[linux-block.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 <net/addrconf.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 void c4iw_dealloc_ucontext(struct ib_ucontext *context)
{
	struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
	struct c4iw_dev *rhp;
	struct c4iw_mm_entry *mm, *tmp;

	pr_debug("context %p\n", context);
	rhp = to_c4iw_dev(ucontext->ibucontext.device);

	list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
		kfree(mm);
	c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
}

static int c4iw_alloc_ucontext(struct ib_ucontext *ucontext,
			       struct ib_udata *udata)
{
	struct ib_device *ibdev = ucontext->device;
	struct c4iw_ucontext *context = to_c4iw_ucontext(ucontext);
	struct c4iw_dev *rhp = to_c4iw_dev(ibdev);
	struct c4iw_alloc_ucontext_resp uresp;
	int ret = 0;
	struct c4iw_mm_entry *mm = NULL;

	pr_debug("ibdev %p\n", ibdev);
	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)) {
		pr_err_once("Warning - downlevel libcxgb4 (non-fatal), device status page disabled\n");
		rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED;
	} else {
		mm = kmalloc(sizeof(*mm), GFP_KERNEL);
		if (!mm) {
			ret = -ENOMEM;
			goto err;
		}

		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;
		mm->vaddr = NULL;
		mm->dma_addr = 0;
		insert_flag_to_mmap(&rhp->rdev, mm, mm->addr);
		insert_mmap(context, mm);
	}
	return 0;
err_mm:
	kfree(mm);
err:
	return 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;
	u8 mmap_flag;
	size_t size;
	void *vaddr;
	unsigned long vm_pgoff;
	dma_addr_t dma_addr;

	pr_debug("pgoff 0x%lx key 0x%x len %d\n", 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;
	vaddr = mm->vaddr;
	dma_addr = mm->dma_addr;
	size = mm->len;
	mmap_flag = mm->mmap_flag;
	kfree(mm);

	switch (mmap_flag) {
	case CXGB4_MMAP_BAR:
		ret = io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT,
					 len,
					 pgprot_noncached(vma->vm_page_prot));
		break;
	case CXGB4_MMAP_BAR_WC:
		ret = io_remap_pfn_range(vma, vma->vm_start,
					 addr >> PAGE_SHIFT,
					 len, t4_pgprot_wc(vma->vm_page_prot));
		break;
	case CXGB4_MMAP_CONTIG:
		ret = io_remap_pfn_range(vma, vma->vm_start,
					 addr >> PAGE_SHIFT,
					 len, vma->vm_page_prot);
		break;
	case CXGB4_MMAP_NON_CONTIG:
		vm_pgoff = vma->vm_pgoff;
		vma->vm_pgoff = 0;
		ret = dma_mmap_coherent(&rdev->lldi.pdev->dev, vma,
					vaddr, dma_addr, size);
		vma->vm_pgoff = vm_pgoff;
		break;
	default:
		ret = -EINVAL;
		break;
	}

	return ret;
}

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

	php = to_c4iw_pd(pd);
	rhp = php->rhp;
	pr_debug("ibpd %p pdid 0x%x\n", 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);
	return 0;
}

static int c4iw_allocate_pd(struct ib_pd *pd, struct ib_udata *udata)
{
	struct c4iw_pd *php = to_c4iw_pd(pd);
	struct ib_device *ibdev = pd->device;
	u32 pdid;
	struct c4iw_dev *rhp;

	pr_debug("ibdev %p\n", ibdev);
	rhp = (struct c4iw_dev *) ibdev;
	pdid =  c4iw_get_resource(&rhp->rdev.resource.pdid_table);
	if (!pdid)
		return -EINVAL;

	php->pdid = pdid;
	php->rhp = rhp;
	if (udata) {
		struct c4iw_alloc_pd_resp uresp = {.pdid = php->pdid};

		if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
			c4iw_deallocate_pd(&php->ibpd, udata);
			return -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);
	pr_debug("pdid 0x%0x ptr 0x%p\n", pdid, php);
	return 0;
}

static int c4iw_query_gid(struct ib_device *ibdev, u32 port, int index,
			  union ib_gid *gid)
{
	struct c4iw_dev *dev;

	pr_debug("ibdev %p, port %u, index %d, gid %p\n",
		 ibdev, port, index, gid);
	if (!port)
		return -EINVAL;
	dev = to_c4iw_dev(ibdev);
	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 ib_udata *uhw)
{

	struct c4iw_dev *dev;

	pr_debug("ibdev %p\n", ibdev);

	if (uhw->inlen || uhw->outlen)
		return -EINVAL;

	dev = to_c4iw_dev(ibdev);
	addrconf_addr_eui48((u8 *)&props->sys_image_guid,
			    dev->rdev.lldi.ports[0]->dev_addr);
	props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type);
	props->fw_ver = dev->rdev.lldi.fw_vers;
	props->device_cap_flags = IB_DEVICE_MEM_WINDOW;
	props->kernel_cap_flags = IBK_LOCAL_DMA_LKEY;
	if (fastreg_support)
		props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
	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_srq = dev->rdev.lldi.vr->srq.size;
	props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
	props->max_srq_wr = dev->rdev.hw_queue.t4_max_qp_depth;
	props->max_send_sge = min(T4_MAX_SEND_SGE, T4_MAX_WRITE_SGE);
	props->max_recv_sge = T4_MAX_RECV_SGE;
	props->max_srq_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(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl);

	return 0;
}

static int c4iw_query_port(struct ib_device *ibdev, u32 port,
			   struct ib_port_attr *props)
{
	int ret = 0;
	pr_debug("ibdev %p\n", ibdev);
	ret = ib_get_eth_speed(ibdev, port, &props->active_speed,
			       &props->active_width);

