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

Pull rdma updates from Jason Gunthorpe:
 "A smaller set of patches, nothing stands out as being particularly
  major this cycle. The biggest item would be the new HIP09 HW support
  from HNS, otherwise it was pretty quiet for new work here:

   - Driver bug fixes and updates: bnxt_re, cxgb4, rxe, hns, i40iw,
     cxgb4, mlx4 and mlx5

   - Bug fixes and polishing for the new rts ULP

   - Cleanup of uverbs checking for allowed driver operations

   - Use sysfs_emit all over the place

   - Lots of bug fixes and clarity improvements for hns

   - hip09 support for hns

   - NDR and 50/100Gb signaling rates

   - Remove dma_virt_ops and go back to using the IB DMA wrappers

   - mlx5 optimizations for contiguous DMA regions"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (147 commits)
  RDMA/cma: Don't overwrite sgid_attr after device is released
  RDMA/mlx5: Fix MR cache memory leak
  RDMA/rxe: Use acquire/release for memory ordering
  RDMA/hns: Simplify AEQE process for different types of queue
  RDMA/hns: Fix inaccurate prints
  RDMA/hns: Fix incorrect symbol types
  RDMA/hns: Clear redundant variable initialization
  RDMA/hns: Fix coding style issues
  RDMA/hns: Remove unnecessary access right set during INIT2INIT
  RDMA/hns: WARN_ON if get a reserved sl from users
  RDMA/hns: Avoid filling sl in high 3 bits of vlan_id
  RDMA/hns: Do shift on traffic class when using RoCEv2
  RDMA/hns: Normalization the judgment of some features
  RDMA/hns: Limit the length of data copied between kernel and userspace
  RDMA/mlx4: Remove bogus dev_base_lock usage
  RDMA/uverbs: Fix incorrect variable type
  RDMA/core: Do not indicate device ready when device enablement fails
  RDMA/core: Clean up cq pool mechanism
  RDMA/core: Update kernel documentation for ib_create_named_qp()
  MAINTAINERS: SOFT-ROCE: Change Zhu Yanjun's email address
  ...

1 files changed, 66 insertions, 26 deletions

diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index a3b1fc84cdca..e96f979e6d52 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -284,6 +284,7 @@ static void ib_device_check_mandatory(struct ib_device *device)
 		IB_MANDATORY_FUNC(poll_cq),
 		IB_MANDATORY_FUNC(req_notify_cq),
 		IB_MANDATORY_FUNC(get_dma_mr),
+		IB_MANDATORY_FUNC(reg_user_mr),
 		IB_MANDATORY_FUNC(dereg_mr),
 		IB_MANDATORY_FUNC(get_port_immutable)
 	};
@@ -569,6 +570,7 @@ static void rdma_init_coredev(struct ib_core_device *coredev,
 struct ib_device *_ib_alloc_device(size_t size)
 {
 	struct ib_device *device;
+	unsigned int i;
 
 	if (WARN_ON(size < sizeof(struct ib_device)))
 		return NULL;
@@ -600,6 +602,41 @@ struct ib_device *_ib_alloc_device(size_t size)
 	init_completion(&device->unreg_completion);
 	INIT_WORK(&device->unregistration_work, ib_unregister_work);
 
+	spin_lock_init(&device->cq_pools_lock);
+	for (i = 0; i < ARRAY_SIZE(device->cq_pools); i++)
+		INIT_LIST_HEAD(&device->cq_pools[i]);
+
+	device->uverbs_cmd_mask =
+		BIT_ULL(IB_USER_VERBS_CMD_ALLOC_MW) |
+		BIT_ULL(IB_USER_VERBS_CMD_ALLOC_PD) |
+		BIT_ULL(IB_USER_VERBS_CMD_ATTACH_MCAST) |
+		BIT_ULL(IB_USER_VERBS_CMD_CLOSE_XRCD) |
+		BIT_ULL(IB_USER_VERBS_CMD_CREATE_AH) |
+		BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
+		BIT_ULL(IB_USER_VERBS_CMD_CREATE_CQ) |
+		BIT_ULL(IB_USER_VERBS_CMD_CREATE_QP) |
+		BIT_ULL(IB_USER_VERBS_CMD_CREATE_SRQ) |
+		BIT_ULL(IB_USER_VERBS_CMD_CREATE_XSRQ) |
+		BIT_ULL(IB_USER_VERBS_CMD_DEALLOC_MW) |
+		BIT_ULL(IB_USER_VERBS_CMD_DEALLOC_PD) |
+		BIT_ULL(IB_USER_VERBS_CMD_DEREG_MR) |
+		BIT_ULL(IB_USER_VERBS_CMD_DESTROY_AH) |
+		BIT_ULL(IB_USER_VERBS_CMD_DESTROY_CQ) |
+		BIT_ULL(IB_USER_VERBS_CMD_DESTROY_QP) |
+		BIT_ULL(IB_USER_VERBS_CMD_DESTROY_SRQ) |
+		BIT_ULL(IB_USER_VERBS_CMD_DETACH_MCAST) |
+		BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT) |
+		BIT_ULL(IB_USER_VERBS_CMD_MODIFY_QP) |
+		BIT_ULL(IB_USER_VERBS_CMD_MODIFY_SRQ) |
+		BIT_ULL(IB_USER_VERBS_CMD_OPEN_QP) |
+		BIT_ULL(IB_USER_VERBS_CMD_OPEN_XRCD) |
+		BIT_ULL(IB_USER_VERBS_CMD_QUERY_DEVICE) |
+		BIT_ULL(IB_USER_VERBS_CMD_QUERY_PORT) |
+		BIT_ULL(IB_USER_VERBS_CMD_QUERY_QP) |
+		BIT_ULL(IB_USER_VERBS_CMD_QUERY_SRQ) |
+		BIT_ULL(IB_USER_VERBS_CMD_REG_MR) |
+		BIT_ULL(IB_USER_VERBS_CMD_REREG_MR) |
+		BIT_ULL(IB_USER_VERBS_CMD_RESIZE_CQ);
 	return device;
 }
 EXPORT_SYMBOL(_ib_alloc_device);
@@ -1177,25 +1214,6 @@ out:
 	return ret;
 }
 
