diff options
Diffstat (limited to 'drivers/infiniband')
55 files changed, 287 insertions, 858 deletions
diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile index edaae9f9853c..e426ac877d19 100644 --- a/drivers/infiniband/core/Makefile +++ b/drivers/infiniband/core/Makefile @@ -13,6 +13,7 @@ ib_core-y := packer.o ud_header.o verbs.o cq.o rw.o sysfs.o \ multicast.o mad.o smi.o agent.o mad_rmpp.o ib_core-$(CONFIG_INFINIBAND_USER_MEM) += umem.o ib_core-$(CONFIG_INFINIBAND_ON_DEMAND_PAGING) += umem_odp.o umem_rbtree.o +ib_core-$(CONFIG_CGROUP_RDMA) += cgroup.o ib_cm-y := cm.o diff --git a/drivers/infiniband/core/cgroup.c b/drivers/infiniband/core/cgroup.c new file mode 100644 index 000000000000..126ac5f99db7 --- /dev/null +++ b/drivers/infiniband/core/cgroup.c @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2016 Parav Pandit <pandit.parav@gmail.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#include "core_priv.h" + +/** + * ib_device_register_rdmacg - register with rdma cgroup. + * @device: device to register to participate in resource + * accounting by rdma cgroup. + * + * Register with the rdma cgroup. Should be called before + * exposing rdma device to user space applications to avoid + * resource accounting leak. + * Returns 0 on success or otherwise failure code. + */ +int ib_device_register_rdmacg(struct ib_device *device) +{ + device->cg_device.name = device->name; + return rdmacg_register_device(&device->cg_device); +} + +/** + * ib_device_unregister_rdmacg - unregister with rdma cgroup. + * @device: device to unregister. + * + * Unregister with the rdma cgroup. Should be called after + * all the resources are deallocated, and after a stage when any + * other resource allocation by user application cannot be done + * for this device to avoid any leak in accounting. + */ +void ib_device_unregister_rdmacg(struct ib_device *device) +{ + rdmacg_unregister_device(&device->cg_device); +} + +int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, + struct ib_device *device, + enum rdmacg_resource_type resource_index) +{ + return rdmacg_try_charge(&cg_obj->cg, &device->cg_device, + resource_index); +} +EXPORT_SYMBOL(ib_rdmacg_try_charge); + +void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, + struct ib_device *device, + enum rdmacg_resource_type resource_index) +{ + rdmacg_uncharge(cg_obj->cg, &device->cg_device, + resource_index); +} +EXPORT_SYMBOL(ib_rdmacg_uncharge); diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h index 912ab4cd6eae..cb7d372e4bdf 100644 --- a/drivers/infiniband/core/core_priv.h +++ b/drivers/infiniband/core/core_priv.h @@ -35,6 +35,7 @@ #include <linux/list.h> #include <linux/spinlock.h> +#include <linux/cgroup_rdma.h> #include <rdma/ib_verbs.h> @@ -124,6 +125,35 @@ int ib_cache_setup_one(struct ib_device *device); void ib_cache_cleanup_one(struct ib_device *device); void ib_cache_release_one(struct ib_device *device); +#ifdef CONFIG_CGROUP_RDMA +int ib_device_register_rdmacg(struct ib_device *device); +void ib_device_unregister_rdmacg(struct ib_device *device); + +int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, + struct ib_device *device, + enum rdmacg_resource_type resource_index); + +void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, + struct ib_device *device, + enum rdmacg_resource_type resource_index); +#else +static inline int ib_device_register_rdmacg(struct ib_device *device) +{ return 0; } + +static inline void ib_device_unregister_rdmacg(struct ib_device *device) +{ } + +static inline int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, + struct ib_device *device, + enum rdmacg_resource_type resource_index) +{ return 0; } + +static inline void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, + struct ib_device *device, + enum rdmacg_resource_type resource_index) +{ } +#endif + static inline bool rdma_is_upper_dev_rcu(struct net_device *dev, struct net_device *upper) { diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index f2e48655a906..593d2ce6ec7c 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -333,6 +333,15 @@ int ib_register_device(struct ib_device *device, int ret; struct ib_client *client; struct ib_udata uhw = {.outlen = 0, .inlen = 0}; + struct device *parent = device->dev.parent; + + WARN_ON_ONCE(!parent); + if (!device->dev.dma_ops) + device->dev.dma_ops = parent->dma_ops; + if (!device->dev.dma_mask) + device->dev.dma_mask = parent->dma_mask; + if (!device->dev.coherent_dma_mask) + device->dev.coherent_dma_mask = parent->coherent_dma_mask; mutex_lock(&device_mutex); @@ -360,10 +369,18 @@ int ib_register_device(struct ib_device *device, goto out; } + ret = ib_device_register_rdmacg(device); + if (ret) { + pr_warn("Couldn't register device with rdma cgroup\n"); + ib_cache_cleanup_one(device); + goto out; + } + memset(&device->attrs, 0, sizeof(device->attrs)); ret = device->query_device(device, &device->attrs, &uhw); if (ret) { pr_warn("Couldn't query the device