	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->max_msg_sz = -1;

	return ret;
}

static ssize_t hw_rev_show(struct device *dev,
			   struct device_attribute *attr, char *buf)
{
	struct c4iw_dev *c4iw_dev =
			rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev);

	pr_debug("dev 0x%p\n", dev);
	return sysfs_emit(
		buf, "%d\n",
		CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type));
}
static DEVICE_ATTR_RO(hw_rev);

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

	pr_debug("dev 0x%p\n", dev);
	lldev->ethtool_ops->get_drvinfo(lldev, &info);
	return sysfs_emit(buf, "%s\n", info.driver);
}
static DEVICE_ATTR_RO(hca_type);

static ssize_t board_id_show(struct device *dev, struct device_attribute *attr,
			     char *buf)
{
	struct c4iw_dev *c4iw_dev =
			rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev);

	pr_debug("dev 0x%p\n", dev);
	return sysfs_emit(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor,
			  c4iw_dev->rdev.lldi.pdev->device);
}
static DEVICE_ATTR_RO(board_id);

enum counters {
	IP4INSEGS,
	IP4OUTSEGS,
	IP4RETRANSSEGS,
	IP4OUTRSTS,
	IP6INSEGS,
	IP6OUTSEGS,
	IP6RETRANSSEGS,
	IP6OUTRSTS,
	NR_COUNTERS
};

static const struct rdma_stat_desc cxgb4_descs[] = {
	[IP4INSEGS].name = "ip4InSegs",
	[IP4OUTSEGS].name = "ip4OutSegs",
	[IP4RETRANSSEGS].name = "ip4RetransSegs",
	[IP4OUTRSTS].name = "ip4OutRsts",
	[IP6INSEGS].name = "ip6InSegs",
	[IP6OUTSEGS].name = "ip6OutSegs",
	[IP6RETRANSSEGS].name = "ip6RetransSegs",
	[IP6OUTRSTS].name = "ip6OutRsts"
};

static struct rdma_hw_stats *c4iw_alloc_device_stats(struct ib_device *ibdev)
{
	BUILD_BUG_ON(ARRAY_SIZE(cxgb4_descs) != NR_COUNTERS);

	/* FIXME: these look like port stats */
	return rdma_alloc_hw_stats_struct(cxgb4_descs, NR_COUNTERS,
					  RDMA_HW_STATS_DEFAULT_LIFESPAN);
}

static int c4iw_get_mib(struct ib_device *ibdev,
			struct rdma_hw_stats *stats,
			u32 port, int index)
{
	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);
	stats->value[IP4INSEGS] = v4.tcp_in_segs;
	stats->value[IP4OUTSEGS] = v4.tcp_out_segs;
	stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs;
	stats->value[IP4OUTRSTS] = v4.tcp_out_rsts;
	stats->value[IP6INSEGS] = v6.tcp_in_segs;
	stats->value[IP6OUTSEGS] = v6.tcp_out_segs;
	stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs;
	stats->value[IP6OUTRSTS] = v6.tcp_out_rsts;

	return stats->num_counters;
}

static struct attribute *c4iw_class_attributes[] = {
	&dev_attr_hw_rev.attr,
	&dev_attr_hca_type.attr,
	&dev_attr_board_id.attr,
	NULL
};

static const struct attribute_group c4iw_attr_group = {
	.attrs = c4iw_class_attributes,
};

static int c4iw_port_immutable(struct ib_device *ibdev, u32 port_num,
			       struct ib_port_immutable *immutable)
{
	struct ib_port_attr attr;
	int err;

	immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;

	err = ib_query_port(ibdev, port_num, &attr);
	if (err)
		return err;

	immutable->gid_tbl_len = attr.gid_tbl_len;

	return 0;
}

static void get_dev_fw_str(struct ib_device *dev, char *str)
{
	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
						 ibdev);
	pr_debug("dev 0x%p\n", dev);

	snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u.%u",
		 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 const struct ib_device_ops c4iw_dev_ops = {
	.owner = THIS_MODULE,
	.driver_id = RDMA_DRIVER_CXGB4,
	.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION,