-static void setup_dma_device(struct ib_device *device,
-			     struct device *dma_device)
-{
-	/*
-	 * If the caller does not provide a DMA capable device then the IB
-	 * device will be used. In this case the caller should fully setup the
-	 * ibdev for DMA. This usually means using dma_virt_ops.
-	 */
-#ifdef CONFIG_DMA_VIRT_OPS
-	if (!dma_device) {
-		device->dev.dma_ops = &dma_virt_ops;
-		dma_device = &device->dev;
-	}
-#endif
-	WARN_ON(!dma_device);
-	device->dma_device = dma_device;
-	WARN_ON(!device->dma_device->dma_parms);
-}
-
 /*
  * setup_device() allocates memory and sets up data that requires calling the
  * device ops, this is the only reason these actions are not done during
@@ -1249,7 +1267,7 @@ static void disable_device(struct ib_device *device)
 		remove_client_context(device, cid);
 	}
 
-	ib_cq_pool_destroy(device);
+	ib_cq_pool_cleanup(device);
 
 	/* Pairs with refcount_set in enable_device */
 	ib_device_put(device);
@@ -1294,8 +1312,6 @@ static int enable_device_and_get(struct ib_device *device)
 			goto out;
 	}
 
-	ib_cq_pool_init(device);
-
 	down_read(&clients_rwsem);
 	xa_for_each_marked (&clients, index, client, CLIENT_REGISTERED) {
 		ret = add_client_context(device, client);
@@ -1341,7 +1357,14 @@ int ib_register_device(struct ib_device *device, const char *name,
 	if (ret)
 		return ret;
 
-	setup_dma_device(device, dma_device);
+	/*
+	 * If the caller does not provide a DMA capable device then the IB core
+	 * will set up ib_sge and scatterlist structures that stash the kernel
+	 * virtual address into the address field.
+	 */
+	WARN_ON(dma_device && !dma_device->dma_parms);
+	device->dma_device = dma_device;
+
 	ret = setup_device(device);
 	if (ret)
 		return ret;
@@ -1374,9 +1397,6 @@ int ib_register_device(struct ib_device *device, const char *name,
 	}
 
 	ret = enable_device_and_get(device);
-	dev_set_uevent_suppress(&device->dev, false);
-	/* Mark for userspace that device is ready */
-	kobject_uevent(&device->dev.kobj, KOBJ_ADD);
 	if (ret) {
 		void (*dealloc_fn)(struct ib_device *);
 
@@ -1396,8 +1416,12 @@ int ib_register_device(struct ib_device *device, const char *name,
 		ib_device_put(device);
 		__ib_unregister_device(device);
 		device->ops.dealloc_driver = dealloc_fn;
+		dev_set_uevent_suppress(&device->dev, false);
 		return ret;
 	}
+	dev_set_uevent_suppress(&device->dev, false);
+	/* Mark for userspace that device is ready */
+	kobject_uevent(&device->dev.kobj, KOBJ_ADD);
 	ib_device_put(device);
 
 	return 0;
@@ -2576,6 +2600,7 @@ void ib_set_device_ops(struct ib_device *dev, const struct ib_device_ops *ops)
 	SET_DEVICE_OP(dev_ops, create_qp);
 	SET_DEVICE_OP(dev_ops, create_rwq_ind_table);
 	SET_DEVICE_OP(dev_ops, create_srq);
+	SET_DEVICE_OP(dev_ops, create_user_ah);
 	SET_DEVICE_OP(dev_ops, create_wq);
 	SET_DEVICE_OP(dev_ops, dealloc_dm);
 	SET_DEVICE_OP(dev_ops, dealloc_driver);
@@ -2675,6 +2700,21 @@ void ib_set_device_ops(struct ib_device *dev, const struct ib_device_ops *ops)
 }
 EXPORT_SYMBOL(ib_set_device_ops);
 
+#ifdef CONFIG_INFINIBAND_VIRT_DMA
+int ib_dma_virt_map_sg(struct ib_device *dev, struct scatterlist *sg, int nents)
+{
+	struct scatterlist *s;
+	int i;
+
+	for_each_sg(sg, s, nents, i) {
+		sg_dma_address(s) = (uintptr_t)sg_virt(s);
+		sg_dma_len(s) = s->length;
+	}
+	return nents;
+}
+EXPORT_SYMBOL(ib_dma_virt_map_sg);
+#endif /* CONFIG_INFINIBAND_VIRT_DMA */
+
 static const struct rdma_nl_cbs ibnl_ls_cb_table[RDMA_NL_LS_NUM_OPS] = {
 	[RDMA_NL_LS_OP_RESOLVE] = {
 		.doit = ib_nl_handle_resolve_resp,