Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull inifiniband/rdma updates from Doug Ledford:
 "This is a fairly sizeable set of changes.  I've put them through a
  decent amount of testing prior to sending the pull request due to
  that.

  There are still a few fixups that I know are coming, but I wanted to
  go ahead and get the big, sizable chunk into your hands sooner rather
  than waiting for those last few fixups.

  Of note is the fact that this creates what is intended to be a
  temporary area in the drivers/staging tree specifically for some
  cleanups and additions that are coming for the RDMA stack.  We
  deprecated two drivers (ipath and amso1100) and are waiting to hear
  back if we can deprecate another one (ehca).  We also put Intel's new
  hfi1 driver into this area because it needs to be refactored and a
  transfer library created out of the factored out code, and then it and
  the qib driver and the soft-roce driver should all be modified to use
  that library.

  I expect drivers/staging/rdma to be around for three or four kernel
  releases and then to go away as all of the work is completed and final
  deletions of deprecated drivers are done.

  Summary of changes for 4.3:

   - Create drivers/staging/rdma
   - Move amso1100 driver to staging/rdma and schedule for deletion
   - Move ipath driver to staging/rdma and schedule for deletion
   - Add hfi1 driver to staging/rdma and set TODO for move to regular
     tree
   - Initial support for namespaces to be used on RDMA devices
   - Add RoCE GID table handling to the RDMA core caching code
   - Infrastructure to support handling of devices with differing read
     and write scatter gather capabilities
   - Various iSER updates
   - Kill off unsafe usage of global mr registrations
   - Update SRP driver
   - Misc  mlx4 driver updates
   - Support for the mr_alloc verb
   - Support for a netlink interface between kernel and user space cache
     daemon to speed path record queries and route resolution
   - Ininitial support for safe hot removal of verbs devices"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (136 commits)
  IB/ipoib: Suppress warning for send only join failures
  IB/ipoib: Clean up send-only multicast joins
  IB/srp: Fix possible protection fault
  IB/core: Move SM class defines from ib_mad.h to ib_smi.h
  IB/core: Remove unnecessary defines from ib_mad.h
  IB/hfi1: Add PSM2 user space header to header_install
  IB/hfi1: Add CSRs for CONFIG_SDMA_VERBOSITY
  mlx5: Fix incorrect wc pkey_index assignment for GSI messages
  IB/mlx5: avoid destroying a NULL mr in reg_user_mr error flow
  IB/uverbs: reject invalid or unknown opcodes
  IB/cxgb4: Fix if statement in pick_local_ip6adddrs
  IB/sa: Fix rdma netlink message flags
  IB/ucma: HW Device hot-removal support
  IB/mlx4_ib: Disassociate support
  IB/uverbs: Enable device removal when there are active user space applications
  IB/uverbs: Explicitly pass ib_dev to uverbs commands
  IB/uverbs: Fix race between ib_uverbs_open and remove_one
  IB/uverbs: Fix reference counting usage of event files
  IB/core: Make ib_dealloc_pd return void
  IB/srp: Create an insecure all physical rkey only if needed
  ...

1 files changed, 5 insertions, 231 deletions

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index b119a3413a15..87aa55df7c82 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -67,8 +67,6 @@ static LIST_HEAD(ocrdma_dev_list);
 static DEFINE_SPINLOCK(ocrdma_devlist_lock);
 static DEFINE_IDR(ocrdma_dev_id);
 