	.alloc_hw_device_stats = c4iw_alloc_device_stats,
	.alloc_mr = c4iw_alloc_mr,
	.alloc_pd = c4iw_allocate_pd,
	.alloc_ucontext = c4iw_alloc_ucontext,
	.create_cq = c4iw_create_cq,
	.create_qp = c4iw_create_qp,
	.create_srq = c4iw_create_srq,
	.dealloc_pd = c4iw_deallocate_pd,
	.dealloc_ucontext = c4iw_dealloc_ucontext,
	.dereg_mr = c4iw_dereg_mr,
	.destroy_cq = c4iw_destroy_cq,
	.destroy_qp = c4iw_destroy_qp,
	.destroy_srq = c4iw_destroy_srq,
	.device_group = &c4iw_attr_group,
	.fill_res_cq_entry = c4iw_fill_res_cq_entry,
	.fill_res_cm_id_entry = c4iw_fill_res_cm_id_entry,
	.fill_res_mr_entry = c4iw_fill_res_mr_entry,
	.fill_res_qp_entry = c4iw_fill_res_qp_entry,
	.get_dev_fw_str = get_dev_fw_str,
	.get_dma_mr = c4iw_get_dma_mr,
	.get_hw_stats = c4iw_get_mib,
	.get_port_immutable = c4iw_port_immutable,
	.iw_accept = c4iw_accept_cr,
	.iw_add_ref = c4iw_qp_add_ref,
	.iw_connect = c4iw_connect,
	.iw_create_listen = c4iw_create_listen,
	.iw_destroy_listen = c4iw_destroy_listen,
	.iw_get_qp = c4iw_get_qp,
	.iw_reject = c4iw_reject_cr,
	.iw_rem_ref = c4iw_qp_rem_ref,
	.map_mr_sg = c4iw_map_mr_sg,
	.mmap = c4iw_mmap,
	.modify_qp = c4iw_ib_modify_qp,
	.modify_srq = c4iw_modify_srq,
	.poll_cq = c4iw_poll_cq,
	.post_recv = c4iw_post_receive,
	.post_send = c4iw_post_send,
	.post_srq_recv = c4iw_post_srq_recv,
	.query_device = c4iw_query_device,
	.query_gid = c4iw_query_gid,
	.query_port = c4iw_query_port,
	.query_qp = c4iw_ib_query_qp,
	.reg_user_mr = c4iw_reg_user_mr,
	.req_notify_cq = c4iw_arm_cq,

	INIT_RDMA_OBJ_SIZE(ib_cq, c4iw_cq, ibcq),
	INIT_RDMA_OBJ_SIZE(ib_mw, c4iw_mw, ibmw),
	INIT_RDMA_OBJ_SIZE(ib_pd, c4iw_pd, ibpd),
	INIT_RDMA_OBJ_SIZE(ib_qp, c4iw_qp, ibqp),
	INIT_RDMA_OBJ_SIZE(ib_srq, c4iw_srq, ibsrq),
	INIT_RDMA_OBJ_SIZE(ib_ucontext, c4iw_ucontext, ibucontext),
};

static int set_netdevs(struct ib_device *ib_dev, struct c4iw_rdev *rdev)
{
	int ret;
	int i;

	for (i = 0; i < rdev->lldi.nports; i++) {
		ret = ib_device_set_netdev(ib_dev, rdev->lldi.ports[i],
					   i + 1);
		if (ret)
			return ret;
	}
	return 0;
}

void c4iw_register_device(struct work_struct *work)
{
	int ret;
	struct uld_ctx *ctx = container_of(work, struct uld_ctx, reg_work);
	struct c4iw_dev *dev = ctx->dev;

	pr_debug("c4iw_dev %p\n", dev);
	addrconf_addr_eui48((u8 *)&dev->ibdev.node_guid,
			    dev->rdev.lldi.ports[0]->dev_addr);
	dev->ibdev.local_dma_lkey = 0;
	dev->ibdev.node_type = RDMA_NODE_RNIC;
	BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX);
	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.dev.parent = &dev->rdev.lldi.pdev->dev;

	memcpy(dev->ibdev.iw_ifname, dev->rdev.lldi.ports[0]->name,
	       sizeof(dev->ibdev.iw_ifname));

	ib_set_device_ops(&dev->ibdev, &c4iw_dev_ops);
	ret = set_netdevs(&dev->ibdev, &dev->rdev);
	if (ret)
		goto err_dealloc_ctx;
	dma_set_max_seg_size(&dev->rdev.lldi.pdev->dev, UINT_MAX);
	ret = ib_register_device(&dev->ibdev, "cxgb4_%d",
				 &dev->rdev.lldi.pdev->dev);
	if (ret)
		goto err_dealloc_ctx;
	return;

err_dealloc_ctx:
	pr_err("%s - Failed registering iwarp device: %d\n",
	       pci_name(ctx->lldi.pdev), ret);
	c4iw_dealloc(ctx);
	return;
}