attributes\n"); + ib_device_unregister_rdmacg(device); ib_cache_cleanup_one(device); goto out; } @@ -372,6 +389,7 @@ int ib_register_device(struct ib_device *device, if (ret) { pr_warn("Couldn't register device %s with driver model\n", device->name); + ib_device_unregister_rdmacg(device); ib_cache_cleanup_one(device); goto out; } @@ -421,6 +439,7 @@ void ib_unregister_device(struct ib_device *device) mutex_unlock(&device_mutex); + ib_device_unregister_rdmacg(device); ib_device_unregister_sysfs(device); ib_cache_cleanup_one(device); diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index c1fb545e8d78..daadf3130c9f 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -1258,7 +1258,7 @@ int ib_device_register_sysfs(struct ib_device *device, int ret; int i; - device->dev.parent = device->dma_device; + WARN_ON_ONCE(!device->dev.parent); ret = dev_set_name(class_dev, "%s", device->name); if (ret) return ret; diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c index e0a995b85a2d..cc0d51fb06e3 100644 --- a/drivers/infiniband/core/ucm.c +++ b/drivers/infiniband/core/ucm.c @@ -1290,7 +1290,7 @@ static void ib_ucm_add_one(struct ib_device *device) goto err; ucm_dev->dev.class = &cm_class; - ucm_dev->dev.parent = device->dma_device; + ucm_dev->dev.parent = device->dev.parent; ucm_dev->dev.devt = ucm_dev->cdev.dev; ucm_dev->dev.release = ib_ucm_release_dev; dev_set_name(&ucm_dev->dev, "ucm%d", ucm_dev->devnum); diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index 249b403b43a4..aca7ff7abedc 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -1188,7 +1188,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num, if (cdev_add(&port->cdev, base, 1)) goto err_cdev; - port->dev = device_create(umad_class, device->dma_device, + port->dev = device_create(umad_class, device->dev.parent, port->cdev.dev, port, "umad%d", port->dev_num); if (IS_ERR(port->dev)) @@ -1207,7 +1207,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num, if (cdev_add(&port->sm_cdev, base, 1)) goto err_sm_cdev; - port->sm_dev = device_create(umad_class, device->dma_device, + port->sm_dev = device_create(umad_class, device->dev.parent, port->sm_cdev.dev, port, "issm%d", port->dev_num); if (IS_ERR(port->sm_dev)) diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index b4b395a054ac..7b7a76e1279a 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -316,6 +316,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, struct ib_udata udata; struct ib_ucontext *ucontext; struct file *filp; + struct ib_rdmacg_object cg_obj; int ret; if (out_len < sizeof resp) @@ -335,13 +336,18 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, (unsigned long) cmd.response + sizeof resp, in_len - sizeof cmd, out_len - sizeof resp); + ret = ib_rdmacg_try_charge(&cg_obj, ib_dev, RDMACG_RESOURCE_HCA_HANDLE); + if (ret) + goto err; + ucontext = ib_dev->alloc_ucontext(ib_dev, &udata); if (IS_ERR(ucontext)) { ret = PTR_ERR(ucontext); - goto err; + goto err_alloc; } ucontext->device = ib_dev; + ucontext->cg_obj = cg_obj; INIT_LIST_HEAD(&ucontext->pd_list); INIT_LIST_HEAD(&ucontext->mr_list); INIT_LIST_HEAD(&ucontext->mw_list); @@ -407,6 +413,9 @@ err_free: put_pid(ucontext->tgid); ib_dev->dealloc_ucontext(ucontext); +err_alloc: + ib_rdmacg_uncharge(&cg_obj, ib_dev, RDMACG_RESOURCE_HCA_HANDLE); + err: mutex_unlock(&file->mutex); return ret; @@ -561,6 +570,13 @@ ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file, return -ENOMEM; init_uobj(uobj, 0, file->ucontext, &pd_lock_class); + ret = ib_rdmacg_try_charge(&uobj->cg_obj, ib_dev, + RDMACG_RESOURCE_HCA_OBJECT); + if (ret) { + kfree(uobj); + return ret; + } + down_write(&uobj->mutex); pd = ib_dev->alloc_pd(ib_dev, file->ucontext, &udata); @@ -605,6 +621,7 @@ err_idr: ib_dealloc_pd(pd); err: + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); put_uobj_write(uobj); return ret; } @@ -637,6 +654,8 @@ ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file, if (ret) goto err_put; + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); + uobj->live = 0; put_uobj_write(uobj); @@ -1006,6 +1025,10 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file, goto err_put; } } + ret = ib_rdmacg_try_charge(&uobj->cg_obj, ib_dev, + RDMACG_RESOURCE_HCA_OBJECT); + if (ret) + goto err_charge; mr = pd->device->reg_user_mr(pd, cmd.start, cmd.length, cmd.hca_va, cmd.access_flags, &udata); @@ -1054,6 +1077,9 @@ err_unreg: ib_dereg_mr(mr); err_put: + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); + +err_charge: put_pd_read(pd); err_free: @@ -1178,6 +1204,8 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file, if (ret) return ret; + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); + idr_remove_uobj(&ib_uverbs_mr_idr, uobj); mutex_lock(&file->mutex); @@ -1226,6 +1254,11 @@ ssize_t ib_uverbs_alloc_mw(struct ib_uverbs_file *file, in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), out_len - sizeof(resp)); + ret = ib_rdmacg_try_charge(&uobj->cg_obj, ib_dev, + RDMACG_RESOURCE_HCA_OBJECT); + if (ret) + goto