-static union ib_gid ocrdma_zero_sgid;
-
 void ocrdma_get_guid(struct ocrdma_dev *dev, u8 *guid)
 {
 	u8 mac_addr[6];
@@ -83,135 +81,6 @@ void ocrdma_get_guid(struct ocrdma_dev *dev, u8 *guid)
 	guid[6] = mac_addr[4];
 	guid[7] = mac_addr[5];
 }
-
-static bool ocrdma_add_sgid(struct ocrdma_dev *dev, union ib_gid *new_sgid)
-{
-	int i;
-	unsigned long flags;
-
-	memset(&ocrdma_zero_sgid, 0, sizeof(union ib_gid));
-
-
-	spin_lock_irqsave(&dev->sgid_lock, flags);
-	for (i = 0; i < OCRDMA_MAX_SGID; i++) {
-		if (!memcmp(&dev->sgid_tbl[i], &ocrdma_zero_sgid,
-			    sizeof(union ib_gid))) {
-			/* found free entry */
-			memcpy(&dev->sgid_tbl[i], new_sgid,
-			       sizeof(union ib_gid));
-			spin_unlock_irqrestore(&dev->sgid_lock, flags);
-			return true;
-		} else if (!memcmp(&dev->sgid_tbl[i], new_sgid,
-				   sizeof(union ib_gid))) {
-			/* entry already present, no addition is required. */
-			spin_unlock_irqrestore(&dev->sgid_lock, flags);
-			return false;
-		}
-	}
-	spin_unlock_irqrestore(&dev->sgid_lock, flags);
-	return false;
-}
-
-static bool ocrdma_del_sgid(struct ocrdma_dev *dev, union ib_gid *sgid)
-{
-	int found = false;
-	int i;
-	unsigned long flags;
-
-
-	spin_lock_irqsave(&dev->sgid_lock, flags);
-	/* first is default sgid, which cannot be deleted. */
-	for (i = 1; i < OCRDMA_MAX_SGID; i++) {
-		if (!memcmp(&dev->sgid_tbl[i], sgid, sizeof(union ib_gid))) {
-			/* found matching entry */
-			memset(&dev->sgid_tbl[i], 0, sizeof(union ib_gid));
-			found = true;
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&dev->sgid_lock, flags);
-	return found;
-}
-
-static int ocrdma_addr_event(unsigned long event, struct net_device *netdev,
-			     union ib_gid *gid)
-{
-	struct ib_event gid_event;
-	struct ocrdma_dev *dev;
-	bool found = false;
-	bool updated = false;
-	bool is_vlan = false;
-
-	is_vlan = netdev->priv_flags & IFF_802_1Q_VLAN;
-	if (is_vlan)
-		netdev = rdma_vlan_dev_real_dev(netdev);
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(dev, &ocrdma_dev_list, entry) {
-		if (dev->nic_info.netdev == netdev) {
-			found = true;
-			break;
-		}
-	}
-	rcu_read_unlock();
-
-	if (!found)
-		return NOTIFY_DONE;
-
-	mutex_lock(&dev->dev_lock);
-	switch (event) {
-	case NETDEV_UP:
-		updated = ocrdma_add_sgid(dev, gid);
-		break;
-	case NETDEV_DOWN:
-		updated = ocrdma_del_sgid(dev, gid);
-		break;
-	default:
-		break;
-	}
-	if (updated) {
-		/* GID table updated, notify the consumers about it */
-		gid_event.device = &dev->ibdev;
-		gid_event.element.port_num = 1;
-		gid_event.event = IB_EVENT_GID_CHANGE;
-		ib_dispatch_event(&gid_event);
-	}
-	mutex_unlock(&dev->dev_lock);
-	return NOTIFY_OK;
-}
-
-static int ocrdma_inetaddr_event(struct notifier_block *notifier,
-				  unsigned long event, void *ptr)
-{
-	struct in_ifaddr *ifa = ptr;
-	union ib_gid gid;
-	struct net_device *netdev = ifa->ifa_dev->dev;
-
-	ipv6_addr_set_v4mapped(ifa->ifa_address, (struct in6_addr *)&gid);
-	return ocrdma_addr_event(event, netdev, &gid);
-}
-
-static struct notifier_block ocrdma_inetaddr_notifier = {
-	.notifier_call = ocrdma_inetaddr_event
-};
-
-#if IS_ENABLED(CONFIG_IPV6)
-
-static int ocrdma_inet6addr_event(struct notifier_block *notifier,
-				  unsigned long event, void *ptr)
-{
-	struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
-	union  ib_gid *gid = (union ib_gid *)&ifa->addr;
-	struct net_device *netdev = ifa->idev->dev;
-	return ocrdma_addr_event(event, netdev, gid);
-}
-
-static struct notifier_block ocrdma_inet6addr_notifier = {
-	.notifier_call = ocrdma_inet6addr_event
-};
-
-#endif /* IPV6 and VLAN */
-
 static enum rdma_link_layer ocrdma_link_layer(struct ib_device *device,
 					      u8 port_num)
 {
@@ -280,6 +149,9 @@ static int ocrdma_register_device(struct ocrdma_dev *dev)
 	dev->ibdev.query_port = ocrdma_query_port;
 	dev->ibdev.modify_port = ocrdma_modify_port;
 	dev->ibdev.query_gid = ocrdma_query_gid;
+	dev->ibdev.get_netdev = ocrdma_get_netdev;
+	dev->ibdev.add_gid = ocrdma_add_gid;
+	dev->ibdev.del_gid = ocrdma_del_gid;
 	dev->ibdev.get_link_layer = ocrdma_link_layer;
 	dev->ibdev.alloc_pd = ocrdma_alloc_pd;
 	dev->ibdev.dealloc_pd = ocrdma_dealloc_pd;
@@ -309,7 +181,7 @@ static int ocrdma_register_device(struct ocrdma_dev *dev)
 	dev->ibdev.dereg_mr = ocrdma_dereg_mr;
 	dev->ibdev.reg_user_mr = ocrdma_reg_user_mr;
 