void c4iw_unregister_device(struct c4iw_dev *dev)
{
	pr_debug("c4iw_dev %p\n", dev);
	ib_unregister_device(&dev->ibdev);
	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>
46c87b42	44	#include <net/addrconf.h>
cfdda9d7 SW	45	#include <linux/io.h>
	46
	47	#include <asm/irq.h>
	48	#include <asm/byteorder.h>
	49
	50	#include <rdma/iw_cm.h>
	51	#include <rdma/ib_verbs.h>
	52	#include <rdma/ib_smi.h>
	53	#include <rdma/ib_umem.h>
	54	#include <rdma/ib_user_verbs.h>
	55
	56	#include "iw_cxgb4.h"
	57
40dbf6ee	58	static int fastreg_support = 1;
cfdda9d7	59	module_param(fastreg_support, int, 0644);
40dbf6ee	60	MODULE_PARM_DESC(fastreg_support, "Advertise fastreg support (default=1)");
cfdda9d7	61
a2a074ef	62	static void c4iw_dealloc_ucontext(struct ib_ucontext *context)
cfdda9d7	63	{
cfe876d8	64	struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
c12a67fe	65	struct c4iw_dev *rhp;
cfdda9d7 SW	66	struct c4iw_mm_entry mm, tmp;
cfdda9d7 SW	67
cfe876d8	68	pr_debug("context %p\n", context);
c12a67fe SW	69	rhp = to_c4iw_dev(ucontext->ibucontext.device);
c12a67fe SW	70
cfdda9d7 SW	71	list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
	72	kfree(mm);
	73	c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
cfdda9d7 SW	74	}
cfdda9d7 SW	75
a2a074ef LR	76	static int c4iw_alloc_ucontext(struct ib_ucontext *ucontext,
a2a074ef LR	77	struct ib_udata *udata)
cfdda9d7	78	{
a2a074ef LR	79	struct ib_device *ibdev = ucontext->device;
a2a074ef LR	80	struct c4iw_ucontext *context = to_c4iw_ucontext(ucontext);
cfdda9d7	81	struct c4iw_dev *rhp = to_c4iw_dev(ibdev);
05eb2389 SW	82	struct c4iw_alloc_ucontext_resp uresp;
	83	int ret = 0;
	84	struct c4iw_mm_entry *mm = NULL;
cfdda9d7	85
548ddb19	86	pr_debug("ibdev %p\n", ibdev);
cfdda9d7 SW	87	c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx);
	88	INIT_LIST_HEAD(&context->mmaps);
	89	spin_lock_init(&context->mmap_lock);
05eb2389	90
b7dfa889	91	if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) {
700456bd	92	pr_err_once("Warning - downlevel libcxgb4 (non-fatal), device status page disabled\n");
05eb2389 SW	93	rhp->rdev.flags \|= T4_STATUS_PAGE_DISABLED;
	94	} else {
	95	mm = kmalloc(sizeof(*mm), GFP_KERNEL);
bfd2793c YD	96	if (!mm) {
bfd2793c YD	97	ret = -ENOMEM;
a2a074ef	98	goto err;
bfd2793c	99	}
05eb2389 SW	100
	101	uresp.status_page_size = PAGE_SIZE;
	102
	103	spin_lock(&context->mmap_lock);
	104	uresp.status_page_key = context->key;
	105	context->key += PAGE_SIZE;
	106	spin_unlock(&context->mmap_lock);
	107
b7dfa889 YD	108	ret = ib_copy_to_udata(udata, &uresp,
b7dfa889 YD	109	sizeof(uresp) - sizeof(uresp.reserved));
05eb2389 SW	110	if (ret)
	111	goto err_mm;
	112
	113	mm->key = uresp.status_page_key;
	114	mm->addr = virt_to_phys(rhp->rdev.status_page);
	115	mm->len = PAGE_SIZE;
75ab1533 AMMR	116	mm->vaddr = NULL;
	117	mm->dma_addr = 0;
	118	insert_flag_to_mmap(&rhp->rdev, mm, mm->addr);
05eb2389 SW	119	insert_mmap(context, mm);
05eb2389 SW	120	}
a2a074ef	121	return 0;
05eb2389 SW	122	err_mm:
05eb2389 SW	123	kfree(mm);
05eb2389	124	err:
a2a074ef	125	return ret;
cfdda9d7 SW	126	}
	127
	128	static int c4iw_mmap(struct ib_ucontext context, struct vm_area_struct vma)
	129	{
	130	int len = vma->vm_end - vma->vm_start;
	131	u32 key = vma->vm_pgoff << PAGE_SHIFT;
	132	struct c4iw_rdev *rdev;
	133	int ret = 0;
	134	struct c4iw_mm_entry *mm;
	135	struct c4iw_ucontext *ucontext;
	136	u64 addr;
75ab1533 AMMR	137	u8 mmap_flag;
	138	size_t size;
	139	void *vaddr;
	140	unsigned long vm_pgoff;
	141	dma_addr_t dma_addr;
cfdda9d7	142
548ddb19	143	pr_debug("pgoff 0x%lx key 0x%x len %d\n", vma->vm_pgoff,
a9a42886	144	key, len);
cfdda9d7 SW	145
	146	if (vma->vm_start & (PAGE_SIZE-1))
	147	return -EINVAL;
	148
	149	rdev = &(to_c4iw_dev(context->device)->rdev);
	150	ucontext = to_c4iw_ucontext(context);
	151
	152	mm = remove_mmap(ucontext, key, len);
	153	if (!mm)
	154	return -EINVAL;
	155	addr = mm->addr;