err_charge; + mw = pd->device->alloc_mw(pd, cmd.mw_type, &udata); if (IS_ERR(mw)) { ret = PTR_ERR(mw); @@ -1271,6 +1304,9 @@ err_unalloc: uverbs_dealloc_mw(mw); err_put: + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); + +err_charge: put_pd_read(pd); err_free: @@ -1306,6 +1342,8 @@ ssize_t ib_uverbs_dealloc_mw(struct ib_uverbs_file *file, if (ret) return ret; + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); + idr_remove_uobj(&ib_uverbs_mw_idr, uobj); mutex_lock(&file->mutex); @@ -1405,6 +1443,11 @@ static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file, if (cmd_sz > offsetof(typeof(*cmd), flags) + sizeof(cmd->flags)) attr.flags = cmd->flags; + ret = ib_rdmacg_try_charge(&obj->uobject.cg_obj, ib_dev, + RDMACG_RESOURCE_HCA_OBJECT); + if (ret) + goto err_charge; + cq = ib_dev->create_cq(ib_dev, &attr, file->ucontext, uhw); if (IS_ERR(cq)) { @@ -1452,6 +1495,10 @@ err_free: ib_destroy_cq(cq); err_file: + ib_rdmacg_uncharge(&obj->uobject.cg_obj, ib_dev, + RDMACG_RESOURCE_HCA_OBJECT); + +err_charge: if (ev_file) ib_uverbs_release_ucq(file, ev_file, obj); @@ -1732,6 +1779,8 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file, if (ret) return ret; + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); + idr_remove_uobj(&ib_uverbs_cq_idr, uobj); mutex_lock(&file->mutex); @@ -1905,6 +1954,11 @@ static int create_qp(struct ib_uverbs_file *file, goto err_put; } + ret = ib_rdmacg_try_charge(&obj->uevent.uobject.cg_obj, device, + RDMACG_RESOURCE_HCA_OBJECT); + if (ret) + goto err_put; + if (cmd->qp_type == IB_QPT_XRC_TGT) qp = ib_create_qp(pd, &attr); else @@ -1912,7 +1966,7 @@ static int create_qp(struct ib_uverbs_file *file, if (IS_ERR(qp)) { ret = PTR_ERR(qp); - goto err_put; + goto err_create; } if (cmd->qp_type != IB_QPT_XRC_TGT) { @@ -1993,6 +2047,10 @@ err_cb: err_destroy: ib_destroy_qp(qp); +err_create: + ib_rdmacg_uncharge(&obj->uevent.uobject.cg_obj, device, + RDMACG_RESOURCE_HCA_OBJECT); + err_put: if (xrcd) put_xrcd_read(xrcd_uobj); @@ -2519,6 +2577,8 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file, if (ret) return ret; + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); + if (obj->uxrcd) atomic_dec(&obj->uxrcd->refcnt); @@ -2970,11 +3030,16 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, memset(&attr.dmac, 0, sizeof(attr.dmac)); memcpy(attr.grh.dgid.raw, cmd.attr.grh.dgid, 16); + ret = ib_rdmacg_try_charge(&uobj->cg_obj, ib_dev, + RDMACG_RESOURCE_HCA_OBJECT); + if (ret) + goto err_charge; + ah = pd->device->create_ah(pd, &attr, &udata); if (IS_ERR(ah)) { ret = PTR_ERR(ah); - goto err_put; + goto err_create; } ah->device = pd->device; @@ -3013,7 +3078,10 @@ err_copy: err_destroy: ib_destroy_ah(ah); -err_put: +err_create: + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); + +err_charge: put_pd_read(pd); err: @@ -3047,6 +3115,8 @@ ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file, if (ret) return ret; + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); + idr_remove_uobj(&ib_uverbs_ah_idr, uobj); mutex_lock(&file->mutex); @@ -3861,10 +3931,16 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, err = -EINVAL; goto err_free; } + + err = ib_rdmacg_try_charge(&uobj->cg_obj, ib_dev, + RDMACG_RESOURCE_HCA_OBJECT); + if (err) + goto err_free; + flow_id = ib_create_flow(qp, flow_attr, IB_FLOW_DOMAIN_USER); if (IS_ERR(flow_id)) { err = PTR_ERR(flow_id); - goto err_free; + goto err_create; } flow_id->uobject = uobj; uobj->object = flow_id; @@ -3897,6 +3973,8 @@ err_copy: idr_remove_uobj(&ib_uverbs_rule_idr, uobj); destroy_flow: ib_destroy_flow(flow_id); +err_create: + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); err_free: kfree(flow_attr); err_put: @@ -3936,8 +4014,11 @@ int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file, flow_id = uobj->object; ret = ib_destroy_flow(flow_id); - if (!ret) + if (!ret) { + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, + RDMACG_RESOURCE_HCA_OBJECT); uobj->live = 0; + } put_uobj_write(uobj); @@ -4005,6 +4086,11 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file, obj->uevent.events_reported = 0; INIT_LIST_HEAD(&obj->uevent.event_list); + ret = ib_rdmacg_try_charge(&obj->uevent.uobject.cg_obj, ib_dev, + RDMACG_RESOURCE_HCA_OBJECT); + if (ret) + goto err_put_cq; + srq = pd->device->create_srq(pd, &attr, udata); if (IS_ERR(srq)) { ret = PTR_ERR(srq); @@ -4069,6 +4155,8 @@ err_destroy: ib_destroy_srq(srq); err_put: + ib_rdmacg_uncharge(&obj->uevent.uobject.cg_obj, ib_dev, + RDMACG_RESOURCE_HCA_OBJECT); put_pd_read(pd); err_put_cq: @@ -4255,6 +4343,8 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file, if (ret) return ret; + ib_rdmacg_uncharge(&uobj->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_OBJECT); + if (srq_type == IB_SRQT_XRC) { us = container_of(obj, struct ib_usrq_object, uevent); atomic_dec(&us->uxrcd->refcnt); diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index b3f95d453fba..35c788a32e26 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -51,6 +51,7 @@ #include <rdma/ib.h> #include "uverbs.h" +#include "core_priv.h" MODULE_AUTHOR("Roland Dreier"); MODULE_DESCRIPTION("InfiniBand userspace verbs access"); @@ -237,6 +238,8 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, idr_remove_uobj(&ib_uverbs_ah_idr, uobj); ib_destroy_ah(ah); + ib_rdmacg_uncharge(&uobj->cg_obj, context->device, + RDMACG_RESOURCE_HCA_OBJECT); kfree(uobj); } @@ -246,6 +249,8 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, idr_remove_uobj(&ib_uverbs_mw_idr, uobj); uverbs_dealloc_mw(mw); + ib_rdmacg_uncharge(&uobj->cg_obj, context->device, + RDMACG_RESOURCE_HCA_OBJECT); kfree(uobj); } @@ -254,6 +259,8 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, idr_remove_uobj(&ib_uverbs_rule_idr, uobj); ib_destroy_flow(flow_id); + ib_rdmacg_uncharge(&uobj->cg_obj, context->device, + RDMACG_RESOURCE_HCA_OBJECT); kfree(uobj); } @@ -266,6 +273,8 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, if (qp == qp->real_qp) ib_uverbs_detach_umcast(qp, uqp); ib_destroy_qp(qp); + ib_rdmacg_uncharge(&uobj->cg_obj, context->device, + RDMACG_RESOURCE_HCA_OBJECT); ib_uverbs_release_uevent(file, &uqp->uevent); kfree(uqp); } @@ -298,6 +307,8 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, idr_remove_uobj(&ib_uverbs_srq_idr, uobj); ib_destroy_srq(srq); + ib_rdmacg_uncharge(&uobj->cg_obj, context->device, + RDMACG_RESOURCE_HCA_OBJECT); ib_uverbs_release_uevent(file, uevent); kfree(uevent); } @@ -310,6 +321,8 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, idr_remove_uobj(&ib_uverbs_cq_idr, uobj); ib_destroy_cq(cq); + ib_rdmacg_uncharge(&uobj->cg_obj, context->device, + RDMACG_RESOURCE_HCA_OBJECT); ib_uverbs_release_ucq(file, ev_file, ucq); kfree(ucq); } @@ -319,6 +332,8 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, idr_remove_uobj(&ib_uverbs_mr_idr, uobj); ib_dereg_mr(mr); + ib_rdmacg_uncharge(&uobj->cg_obj, context->device, + RDMACG_RESOURCE_HCA_OBJECT); kfree(uobj); } @@ -339,11 +354,16 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, idr_remove_uobj(&ib_uverbs_pd_idr, uobj); ib_dealloc_pd(pd); + ib_rdmacg_uncharge(&uobj->cg_obj, context->device, + RDMACG_RESOURCE_HCA_OBJECT); kfree(uobj); } put_pid(context->tgid); + ib_rdmacg_uncharge(&context->cg_obj, context->device, + RDMACG_RESOURCE_HCA_HANDLE); + return context->device->dealloc_ucontext(context); } @@ -1174,7 +1194,7 @@ static void ib_uverbs_add_one(struct ib_device *device) if (cdev_add(&uverbs_dev->cdev, base, 1)) goto err_cdev; - uverbs_dev->dev = device_create(uverbs_class, device->dma_device, + uverbs_dev->dev = device_create(uverbs_class, device->dev.parent, uverbs_dev->cdev.dev, uverbs_dev, "uverbs%d", uverbs_dev->devnum); if (IS_ERR(uverbs_dev->dev)) diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index bd452a92b386..5d355401179b 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -436,7 +436,7 @@ static int bnxt_re_register_ib(struct bnxt_re_dev *rdev) bnxt_qplib_get_guid(rdev->netdev->dev_addr, (u8 *)&ibdev->node_guid); ibdev->num_comp_vectors = 1; - ibdev->dma_device = &rdev->en_dev->pdev->dev; + ibdev->dev.parent = &rdev->en_dev->pdev->dev; ibdev->local_dma_lkey = BNXT_QPLIB_RSVD_LKEY; /* User space */ diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index 48649f93258a..318ec5267bdf 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c @@ -1393,7 +1393,7 @@ int iwch_register_device(struct iwch_dev *dev) memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC)); dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports; dev->ibdev.num_comp_vectors = 1; - dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev); + dev->ibdev.dev.parent = &dev->rdev.rnic_info.pdev->dev; dev->ibdev.query_device = iwch_query_device; dev->ibdev.query_port = iwch_query_port; dev->ibdev.query_pkey = iwch_query_pkey; diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c index bdf7de571d83..df64417ab6f2 100644 --- a/drivers/infiniband/hw/cxgb4/provider.c +++ b/drivers/infiniband/hw/cxgb4/provider.c @@ -572,7 +572,7 @@ int c4iw_register_device(struct c4iw_dev *dev) 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.dev.parent = &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; diff --git a/drivers/infiniband/hw/hfi1/dma.c b/drivers/infiniband/hw/hfi1/dma.c deleted file mode 100644 index 7e8dab892848..000000000000 --- a/drivers/infiniband/hw/hfi1/dma.