1 files changed, 340 insertions, 315 deletions

diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index 7e94c9a656a1..e059f92d90fd 100644
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -41,6 +41,7 @@
 #include <linux/ethtool.h>
 #include <linux/rtnetlink.h>
 #include <linux/inetdevice.h>
+#include <net/addrconf.h>
 #include <linux/io.h>
 
 #include <asm/irq.h>
@@ -58,63 +59,70 @@ 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)
+static void c4iw_dealloc_ucontext(struct ib_ucontext *context)
 {
-	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_dev *rhp;
 	struct c4iw_mm_entry *mm, *tmp;
 
-	PDBG("%s context %p\n", __func__, context);
+	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);
-	kfree(ucontext);
-	return 0;
 }
 
-static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev,
-					       struct ib_udata *udata)
+static int c4iw_alloc_ucontext(struct ib_ucontext *ucontext,
+			       struct ib_udata *udata)
 {
-	struct c4iw_ucontext *context;
+	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;
 
-	PDBG("%s ibdev %p\n", __func__, ibdev);
-	context = kzalloc(sizeof(*context), GFP_KERNEL);
-	if (!context)
-		return ERR_PTR(-ENOMEM);
+	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);
-	return &context->ibucontext;
+
+	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)
@@ -126,9 +134,14 @@ static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 	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;
 
-	PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
-	     key, len);
+	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;
@@ -140,92 +153,79 @@ static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 	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);
 
-	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);
+	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, 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);
-		}
+					 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);
-	} else {
-
-		/*
-		 * Map WQ or CQ contig dma memory...
-		 */
-		ret = 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)
+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;
-	PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
+	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);
-	kfree(php);
 	return 0;
 }
 
-static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev,
-				      struct ib_ucontext *context,
-				      struct ib_udata *udata)
+static int c4iw_allocate_pd(struct ib_pd *pd, struct ib_udata *udata)
 {
-	struct c4iw_pd *php;
+	struct c4iw_pd *php = to_c4iw_pd(pd);
+	struct ib_device *ibdev = pd->device;
 	u32 pdid;
 	struct c4iw_dev *rhp;
 
-	PDBG("%s ibdev %p\n", __func__, ibdev);
+	pr_debug("ibdev %p\n", 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);
-	}
+		return -EINVAL;
+
 	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);
+	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);
@@ -233,103 +233,79 @@ static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev,
 	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;
+	pr_debug("pdid 0x%0x ptr 0x%p\n", pdid, php);
 	return 0;
 }
 
-static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index,
+static int c4iw_query_gid(struct ib_device *ibdev, u32 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);
+	pr_debug("ibdev %p, port %u, index %d, gid %p\n",
+		 ibdev, port, index, gid);
+	if (!port)
+		return -EINVAL;
 	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)
+static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
+			     struct ib_udata *uhw)
 {
 
 	struct c4iw_dev *dev;
-	PDBG("%s ibdev %p\n", __func__, ibdev);
+
+	pr_debug("ibdev %p\n", ibdev);
+
+	if (uhw->inlen || uhw->outlen)
+		return -EINVAL;
 
 	dev = to_c4iw_dev(ibdev);
-	memset(props, 0, sizeof *props);
-	memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
+	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 = dev->device_cap_flags;
+	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 = T4_MAX_NUM_QP;
-	props->max_qp_wr = T4_MAX_QP_DEPTH;
-	props->max_sge = T4_MAX_RECV_SGE;
+	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_qp_rd_atom = c4iw_max_read_depth;
-	props->max_qp_init_rd_atom = c4iw_max_read_depth;
-	props->max_cq = T4_MAX_NUM_CQ;
-	props->max_cqe = T4_MAX_CQ_DEPTH;
+	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;
+	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, u8 port,
+static int c4iw_query_port(struct ib_device *ibdev, u32 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;
-	}
+	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 |
@@ -338,207 +314,256 @@ static int c4iw_query_port(struct ib_device *ibdev, u8 port,
 	    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;
+	return ret;
 }
 
-static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
-			char *buf)
+static ssize_t hw_rev_show(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));
-}
+	struct c4iw_dev *c4iw_dev =
+			rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev);
 
-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_GET(c4iw_dev->rdev.lldi.fw_vers),
-			FW_HDR_FW_VER_MINOR_GET(c4iw_dev->rdev.lldi.fw_vers),
-			FW_HDR_FW_VER_MICRO_GET(c4iw_dev->rdev.lldi.fw_vers),
-			FW_HDR_FW_VER_BUILD_GET(c4iw_dev->rdev.lldi.fw_vers));
+	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 show_hca(struct device *dev, struct device_attribute *attr,
-			char *buf)
+static ssize_t hca_type_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
 {
-	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
-						 ibdev.dev);
+	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];
 
-	PDBG("%s dev 0x%p\n", __func__, dev);
+	pr_debug("dev 0x%p\n", dev);
 	lldev->ethtool_ops->get_drvinfo(lldev, &info);
-	return sprintf(buf, "%s\n", info.driver);
+	return sysfs_emit(buf, "%s\n", info.driver);
 }
+static DEVICE_ATTR_RO(hca_type);
 
-static ssize_t show_board(struct device *dev, struct device_attribute *attr,
-			  char *buf)
+static ssize_t board_id_show(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);
+	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,
-			union rdma_protocol_stats *stats)
+			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);
-	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;
+	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 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 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 struct device_attribute *c4iw_class_attributes[] = {
-	&dev_attr_hw_rev,
-	&dev_attr_fw_ver,
-	&dev_attr_hca_type,
-	&dev_attr_board_id,
+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),
 };
 
-int c4iw_register_device(struct c4iw_dev *dev)
+static int set_netdevs(struct ib_device *ib_dev, struct c4iw_rdev *rdev)
 {
 	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;
+	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.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;
+	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 = 1;
-	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_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);
+	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 bail1;
+		goto err_dealloc_ctx;
+	return;
 
-	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;
+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)
 {
-	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]);
+	pr_debug("c4iw_dev %p\n", dev);
 	ib_unregister_device(&dev->ibdev);
-	kfree(dev->ibdev.iwcm);
 	return;
 }