75ab1533 AMMR	156	vaddr = mm->vaddr;
	157	dma_addr = mm->dma_addr;
	158	size = mm->len;
	159	mmap_flag = mm->mmap_flag;
cfdda9d7 SW	160	kfree(mm);
cfdda9d7 SW	161
75ab1533 AMMR	162	switch (mmap_flag) {
	163	case CXGB4_MMAP_BAR:
	164	ret = io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT,
	165	len,
	166	pgprot_noncached(vma->vm_page_prot));
	167	break;
	168	case CXGB4_MMAP_BAR_WC:
c6d7b267 SW	169	ret = io_remap_pfn_range(vma, vma->vm_start,
c6d7b267 SW	170	addr >> PAGE_SHIFT,
75ab1533 AMMR	171	len, t4_pgprot_wc(vma->vm_page_prot));
	172	break;
	173	case CXGB4_MMAP_CONTIG:
cfdda9d7 SW	174	ret = io_remap_pfn_range(vma, vma->vm_start,
	175	addr >> PAGE_SHIFT,
	176	len, vma->vm_page_prot);
75ab1533 AMMR	177	break;
	178	case CXGB4_MMAP_NON_CONTIG:
	179	vm_pgoff = vma->vm_pgoff;
	180	vma->vm_pgoff = 0;
	181	ret = dma_mmap_coherent(&rdev->lldi.pdev->dev, vma,
	182	vaddr, dma_addr, size);
	183	vma->vm_pgoff = vm_pgoff;
	184	break;
	185	default:
	186	ret = -EINVAL;
	187	break;
cfdda9d7 SW	188	}
	189
	190	return ret;
	191	}
	192
91a7c58f	193	static int c4iw_deallocate_pd(struct ib_pd pd, struct ib_udata udata)
cfdda9d7 SW	194	{
	195	struct c4iw_dev *rhp;
	196	struct c4iw_pd *php;
	197
	198	php = to_c4iw_pd(pd);
	199	rhp = php->rhp;
548ddb19	200	pr_debug("ibpd %p pdid 0x%x\n", pd, php->pdid);
ec3eead2	201	c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid);
8d81ef34 VP	202	mutex_lock(&rhp->rdev.stats.lock);
	203	rhp->rdev.stats.pd.cur--;
	204	mutex_unlock(&rhp->rdev.stats.lock);
91a7c58f	205	return 0;
cfdda9d7 SW	206	}
cfdda9d7 SW	207
ff23dfa1	208	static int c4iw_allocate_pd(struct ib_pd pd, struct ib_udata udata)
cfdda9d7	209	{
21a428a0 LR	210	struct c4iw_pd *php = to_c4iw_pd(pd);
21a428a0 LR	211	struct ib_device *ibdev = pd->device;
cfdda9d7 SW	212	u32 pdid;
	213	struct c4iw_dev *rhp;
	214
548ddb19	215	pr_debug("ibdev %p\n", ibdev);
cfdda9d7	216	rhp = (struct c4iw_dev *) ibdev;
ec3eead2	217	pdid = c4iw_get_resource(&rhp->rdev.resource.pdid_table);
cfdda9d7	218	if (!pdid)
21a428a0 LR	219	return -EINVAL;
21a428a0 LR	220
cfdda9d7 SW	221	php->pdid = pdid;
cfdda9d7 SW	222	php->rhp = rhp;
ff23dfa1	223	if (udata) {
7f86260b JG	224	struct c4iw_alloc_pd_resp uresp = {.pdid = php->pdid};
	225
	226	if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
c4367a26	227	c4iw_deallocate_pd(&php->ibpd, udata);
21a428a0	228	return -EFAULT;
cfdda9d7 SW	229	}
cfdda9d7 SW	230	}
8d81ef34 VP	231	mutex_lock(&rhp->rdev.stats.lock);
	232	rhp->rdev.stats.pd.cur++;
	233	if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max)
	234	rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur;
	235	mutex_unlock(&rhp->rdev.stats.lock);
548ddb19	236	pr_debug("pdid 0x%0x ptr 0x%p\n", pdid, php);
21a428a0	237	return 0;
cfdda9d7 SW	238	}
cfdda9d7 SW	239
1fb7f897	240	static int c4iw_query_gid(struct ib_device *ibdev, u32 port, int index,
cfdda9d7 SW	241	union ib_gid *gid)
	242	{
	243	struct c4iw_dev *dev;
	244
1fb7f897	245	pr_debug("ibdev %p, port %u, index %d, gid %p\n",
548ddb19	246	ibdev, port, index, gid);
ba97b749 SW	247	if (!port)
ba97b749 SW	248	return -EINVAL;
cfdda9d7	249	dev = to_c4iw_dev(ibdev);
cfdda9d7 SW	250	memset(&(gid->raw[0]), 0, sizeof(gid->raw));
	251	memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6);
	252	return 0;
	253	}
	254
2528e33e MB	255	static int c4iw_query_device(struct ib_device ibdev, struct ib_device_attr props,
2528e33e MB	256	struct ib_udata *uhw)
cfdda9d7 SW	257	{
	258
	259	struct c4iw_dev *dev;
2528e33e	260
548ddb19	261	pr_debug("ibdev %p\n", ibdev);
cfdda9d7	262
2528e33e MB	263	if (uhw->inlen \|\| uhw->outlen)
	264	return -EINVAL;
	265
cfdda9d7	266	dev = to_c4iw_dev(ibdev);
46c87b42 KH	267	addrconf_addr_eui48((u8 *)&props->sys_image_guid,
46c87b42 KH	268	dev->rdev.lldi.ports[0]->dev_addr);
f079af7a	269	props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type);
cfdda9d7	270	props->fw_ver = dev->rdev.lldi.fw_vers;
