtu >= 2048)
	356	props->active_mtu = IB_MTU_2048;
	357	else if (netdev->mtu >= 1024)
	358	props->active_mtu = IB_MTU_1024;
	359	else if (netdev->mtu >= 512)
	360	props->active_mtu = IB_MTU_512;
	361	else
	362	props->active_mtu = IB_MTU_256;
	363
	364	if (!netif_carrier_ok(netdev))
	365	props->state = IB_PORT_DOWN;
	366	else {
	367	inetdev = in_dev_get(netdev);
	368	if (inetdev) {
	369	if (inetdev->ifa_list)
	370	props->state = IB_PORT_ACTIVE;
	371	else
	372	props->state = IB_PORT_INIT;
	373	in_dev_put(inetdev);
	374	} else
	375	props->state = IB_PORT_INIT;
	376	}
	377
	378	props->port_cap_flags =
	379	IB_PORT_CM_SUP \|
	380	IB_PORT_SNMP_TUNNEL_SUP \|
	381	IB_PORT_REINIT_SUP \|
	382	IB_PORT_DEVICE_MGMT_SUP \|
	383	IB_PORT_VENDOR_CLASS_SUP \| IB_PORT_BOOT_MGMT_SUP;
	384	props->gid_tbl_len = 1;
	385	props->pkey_tbl_len = 1;
	386	props->active_width = 2;
2e96691c	387	props->active_speed = IB_SPEED_DDR;
cfdda9d7 SW	388	props->max_msg_sz = -1;
	389
	390	return 0;
	391	}
	392
6b90a6d6 MW	393	static enum rdma_protocol_type
	394	c4iw_query_protocol(struct ib_device *device, u8 port_num)
	395	{
	396	return RDMA_PROTOCOL_IWARP;
	397	}
	398
cfdda9d7 SW	399	static ssize_t show_rev(struct device dev, struct device_attribute attr,
	400	char *buf)
	401	{
	402	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
	403	ibdev.dev);
	404	PDBG("%s dev 0x%p\n", __func__, dev);
f079af7a VP	405	return sprintf(buf, "%d\n",
f079af7a VP	406	CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type));
cfdda9d7 SW	407	}
	408
	409	static ssize_t show_fw_ver(struct device dev, struct device_attribute attr,
	410	char *buf)
	411	{
	412	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
	413	ibdev.dev);
	414	PDBG("%s dev 0x%p\n", __func__, dev);
	415
	416	return sprintf(buf, "%u.%u.%u.%u\n",
b2e1a3f0 HS	417	FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers),
	418	FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers),
	419	FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers),
	420	FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
cfdda9d7 SW	421	}
	422
	423	static ssize_t show_hca(struct device dev, struct device_attribute attr,
	424	char *buf)
	425	{
	426	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
	427	ibdev.dev);
	428	struct ethtool_drvinfo info;
	429	struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0];
	430
	431	PDBG("%s dev 0x%p\n", __func__, dev);
	432	lldev->ethtool_ops->get_drvinfo(lldev, &info);
	433	return sprintf(buf, "%s\n", info.driver);
	434	}
	435
	436	static ssize_t show_board(struct device dev, struct device_attribute attr,
	437	char *buf)
	438	{
	439	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
	440	ibdev.dev);
	441	PDBG("%s dev 0x%p\n", __func__, dev);
	442	return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor,
	443	c4iw_dev->rdev.lldi.pdev->device);
	444	}
	445
	446	static int c4iw_get_mib(struct ib_device *ibdev,
	447	union rdma_protocol_stats *stats)
	448	{
de5dd81b SW	449	struct tp_tcp_stats v4, v6;
	450	struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev);
	451
	452	cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6);
	453	memset(stats, 0, sizeof *stats);
	454	stats->iw.tcpInSegs = v4.tcpInSegs + v6.tcpInSegs;
	455	stats->iw.tcpOutSegs = v4.tcpOutSegs + v6.tcpOutSegs;
	456	stats->iw.tcpRetransSegs = v4.tcpRetransSegs + v6.tcpRetransSegs;
	457	stats->iw.tcpOutRsts = v4.tcpOutRsts + v6.tcpOutSegs;
	458
	459	return 0;
cfdda9d7 SW	460	}
	461
	462	static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
	463	static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
	464	static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
	465	static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
	466
	467	static struct device_attribute *c4iw_class_attributes[] = {
	468	&dev_attr_hw_rev,
	469	&dev_attr_fw_ver,
	470	&dev_attr_hca_type,
	471	&dev_attr_board_id,
	472	};
	473
	474	int c4iw_register_device(struct c4iw_dev *dev)
	475	{
	476	int ret;
	477	int i;
	478
	479	PDBG("%s c4iw_dev %p\n", __func__, dev);
	480	BUG_ON(!dev->rdev.lldi.ports[0]);
	481	strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX);
	482	memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
	483	memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
	484	dev->ibdev.owner = THIS_MODULE;
	485	dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY \| IB_DEVICE_MEM_WINDOW;
	486	if (fastreg_support)
	487	dev->device_cap_flags \|= IB_DEVICE_MEM_MGT_EXTENSIONS;
	488	dev->ibdev.local_dma_lkey = 0;
	489	dev->ibdev.uverbs_cmd_mask =