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * Copyright(c) 2015, 2016 Intel Corporation. - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * BSD LICENSE - * - * 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. - * - Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ -#include <linux/types.h> -#include <linux/scatterlist.h> - -#include "verbs.h" - -#define BAD_DMA_ADDRESS ((u64)0) - -/* - * The following functions implement driver specific replacements - * for the ib_dma_*() functions. - * - * These functions return kernel virtual addresses instead of - * device bus addresses since the driver uses the CPU to copy - * data instead of using hardware DMA. - */ - -static int hfi1_mapping_error(struct ib_device *dev, u64 dma_addr) -{ - return dma_addr == BAD_DMA_ADDRESS; -} - -static u64 hfi1_dma_map_single(struct ib_device *dev, void *cpu_addr, - size_t size, enum dma_data_direction direction) -{ - if (WARN_ON(!valid_dma_direction(direction))) - return BAD_DMA_ADDRESS; - - return (u64)cpu_addr; -} - -static void hfi1_dma_unmap_single(struct ib_device *dev, u64 addr, size_t size, - enum dma_data_direction direction) -{ - /* This is a stub, nothing to be done here */ -} - -static u64 hfi1_dma_map_page(struct ib_device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - u64 addr; - - if (WARN_ON(!valid_dma_direction(direction))) - return BAD_DMA_ADDRESS; - - if (offset + size > PAGE_SIZE) - return BAD_DMA_ADDRESS; - - addr = (u64)page_address(page); - if (addr) - addr += offset; - - return addr; -} - -static void hfi1_dma_unmap_page(struct ib_device *dev, u64 addr, size_t size, - enum dma_data_direction direction) -{ - /* This is a stub, nothing to be done here */ -} - -static int hfi1_map_sg(struct ib_device *dev, struct scatterlist *sgl, - int nents, enum dma_data_direction direction) -{ - struct scatterlist *sg; - u64 addr; - int i; - int ret = nents; - - if (WARN_ON(!valid_dma_direction(direction))) - return BAD_DMA_ADDRESS; - - for_each_sg(sgl, sg, nents, i) { - addr = (u64)page_address(sg_page(sg)); - if (!addr) { - ret = 0; - break; - } - sg->dma_address = addr + sg->offset; -#ifdef CONFIG_NEED_SG_DMA_LENGTH - sg->dma_length = sg->length; -#endif - } - return ret; -} - -static void hfi1_unmap_sg(struct ib_device *dev, - struct scatterlist *sg, int nents, - enum dma_data_direction direction) -{ - /* This is a stub, nothing to be done here */ -} - -static void hfi1_sync_single_for_cpu(struct ib_device *dev, u64 addr, - size_t size, enum dma_data_direction dir) -{ -} - -static void hfi1_sync_single_for_device(struct ib_device *dev, u64 addr, - size_t size, - enum dma_data_direction dir) -{ -} - -static void *hfi1_dma_alloc_coherent(struct ib_device *dev, size_t size, - u64 *dma_handle, gfp_t flag) -{ - struct page *p; - void *addr = NULL; - - p = alloc_pages(flag, get_order(size)); - if (p) - addr = page_address(p); - if (dma_handle) - *dma_handle = (u64)addr; - return addr; -} - -static void hfi1_dma_free_coherent(struct ib_device *dev, size_t size, - void *cpu_addr, u64 dma_handle) -{ - free_pages((unsigned long)cpu_addr, get_order(size)); -} - -struct ib_dma_mapping_ops hfi1_dma_mapping_ops = { - .mapping_error = hfi1_mapping_error, - .map_single = hfi1_dma_map_single, - .unmap_single = hfi1_dma_unmap_single, - .map_page = hfi1_dma_map_page, - .unmap_page = hfi1_dma_unmap_page, - .map_sg = hfi1_map_sg, - .unmap_sg = hfi1_unmap_sg, - .sync_single_for_cpu = hfi1_sync_single_for_cpu, - .sync_single_for_device = hfi1_sync_single_for_device, - .alloc_coherent = hfi1_dma_alloc_coherent, - .free_coherent = hfi1_dma_free_coherent -}; diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c index bd786b7bd30b..3b19c16a9e45 100644 --- a/drivers/infiniband/hw/hfi1/file_ops.c +++ b/drivers/infiniband/hw/hfi1/file_ops.c @@ -92,7 +92,7 @@ static unsigned int poll_next(struct file *, struct poll_table_struct *); static int user_event_ack(struct hfi1_ctxtdata *, int, unsigned long); static int set_ctxt_pkey(struct hfi1_ctxtdata *, unsigned, u16); static int manage_rcvq(struct hfi1_ctxtdata *, unsigned, int); -static int vma_fault(struct vm_area_struct *, struct vm_fault *); +static int vma_fault(struct vm_fault *); static long hfi1_file_ioctl(struct file *fp, unsigned int cmd, unsigned long arg); @@ -185,7 +185,7 @@ static int hfi1_file_open(struct inode *inode, struct file *fp) if (fd) { fd->rec_cpu_num = -1; /* no cpu affinity by default */ fd->mm = current->mm; - atomic_inc(&fd->mm->mm_count); + mmgrab(fd->mm); fp->private_data = fd; } else { fp->private_data = NULL; @@ -695,7 +695,7 @@ done: * Local (non-chip) user memory is not mapped right away but as it is * accessed by the user-level code. */ -static int vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +static int vma_fault(struct vm_fault *vmf) { struct page *page; diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c index 6e595afca24c..09cda3c35e82 100644 --- a/drivers/infiniband/hw/hfi1/mad.c +++ b/drivers/infiniband/hw/hfi1/mad.c @@ -4406,7 +4406,7 @@ int hfi1_process_mad(struct ib_device *ibdev, int mad_flags, u8 port, switch (in_mad->base_version) { case OPA_MGMT_BASE_VERSION: if (unlikely(in_mad_size != sizeof(struct opa_mad))) { - dev_err(ibdev->dma_device, "invalid in_mad_size\n"); + dev_err(ibdev->dev.parent, "invalid in_mad_size\n"); return IB_MAD_RESULT_FAILURE; } return hfi1_process_opa_mad(ibdev, mad_flags, port, diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c index 33f00f0719c5..222315fadab1 100644 --- a/drivers/infiniband/hw/hfi1/verbs.c +++ b/drivers/infiniband/hw/hfi1/verbs.c @@ -1703,7 +1703,7 