e945c653 JG	271	props->device_cap_flags = IB_DEVICE_MEM_WINDOW;
	272	props->kernel_cap_flags = IBK_LOCAL_DMA_LKEY;
	273	if (fastreg_support)
	274	props->device_cap_flags \|= IB_DEVICE_MEM_MGT_EXTENSIONS;
cfdda9d7 SW	275	props->page_size_cap = T4_PAGESIZE_MASK;
	276	props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor;
	277	props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device;
	278	props->max_mr_size = T4_MAX_MR_SIZE;
66eb19af	279	props->max_qp = dev->rdev.lldi.vr->qp.size / 2;
6a0b6174	280	props->max_srq = dev->rdev.lldi.vr->srq.size;
04e10e21	281	props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
6a0b6174	282	props->max_srq_wr = dev->rdev.hw_queue.t4_max_qp_depth;
33023fb8 SW	283	props->max_send_sge = min(T4_MAX_SEND_SGE, T4_MAX_WRITE_SGE);
33023fb8 SW	284	props->max_recv_sge = T4_MAX_RECV_SGE;
6a0b6174	285	props->max_srq_sge = T4_MAX_RECV_SGE;
cfdda9d7	286	props->max_sge_rd = 1;
4c2c5763 HS	287	props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter;
	288	props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp,
	289	c4iw_max_read_depth);
	290	props->max_qp_init_rd_atom = props->max_qp_rd_atom;
66eb19af	291	props->max_cq = dev->rdev.lldi.vr->qp.size;
04e10e21	292	props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth;
cfdda9d7 SW	293	props->max_mr = c4iw_num_stags(&dev->rdev);
	294	props->max_pd = T4_MAX_NUM_PD;
	295	props->local_ca_ack_delay = 0;
ee30f7d5 H	296	props->max_fast_reg_page_list_len =
ee30f7d5 H	297	t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl);
cfdda9d7 SW	298
	299	return 0;
	300	}
	301
1fb7f897	302	static int c4iw_query_port(struct ib_device *ibdev, u32 port,
cfdda9d7 SW	303	struct ib_port_attr *props)
cfdda9d7 SW	304	{
5212c3fd	305	int ret = 0;
548ddb19	306	pr_debug("ibdev %p\n", ibdev);
5212c3fd PBT	307	ret = ib_get_eth_speed(ibdev, port, &props->active_speed,
5212c3fd PBT	308	&props->active_width);
cfdda9d7	309
cfdda9d7 SW	310	props->port_cap_flags =
	311	IB_PORT_CM_SUP \|
	312	IB_PORT_SNMP_TUNNEL_SUP \|
	313	IB_PORT_REINIT_SUP \|
	314	IB_PORT_DEVICE_MGMT_SUP \|
	315	IB_PORT_VENDOR_CLASS_SUP \| IB_PORT_BOOT_MGMT_SUP;
	316	props->gid_tbl_len = 1;
cfdda9d7 SW	317	props->max_msg_sz = -1;
cfdda9d7 SW	318
5212c3fd	319	return ret;
cfdda9d7 SW	320	}
cfdda9d7 SW	321
508a523f PP	322	static ssize_t hw_rev_show(struct device *dev,
508a523f PP	323	struct device_attribute attr, char buf)
cfdda9d7	324	{
54747231 PP	325	struct c4iw_dev *c4iw_dev =
	326	rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev);
	327
548ddb19	328	pr_debug("dev 0x%p\n", dev);
1c7fd726 JP	329	return sysfs_emit(
	330	buf, "%d\n",
	331	CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type));
cfdda9d7	332	}
508a523f	333	static DEVICE_ATTR_RO(hw_rev);
cfdda9d7	334
508a523f PP	335	static ssize_t hca_type_show(struct device *dev,
508a523f PP	336	struct device_attribute attr, char buf)
cfdda9d7	337	{
54747231 PP	338	struct c4iw_dev *c4iw_dev =
54747231 PP	339	rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev);
cfdda9d7 SW	340	struct ethtool_drvinfo info;
	341	struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0];
	342
548ddb19	343	pr_debug("dev 0x%p\n", dev);
cfdda9d7	344	lldev->ethtool_ops->get_drvinfo(lldev, &info);
1c7fd726	345	return sysfs_emit(buf, "%s\n", info.driver);
cfdda9d7	346	}
508a523f	347	static DEVICE_ATTR_RO(hca_type);
cfdda9d7	348
508a523f PP	349	static ssize_t board_id_show(struct device dev, struct device_attribute attr,
508a523f PP	350	char *buf)
cfdda9d7	351	{
54747231 PP	352	struct c4iw_dev *c4iw_dev =
	353	rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev);
	354
548ddb19	355	pr_debug("dev 0x%p\n", dev);
1c7fd726 JP	356	return sysfs_emit(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor,
1c7fd726 JP	357	c4iw_dev->rdev.lldi.pdev->device);
cfdda9d7	358	}
508a523f	359	static DEVICE_ATTR_RO(board_id);
cfdda9d7	360
b40f4757 CL	361	enum counters {