	490	(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) \|
	491	(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) \|
	492	(1ull << IB_USER_VERBS_CMD_QUERY_PORT) \|
	493	(1ull << IB_USER_VERBS_CMD_ALLOC_PD) \|
	494	(1ull << IB_USER_VERBS_CMD_DEALLOC_PD) \|
	495	(1ull << IB_USER_VERBS_CMD_REG_MR) \|
	496	(1ull << IB_USER_VERBS_CMD_DEREG_MR) \|
	497	(1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) \|
	498	(1ull << IB_USER_VERBS_CMD_CREATE_CQ) \|
	499	(1ull << IB_USER_VERBS_CMD_DESTROY_CQ) \|
	500	(1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) \|
	501	(1ull << IB_USER_VERBS_CMD_CREATE_QP) \|
	502	(1ull << IB_USER_VERBS_CMD_MODIFY_QP) \|
67bbc055	503	(1ull << IB_USER_VERBS_CMD_QUERY_QP) \|
cfdda9d7 SW	504	(1ull << IB_USER_VERBS_CMD_POLL_CQ) \|
	505	(1ull << IB_USER_VERBS_CMD_DESTROY_QP) \|
	506	(1ull << IB_USER_VERBS_CMD_POST_SEND) \|
	507	(1ull << IB_USER_VERBS_CMD_POST_RECV);
	508	dev->ibdev.node_type = RDMA_NODE_RNIC;
	509	memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC));
	510	dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
cf38be6d	511	dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq;
cfdda9d7 SW	512	dev->ibdev.dma_device = &(dev->rdev.lldi.pdev->dev);
	513	dev->ibdev.query_device = c4iw_query_device;
	514	dev->ibdev.query_port = c4iw_query_port;
6b90a6d6	515	dev->ibdev.query_protocol = c4iw_query_protocol;
cfdda9d7 SW	516	dev->ibdev.query_pkey = c4iw_query_pkey;
	517	dev->ibdev.query_gid = c4iw_query_gid;
	518	dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext;
	519	dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext;
	520	dev->ibdev.mmap = c4iw_mmap;
	521	dev->ibdev.alloc_pd = c4iw_allocate_pd;
	522	dev->ibdev.dealloc_pd = c4iw_deallocate_pd;
	523	dev->ibdev.create_ah = c4iw_ah_create;
	524	dev->ibdev.destroy_ah = c4iw_ah_destroy;
	525	dev->ibdev.create_qp = c4iw_create_qp;
	526	dev->ibdev.modify_qp = c4iw_ib_modify_qp;
67bbc055	527	dev->ibdev.query_qp = c4iw_ib_query_qp;
cfdda9d7 SW	528	dev->ibdev.destroy_qp = c4iw_destroy_qp;
	529	dev->ibdev.create_cq = c4iw_create_cq;
	530	dev->ibdev.destroy_cq = c4iw_destroy_cq;
	531	dev->ibdev.resize_cq = c4iw_resize_cq;
	532	dev->ibdev.poll_cq = c4iw_poll_cq;
	533	dev->ibdev.get_dma_mr = c4iw_get_dma_mr;
	534	dev->ibdev.reg_phys_mr = c4iw_register_phys_mem;
	535	dev->ibdev.rereg_phys_mr = c4iw_reregister_phys_mem;
	536	dev->ibdev.reg_user_mr = c4iw_reg_user_mr;
	537	dev->ibdev.dereg_mr = c4iw_dereg_mr;
	538	dev->ibdev.alloc_mw = c4iw_alloc_mw;
	539	dev->ibdev.bind_mw = c4iw_bind_mw;
	540	dev->ibdev.dealloc_mw = c4iw_dealloc_mw;
	541	dev->ibdev.alloc_fast_reg_mr = c4iw_alloc_fast_reg_mr;
	542	dev->ibdev.alloc_fast_reg_page_list = c4iw_alloc_fastreg_pbl;
	543	dev->ibdev.free_fast_reg_page_list = c4iw_free_fastreg_pbl;
	544	dev->ibdev.attach_mcast = c4iw_multicast_attach;
	545	dev->ibdev.detach_mcast = c4iw_multicast_detach;
	546	dev->ibdev.process_mad = c4iw_process_mad;
	547	dev->ibdev.req_notify_cq = c4iw_arm_cq;
	548	dev->ibdev.post_send = c4iw_post_send;
	549	dev->ibdev.post_recv = c4iw_post_receive;
	550	dev->ibdev.get_protocol_stats = c4iw_get_mib;
c6d7b267	551	dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION;
cfdda9d7 SW	552
	553	dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
	554	if (!dev->ibdev.iwcm)
	555	return -ENOMEM;
	556
	557	dev->ibdev.iwcm->connect = c4iw_connect;
	558	dev->ibdev.iwcm->accept = c4iw_accept_cr;
	559	dev->ibdev.iwcm->reject = c4iw_reject_cr;
	560	dev->ibdev.iwcm->create_listen = c4iw_create_listen;
	561	dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen;
	562	dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref;
	563	dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref;
	564	dev->ibdev.iwcm->get_qp = c4iw_get_qp;
	565
9a6edb60	566	ret = ib_register_device(&dev->ibdev, NULL);
cfdda9d7 SW	567	if (ret)
	568	goto bail1;
	569
	570	for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) {
	571	ret = device_create_file(&dev->ibdev.dev,
	572	c4iw_class_attributes[i]);
	573	if (ret)
	574	goto bail2;
	575	}
	576	return 0;
	577	bail2:
	578	ib_unregister_device(&dev->ibdev);
	579	bail1:
	580	kfree(dev->ibdev.iwcm);
	581	return ret;
	582	}
	583
	584	void c4iw_unregister_device(struct c4iw_dev *dev)
	585	{
	586	int i;
	587
	588	PDBG("%s c4iw_dev %p\n", __func__, dev);
	589	for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i)
	590	device_remove_file(&dev->ibdev.dev,
	591	c4iw_class_attributes[i]);
	592	ib_unregister_device(&dev->ibdev);
	593	kfree(dev->ibdev.iwcm);
	594	return;
	595	}