-	dev->ibdev.alloc_fast_reg_mr = ocrdma_alloc_frmr;
+	dev->ibdev.alloc_mr = ocrdma_alloc_mr;
 	dev->ibdev.alloc_fast_reg_page_list = ocrdma_alloc_frmr_page_list;
 	dev->ibdev.free_fast_reg_page_list = ocrdma_free_frmr_page_list;
 
@@ -342,12 +214,6 @@ static int ocrdma_register_device(struct ocrdma_dev *dev)
 static int ocrdma_alloc_resources(struct ocrdma_dev *dev)
 {
 	mutex_init(&dev->dev_lock);
-	dev->sgid_tbl = kzalloc(sizeof(union ib_gid) *
-				OCRDMA_MAX_SGID, GFP_KERNEL);
-	if (!dev->sgid_tbl)
-		goto alloc_err;
-	spin_lock_init(&dev->sgid_lock);
-
 	dev->cq_tbl = kzalloc(sizeof(struct ocrdma_cq *) *
 			      OCRDMA_MAX_CQ, GFP_KERNEL);
 	if (!dev->cq_tbl)
@@ -379,7 +245,6 @@ static void ocrdma_free_resources(struct ocrdma_dev *dev)
 	kfree(dev->stag_arr);
 	kfree(dev->qp_tbl);
 	kfree(dev->cq_tbl);
-	kfree(dev->sgid_tbl);
 }
 
 /* OCRDMA sysfs interface */
@@ -425,68 +290,6 @@ static void ocrdma_remove_sysfiles(struct ocrdma_dev *dev)
 		device_remove_file(&dev->ibdev.dev, ocrdma_attributes[i]);
 }
 