	362	IP4INSEGS,
	363	IP4OUTSEGS,
	364	IP4RETRANSSEGS,
	365	IP4OUTRSTS,
	366	IP6INSEGS,
	367	IP6OUTSEGS,
	368	IP6RETRANSSEGS,
	369	IP6OUTRSTS,
	370	NR_COUNTERS
	371	};
	372
13f30b0f AL	373	static const struct rdma_stat_desc cxgb4_descs[] = {
	374	[IP4INSEGS].name = "ip4InSegs",
	375	[IP4OUTSEGS].name = "ip4OutSegs",
	376	[IP4RETRANSSEGS].name = "ip4RetransSegs",
	377	[IP4OUTRSTS].name = "ip4OutRsts",
	378	[IP6INSEGS].name = "ip6InSegs",
	379	[IP6OUTSEGS].name = "ip6OutSegs",
	380	[IP6RETRANSSEGS].name = "ip6RetransSegs",
	381	[IP6OUTRSTS].name = "ip6OutRsts"
b40f4757 CL	382	};
b40f4757 CL	383
4b5f4d3f	384	static struct rdma_hw_stats c4iw_alloc_device_stats(struct ib_device ibdev)
b40f4757	385	{
13f30b0f	386	BUILD_BUG_ON(ARRAY_SIZE(cxgb4_descs) != NR_COUNTERS);
b40f4757	387
4b5f4d3f	388	/* FIXME: these look like port stats */
13f30b0f	389	return rdma_alloc_hw_stats_struct(cxgb4_descs, NR_COUNTERS,
b40f4757 CL	390	RDMA_HW_STATS_DEFAULT_LIFESPAN);
	391	}
	392
cfdda9d7	393	static int c4iw_get_mib(struct ib_device *ibdev,
b40f4757	394	struct rdma_hw_stats *stats,
1fb7f897	395	u32 port, int index)
cfdda9d7	396	{
de5dd81b SW	397	struct tp_tcp_stats v4, v6;
	398	struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev);
	399
	400	cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6);
b40f4757 CL	401	stats->value[IP4INSEGS] = v4.tcp_in_segs;
	402	stats->value[IP4OUTSEGS] = v4.tcp_out_segs;
	403	stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs;
	404	stats->value[IP4OUTRSTS] = v4.tcp_out_rsts;
	405	stats->value[IP6INSEGS] = v6.tcp_in_segs;
	406	stats->value[IP6OUTSEGS] = v6.tcp_out_segs;
	407	stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs;
	408	stats->value[IP6OUTRSTS] = v6.tcp_out_rsts;
	409
	410	return stats->num_counters;
cfdda9d7 SW	411	}
cfdda9d7 SW	412
508a523f PP	413	static struct attribute *c4iw_class_attributes[] = {
	414	&dev_attr_hw_rev.attr,
	415	&dev_attr_hca_type.attr,
	416	&dev_attr_board_id.attr,
	417	NULL
	418	};
cfdda9d7	419
508a523f PP	420	static const struct attribute_group c4iw_attr_group = {
508a523f PP	421	.attrs = c4iw_class_attributes,
cfdda9d7 SW	422	};
cfdda9d7 SW	423
1fb7f897	424	static int c4iw_port_immutable(struct ib_device *ibdev, u32 port_num,
7738613e IW	425	struct ib_port_immutable *immutable)
	426	{
	427	struct ib_port_attr attr;
	428	int err;
	429
c4550c63 OG	430	immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
	431
	432	err = ib_query_port(ibdev, port_num, &attr);
7738613e IW	433	if (err)
	434	return err;
	435
7738613e IW	436	immutable->gid_tbl_len = attr.gid_tbl_len;
	437
	438	return 0;
	439	}
	440
9abb0d1b	441	static void get_dev_fw_str(struct ib_device dev, char str)
ce192243 IW	442	{
	443	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
	444	ibdev);
548ddb19	445	pr_debug("dev 0x%p\n", dev);
ce192243	446
9abb0d1b	447	snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u.%u",
ce192243 IW	448	FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers),
	449	FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers),
	450	FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers),
	451	FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
	452	}
	453
dad3b05d	454	static const struct ib_device_ops c4iw_dev_ops = {
7a154142	455	.owner = THIS_MODULE,
b9560a41	456	.driver_id = RDMA_DRIVER_CXGB4,
72c6ec18	457	.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION,
b9560a41	458
4b5f4d3f	459	.alloc_hw_device_stats = c4iw_alloc_device_stats,
dad3b05d	460	.alloc_mr = c4iw_alloc_mr,
dad3b05d KH	461	.alloc_pd = c4iw_allocate_pd,
	462	.alloc_ucontext = c4iw_alloc_ucontext,
	463	.create_cq = c4iw_create_cq,
	464	.create_qp = c4iw_create_qp,
	465	.create_srq = c4iw_create_srq,
dad3b05d KH	466	.dealloc_pd = c4iw_deallocate_pd,
	467	.dealloc_ucontext = c4iw_dealloc_ucontext,
	468	.dereg_mr = c4iw_dereg_mr,
	469	.destroy_cq = c4iw_destroy_cq,