-static void ocrdma_add_default_sgid(struct ocrdma_dev *dev)
-{
-	/* GID Index 0 - Invariant manufacturer-assigned EUI-64 */
-	union ib_gid *sgid = &dev->sgid_tbl[0];
-
-	sgid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
-	ocrdma_get_guid(dev, &sgid->raw[8]);
-}
-
-static void ocrdma_init_ipv4_gids(struct ocrdma_dev *dev,
-				  struct net_device *net)
-{
-	struct in_device *in_dev;
-	union ib_gid gid;
-	in_dev = in_dev_get(net);
-	if (in_dev) {
-		for_ifa(in_dev) {
-			ipv6_addr_set_v4mapped(ifa->ifa_address,
-					       (struct in6_addr *)&gid);
-			ocrdma_add_sgid(dev, &gid);
-		}
-		endfor_ifa(in_dev);
-		in_dev_put(in_dev);
-	}
-}
-
-static void ocrdma_init_ipv6_gids(struct ocrdma_dev *dev,
-				  struct net_device *net)
-{
-#if IS_ENABLED(CONFIG_IPV6)
-	struct inet6_dev *in6_dev;
-	union ib_gid  *pgid;
-	struct inet6_ifaddr *ifp;
-	in6_dev = in6_dev_get(net);
-	if (in6_dev) {
-		read_lock_bh(&in6_dev->lock);
-		list_for_each_entry(ifp, &in6_dev->addr_list, if_list) {
-			pgid = (union ib_gid *)&ifp->addr;
-			ocrdma_add_sgid(dev, pgid);
-		}
-		read_unlock_bh(&in6_dev->lock);
-		in6_dev_put(in6_dev);
-	}
-#endif
-}
-
-static void ocrdma_init_gid_table(struct ocrdma_dev *dev)
-{
-	struct  net_device *net_dev;
-
-	for_each_netdev(&init_net, net_dev) {
-		struct net_device *real_dev = rdma_vlan_dev_real_dev(net_dev) ?
-				rdma_vlan_dev_real_dev(net_dev) : net_dev;
-
-		if (real_dev == dev->nic_info.netdev) {
-			ocrdma_add_default_sgid(dev);
-			ocrdma_init_ipv4_gids(dev, net_dev);
-			ocrdma_init_ipv6_gids(dev, net_dev);
-		}
-	}
-}
-
 static struct ocrdma_dev *ocrdma_add(struct be_dev_info *dev_info)
 {
 	int status = 0, i;
@@ -515,7 +318,6 @@ static struct ocrdma_dev *ocrdma_add(struct be_dev_info *dev_info)
 		goto alloc_err;
 
 	ocrdma_init_service_level(dev);
-	ocrdma_init_gid_table(dev);
 	status = ocrdma_register_device(dev);
 	if (status)
 		goto alloc_err;
@@ -662,34 +464,12 @@ static struct ocrdma_driver ocrdma_drv = {
 	.be_abi_version		= OCRDMA_BE_ROCE_ABI_VERSION,
 };
 
-static void ocrdma_unregister_inet6addr_notifier(void)
-{
-#if IS_ENABLED(CONFIG_IPV6)
-	unregister_inet6addr_notifier(&ocrdma_inet6addr_notifier);
-#endif
-}
-
-static void ocrdma_unregister_inetaddr_notifier(void)
-{
-	unregister_inetaddr_notifier(&ocrdma_inetaddr_notifier);
-}
-
 static int __init ocrdma_init_module(void)
 {
 	int status;
 
 	ocrdma_init_debugfs();
 
-	status = register_inetaddr_notifier(&ocrdma_inetaddr_notifier);
-	if (status)
-		return status;
-
-#if IS_ENABLED(CONFIG_IPV6)
-	status = register_inet6addr_notifier(&ocrdma_inet6addr_notifier);
-	if (status)
-		goto err_notifier6;
-#endif
-
 	status = be_roce_register_driver(&ocrdma_drv);
 	if (status)
 		goto err_be_reg;
@@ -697,19 +477,13 @@ static int __init ocrdma_init_module(void)
 	return 0;
 
 err_be_reg:
-#if IS_ENABLED(CONFIG_IPV6)
-	ocrdma_unregister_inet6addr_notifier();
-err_notifier6:
-#endif
-	ocrdma_unregister_inetaddr_notifier();
+
 	return status;
 }
 
 static void __exit ocrdma_exit_module(void)
 {
 	be_roce_unregister_driver(&ocrdma_drv);
-	ocrdma_unregister_inet6addr_notifier();
-	ocrdma_unregister_inetaddr_notifier();
 	ocrdma_rem_debugfs();
 	idr_destroy(&ocrdma_dev_id);
 }