	470	.destroy_qp = c4iw_destroy_qp,
	471	.destroy_srq = c4iw_destroy_srq,
915e4af5	472	.device_group = &c4iw_attr_group,
9e2a187a	473	.fill_res_cq_entry = c4iw_fill_res_cq_entry,
211cd945	474	.fill_res_cm_id_entry = c4iw_fill_res_cm_id_entry,
f4434529	475	.fill_res_mr_entry = c4iw_fill_res_mr_entry,
89f8c6f1	476	.fill_res_qp_entry = c4iw_fill_res_qp_entry,
dad3b05d KH	477	.get_dev_fw_str = get_dev_fw_str,
	478	.get_dma_mr = c4iw_get_dma_mr,
	479	.get_hw_stats = c4iw_get_mib,
dad3b05d	480	.get_port_immutable = c4iw_port_immutable,
dd05cb82 KH	481	.iw_accept = c4iw_accept_cr,
	482	.iw_add_ref = c4iw_qp_add_ref,
	483	.iw_connect = c4iw_connect,
	484	.iw_create_listen = c4iw_create_listen,
	485	.iw_destroy_listen = c4iw_destroy_listen,
	486	.iw_get_qp = c4iw_get_qp,
	487	.iw_reject = c4iw_reject_cr,
	488	.iw_rem_ref = c4iw_qp_rem_ref,
dad3b05d KH	489	.map_mr_sg = c4iw_map_mr_sg,
	490	.mmap = c4iw_mmap,
	491	.modify_qp = c4iw_ib_modify_qp,
	492	.modify_srq = c4iw_modify_srq,
	493	.poll_cq = c4iw_poll_cq,
	494	.post_recv = c4iw_post_receive,
	495	.post_send = c4iw_post_send,
	496	.post_srq_recv = c4iw_post_srq_recv,
	497	.query_device = c4iw_query_device,
	498	.query_gid = c4iw_query_gid,
dad3b05d KH	499	.query_port = c4iw_query_port,
	500	.query_qp = c4iw_ib_query_qp,
	501	.reg_user_mr = c4iw_reg_user_mr,
	502	.req_notify_cq = c4iw_arm_cq,
d18bb3e1	503
e39afe3d	504	INIT_RDMA_OBJ_SIZE(ib_cq, c4iw_cq, ibcq),
d18bb3e1 LR	505	INIT_RDMA_OBJ_SIZE(ib_mw, c4iw_mw, ibmw),
d18bb3e1 LR	506	INIT_RDMA_OBJ_SIZE(ib_pd, c4iw_pd, ibpd),
514aee66	507	INIT_RDMA_OBJ_SIZE(ib_qp, c4iw_qp, ibqp),
68e326de	508	INIT_RDMA_OBJ_SIZE(ib_srq, c4iw_srq, ibsrq),
a2a074ef	509	INIT_RDMA_OBJ_SIZE(ib_ucontext, c4iw_ucontext, ibucontext),
dad3b05d KH	510	};
dad3b05d KH	511
ab7efbe2 SW	512	static int set_netdevs(struct ib_device ib_dev, struct c4iw_rdev rdev)
	513	{
	514	int ret;
	515	int i;
	516
	517	for (i = 0; i < rdev->lldi.nports; i++) {
	518	ret = ib_device_set_netdev(ib_dev, rdev->lldi.ports[i],
	519	i + 1);
	520	if (ret)
	521	return ret;
	522	}
	523	return 0;
	524	}
	525
1c8f1da5	526	void c4iw_register_device(struct work_struct *work)
cfdda9d7 SW	527	{
cfdda9d7 SW	528	int ret;
1c8f1da5 BP	529	struct uld_ctx *ctx = container_of(work, struct uld_ctx, reg_work);
1c8f1da5 BP	530	struct c4iw_dev *dev = ctx->dev;
cfdda9d7	531
548ddb19	532	pr_debug("c4iw_dev %p\n", dev);
46c87b42 KH	533	addrconf_addr_eui48((u8 *)&dev->ibdev.node_guid,
46c87b42 KH	534	dev->rdev.lldi.ports[0]->dev_addr);
cfdda9d7	535	dev->ibdev.local_dma_lkey = 0;
cfdda9d7	536	dev->ibdev.node_type = RDMA_NODE_RNIC;
bd99fdea	537	BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX);
cfdda9d7 SW	538	memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC));
cfdda9d7 SW	539	dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
cf38be6d	540	dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq;
d08868a1	541	dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev;
cfdda9d7	542
dd05cb82 KH	543	memcpy(dev->ibdev.iw_ifname, dev->rdev.lldi.ports[0]->name,
dd05cb82 KH	544	sizeof(dev->ibdev.iw_ifname));
cfdda9d7	545
dad3b05d	546	ib_set_device_ops(&dev->ibdev, &c4iw_dev_ops);
ab7efbe2 SW	547	ret = set_netdevs(&dev->ibdev, &dev->rdev);
ab7efbe2 SW	548	if (ret)
dd05cb82	549	goto err_dealloc_ctx;
e0477b34 JG	550	dma_set_max_seg_size(&dev->rdev.lldi.pdev->dev, UINT_MAX);
	551	ret = ib_register_device(&dev->ibdev, "cxgb4_%d",
	552	&dev->rdev.lldi.pdev->dev);
cfdda9d7	553	if (ret)
dd05cb82	554	goto err_dealloc_ctx;
1c8f1da5	555	return;
508a523f	556
1c8f1da5 BP	557	err_dealloc_ctx:
	558	pr_err("%s - Failed registering iwarp device: %d\n",
	559	pci_name(ctx->lldi.pdev), ret);
	560	c4iw_dealloc(ctx);
	561	return;
cfdda9d7 SW	562	}
	563
	564	void c4iw_unregister_device(struct c4iw_dev *dev)
	565	{
548ddb19	566	pr_debug("c4iw_dev %p\n", dev);
cfdda9d7	567	ib_unregister_device(&dev->ibdev);
cfdda9d7 SW	568	return;
cfdda9d7 SW	569	}