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd) strlcpy(ibdev->name + lcpysz, "_%d", IB_DEVICE_NAME_MAX - lcpysz); ibdev->owner = THIS_MODULE; ibdev->phys_port_cnt = dd->num_pports; - ibdev->dma_device = &dd->pcidev->dev; + ibdev->dev.parent = &dd->pcidev->dev; ibdev->modify_device = modify_device; ibdev->alloc_hw_stats = alloc_hw_stats; ibdev->get_hw_stats = get_hw_stats; diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index 6843409fba29..c3b41f95e70a 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -439,7 +439,7 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev) ib_dev->owner = THIS_MODULE; ib_dev->node_type = RDMA_NODE_IB_CA; - ib_dev->dma_device = dev; + ib_dev->dev.parent = dev; ib_dev->phys_port_cnt = hr_dev->caps.num_ports; ib_dev->local_dma_lkey = hr_dev->caps.reserved_lkey; diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c index f036f32f15d3..3f44f2f91f03 100644 --- a/drivers/infiniband/hw/hns/hns_roce_qp.c +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c @@ -101,7 +101,7 @@ static void hns_roce_ib_qp_event(struct hns_roce_qp *hr_qp, event.event = IB_EVENT_QP_ACCESS_ERR; break; default: - dev_dbg(ibqp->device->dma_device, "roce_ib: Unexpected event type %d on QP %06lx\n", + dev_dbg(ibqp->device->dev.parent, "roce_ib: Unexpected event type %d on QP %06lx\n", type, hr_qp->qpn); return; } diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c index 5f695bf232a8..9b2849979756 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c +++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c @@ -2758,7 +2758,6 @@ static struct i40iw_ib_device *i40iw_init_rdma_device(struct i40iw_device *iwdev (1ull << IB_USER_VERBS_CMD_POST_SEND); iwibdev->ibdev.phys_port_cnt = 1; iwibdev->ibdev.num_comp_vectors = iwdev->ceqs_count; - iwibdev->ibdev.dma_device = &pcidev->dev; iwibdev->ibdev.dev.parent = &pcidev->dev; iwibdev->ibdev.query_port = i40iw_query_port; iwibdev->ibdev.modify_port = i40iw_modify_port; diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 211cbbe9ccd1..88608906ce25 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -2628,7 +2628,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.phys_port_cnt = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports; ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; - ibdev->ib_dev.dma_device = &dev->persist->pdev->dev; + ibdev->ib_dev.dev.parent = &dev->persist->pdev->dev; ibdev->ib_dev.get_netdev = mlx4_ib_get_netdev; ibdev->ib_dev.add_gid = mlx4_ib_add_gid; ibdev->ib_dev.del_gid = mlx4_ib_del_gid; diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h index 7f3d976d81ed..64fed44b43a6 100644 --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h @@ -55,7 +55,7 @@ #define pr_fmt(fmt) "<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__ #define mlx4_ib_warn(ibdev, format, arg...) \ - dev_warn((ibdev)->dma_device, MLX4_IB_DRV_NAME ": " format, ## arg) + dev_warn((ibdev)->dev.parent, MLX4_IB_DRV_NAME ": " format, ## arg) enum { MLX4_IB_SQ_MIN_WQE_SHIFT = 6, diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index 5d73989d9771..433bcdbdd680 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -292,10 +292,10 @@ mlx4_alloc_priv_pages(struct ib_device *device, if (!mr->pages) return -ENOMEM; - mr->page_map = dma_map_single(device->dma_device, mr->pages, + mr->page_map = dma_map_single(device->dev.parent, mr->pages, mr->page_map_size, DMA_TO_DEVICE); - if (dma_mapping_error(device->dma_device, mr->page_map)) { + if (dma_mapping_error(device->dev.parent, mr->page_map)) { ret = -ENOMEM; goto err; } @@ -313,7 +313,7 @@ mlx4_free_priv_pages(struct mlx4_ib_mr *mr) if (mr->pages) { struct ib_device *device = mr->ibmr.device; - dma_unmap_single(device->dma_device, mr->page_map, + dma_unmap_single(device->dev.parent, mr->page_map, mr->page_map_size, DMA_TO_DEVICE); free_page((unsigned long)mr->pages); mr->pages = NULL; diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 6a8498c052a5..5b3355268725 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -3363,7 +3363,7 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev) dev->ib_dev.phys_port_cnt = dev->num_ports; dev->ib_dev.num_comp_vectors = dev->mdev->priv.eq_table.num_comp_vectors; - dev->ib_dev.dma_device = &mdev->pdev->dev; + dev->ib_dev.dev.parent = &mdev->pdev->dev; dev->ib_dev.uverbs_abi_ver = MLX5_IB_UVERBS_ABI_VERSION; dev->ib_dev.uverbs_cmd_mask = diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index 3c1f483d003f..b8f9382a8b7d 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -966,7 +966,7 @@ int mlx5_ib_update_xlt(struct mlx5_ib_mr *mr, u64 idx, int npages, int page_shift, int flags) { struct mlx5_ib_dev *dev = mr->dev; - struct device *ddev = dev->ib_dev.dma_device; + struct device *ddev = dev->ib_dev.dev.parent; struct mlx5_ib_ucontext *uctx = NULL; int size; void *xlt; @@ -1411,9 +1411,9 @@ mlx5_alloc_priv_descs(struct ib_device *device, mr->descs = PTR_ALIGN(mr->descs_alloc, MLX5_UMR_ALIGN); - mr->desc_map = dma_map_single(device->dma_device, mr->descs, + mr->desc_map = dma_map_single(device->dev.parent, mr->descs, size, DMA_TO_DEVICE); - if (dma_mapping_error(device->dma_device, mr->desc_map)) { + if (dma_mapping_error(device->dev.parent, mr->desc_map)) { ret = -ENOMEM; goto err; } @@ -1432,7 +1432,7 @@ mlx5_free_priv_descs(struct mlx5_ib_mr *mr) struct ib_device *device = mr->ibmr.device; int size = mr->max_descs * mr->desc_size; - dma_unmap_single(device->dma_device, mr->desc_map, + dma_unmap_single(device->dev.parent, mr->desc_map, size, DMA_TO_DEVICE); kfree(mr->descs_alloc); mr->descs = NULL; diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c index ce163184e742..22d0e6ee5af6 100644 --- a/drivers/infiniband/hw/mthca/mthca_provider.c +++ b/drivers/infiniband/hw/mthca/mthca_provider.c @@ -1224,7 +1224,7 @@ int mthca_register_device(struct mthca_dev *dev) dev->ib_dev.node_type = RDMA_NODE_IB_CA; dev->ib_dev.phys_port_cnt = dev->limits.num_ports; dev->ib_dev.num_comp_vectors = 1; - dev->ib_dev.dma_device = &dev->pdev->dev; + dev->ib_dev.dev.parent = &dev->pdev->dev; dev->ib_dev.query_device = mthca_query_device; dev->ib_dev.query_port = mthca_query_port; dev->ib_dev.modify_device = mthca_modify_device; diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index d3eae2f3e9f5..ccf0a4cffe9c 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -3731,7 +3731,6 @@ struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev) nesibdev->ibdev.phys_port_cnt = 1; nesibdev->ibdev.num_comp_vectors = 1; - nesibdev->ibdev.dma_device = &nesdev->pcidev->dev; nesibdev->ibdev.dev.parent = &nesdev->pcidev->dev; nesibdev->ibdev.query_device = nes_query_device; nesibdev->ibdev.query_port = nes_query_port; diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c index 3e43bdc81e7a..57c9a2ad0260 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c @@ -199,7 +199,7 @@ static int ocrdma_register_device(struct ocrdma_dev *dev) dev->ibdev.alloc_ucontext = ocrdma_alloc_ucontext; dev->ibdev.dealloc_ucontext = ocrdma_dealloc_ucontext; dev->ibdev.mmap = ocrdma_mmap; - dev->ibdev.dma_device = &dev->nic_info.pdev->dev; + dev->ibdev.dev.parent = &dev->nic_info.pdev->dev; dev->ibdev.process_mad = ocrdma_process_mad; dev->ibdev.get_port_immutable = ocrdma_port_immutable; diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c index 3ac8aa5ef37d..b9b47e5cc8b3 100644 --- a/drivers/infiniband/hw/qedr/main.c +++ b/drivers/infiniband/hw/qedr/main.c @@ -170,7 +170,7 @@ static int qedr_register_device(struct qedr_dev *dev) dev->ibdev.get_port_immutable = qedr_port_immutable; dev->ibdev.get_netdev = qedr_get_netdev; - dev->ibdev.dma_device = &dev->pdev->dev; + dev->ibdev.dev.parent = &dev->pdev->dev; dev->ibdev.get_link_layer = qedr_link_layer; dev->ibdev.get_dev_fw_str = qedr_get_dev_fw_str; diff --git a/drivers/infiniband/hw/qib/qib_dma.c b/drivers/infiniband/hw/qib/qib_dma.c deleted file mode 100644 index 59fe092b4b0f..000000000000 --- a/drivers/infiniband/hw/qib/qib_dma.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Copyright (c) 2006, 2009, 2010 QLogic, Corporation. 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/types.h> -#include <linux/scatterlist.h> - -#include "qib_verbs.h" - -#define BAD_DMA_ADDRESS ((u64) 0) - -/* - * The following functions implement driver specific replacements - * for the ib_dma_*() functions. - * - * These functions return kernel virtual addresses instead of - * device bus addresses since the driver uses the CPU to copy - * data instead of using hardware DMA. - */ - -static int qib_mapping_error(struct ib_device *dev, u64 dma_addr) -{ - return dma_addr == BAD_DMA_ADDRESS; -} - -static u64 qib_dma_map_single(struct ib_device *dev, void *cpu_addr, - size_t size, enum dma_data_direction direction) -{ - BUG_ON(!valid_dma_direction(direction)); - return (u64) cpu_addr; -} - -static void qib_dma_unmap_single(struct ib_device *dev, u64 addr, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(!valid_dma_direction(direction)); -} - -static u64 qib_dma_map_page(struct ib_device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - u64 addr; - - BUG_ON(!valid_dma_direction(direction)); - - if (offset + size > PAGE_SIZE) { - addr = BAD_DMA_ADDRESS; - goto done; - } - - addr = (u64) page_address(page); - if (addr) - addr += offset; - /* TODO: handle highmem pages */ - -done: - return addr; -} - -static void qib_dma_unmap_page(struct ib_device *dev, u64 addr, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(!valid_dma_direction(direction)); -} - -static int qib_map_sg(struct ib_device *dev, struct scatterlist *sgl, - int nents, enum dma_data_direction direction) -{ - struct scatterlist *sg; - u64 addr; - int i; - int ret = nents; - - BUG_ON(!valid_dma_direction(direction)); - - for_each_sg(sgl, sg, nents, i) { - addr = (u64) page_address(sg_page(sg)); - /* TODO: handle highmem pages */ - if (!addr) { - ret = 0; - break; - } - sg->dma_address = addr + sg->offset; -#ifdef CONFIG_NEED_SG_DMA_LENGTH - sg->dma_length = sg->length; -#endif - } - return ret; -} - -static void qib_unmap_sg(struct ib_device *dev, - struct scatterlist *sg, int nents, - enum dma_data_direction direction) -{ - BUG_ON(!valid_dma_direction(direction)); -} - -static void qib_sync_single_for_cpu(struct ib_device *dev, u64 addr, - size_t size, enum dma_data_direction dir) -{ -} - -static void qib_sync_single_for_device(struct ib_device *dev, u64 addr, - size_t size, - enum dma_data_direction dir) -{ -} - -static void *qib_dma_alloc_coherent(struct ib_device *dev, size_t size, - u64 *dma_handle, gfp_t flag) -{ - struct page *p; - void *addr = NULL; - - p = alloc_pages(flag, get_order(size)); - if (p) - addr = page_address(p); - if (dma_handle) - *dma_handle = (u64) addr; - return addr; -} - -static void qib_dma_free_coherent(struct ib_device *dev, size_t size, - void *cpu_addr, u64 dma_handle) -{ - free_pages((unsigned long) cpu_addr, get_order(size)); -} - -struct ib_dma_mapping_ops qib_dma_mapping_ops = { - .mapping_error = qib_mapping_error, - .map_single = qib_dma_map_single, - .unmap_single = qib_dma_unmap_single, - .map_page = qib_dma_map_page, - .unmap_page = qib_dma_unmap_page, - .map_sg = qib_map_sg, - .unmap_sg = qib_unmap_sg, - .sync_single_for_cpu = qib_sync_single_for_cpu, - .sync_single_for_device = qib_sync_single_for_device, - .alloc_coherent = qib_dma_alloc_coherent, - .free_coherent = qib_dma_free_coherent -}; diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c index 2d1eacf1dfed..9396c1807cc3 100644 --- a/drivers/infiniband/hw/qib/qib_file_ops.c +++ b/drivers/infiniband/hw/qib/qib_file_ops.c @@ -893,7 +893,7 @@ bail: /* * qib_file_vma_fault - handle a VMA page fault. */ -static int qib_file_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +static int qib_file_vma_fault(struct vm_fault *vmf) { struct page *page; diff --git a/drivers/infiniband/hw/qib/qib_iba6120.c b/drivers/infiniband/hw/qib/qib_iba6120.c index 92399d3ffd15..06de1cbcf67d 100644 --- a/drivers/infiniband/hw/qib/qib_iba6120.c +++ b/drivers/infiniband/hw/qib/qib_iba6120.c @@ -707,7 +707,7 @@ static void qib_6120_clear_freeze(struct qib_devdata *dd) /* disable error interrupts, to avoid confusion */ qib_write_kreg(dd, kr_errmask, 0ULL); - /* also disable interrupts; errormask is sometimes overwriten */ + /* also disable interrupts; errormask is sometimes overwritten */ qib_6120_set_intr_state(dd, 0); qib_cancel_sends(dd->pport); diff --git a/drivers/infiniband/hw/qib/qib_iba7220.c b/drivers/infiniband/hw/qib/qib_iba7220.c index e55e31a69195..55a18384c22d 100644 --- a/drivers/infiniband/hw/qib/qib_iba7220.c +++ b/drivers/infiniband/hw/qib/qib_iba7220.c @@ -1259,7 +1259,7 @@ static void qib_7220_clear_freeze(struct qib_devdata *dd) /* disable error interrupts, to avoid confusion */ qib_write_kreg(dd, kr_errmask, 0ULL); - /* also disable interrupts; errormask is sometimes overwriten */ + /* also disable interrupts; errormask is sometimes overwritten */ qib_7220_set_intr_state(dd, 0); qib_cancel_sends(dd->pport); diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c index 9cc97bd42775..12c4208fd701 100644 --- a/drivers/infiniband/hw/qib/qib_iba7322.c +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -2053,7 +2053,7 @@ static void qib_7322_clear_freeze(struct qib_devdata *dd) qib_write_kreg_port(dd->pport + pidx, krp_errmask, 0ULL); - /* also disable interrupts; errormask is sometimes overwriten */ + /* also disable interrupts; errormask is sometimes overwritten */ qib_7322_set_intr_state(dd, 0); /* clear the freeze, and be sure chip saw it */ diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c index 2c3c93572c17..8fdf79f8d4e4 100644 --- a/drivers/infiniband/hw/qib/qib_keys.c +++ b/drivers/infiniband/hw/qib/qib_keys.c @@ -158,10 +158,7 @@ int qib_rkey_ok(struct rvt_qp *qp, struct rvt_sge *sge, unsigned n, m; size_t off; - /* - * We use RKEY == zero for kernel virtual addresses - * (see qib_get_dma_mr and qib_dma.c). - */ + /* We use RKEY == zero for kernel virtual addresses */ rcu_read_lock(); if (rkey == 0) { struct rvt_pd *pd = ibpd_to_rvtpd(qp->ibqp.pd); diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c index 6b56f1c01a07..83f8b5f24381 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.c +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -1550,7 +1550,7 @@ int qib_register_ib_device(struct qib_devdata *dd) ibdev->owner = THIS_MODULE; ibdev->node_guid = ppd->guid; ibdev->phys_port_cnt = dd->num_pports; - ibdev->dma_device = &dd->pcidev->dev; + ibdev->dev.parent = &dd->pcidev->dev; ibdev->modify_device = qib_modify_device; ibdev->process_mad = qib_process_mad; diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c b/drivers/infiniband/hw/usnic/usnic_ib_main.c index 4f5a45db08e1..c0c1e8b027b1 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib_main.c +++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c @@ -382,7 +382,7 @@ static void *usnic_ib_device_add(struct pci_dev *dev) us_ibdev->ib_dev.node_type = RDMA_NODE_USNIC_UDP; us_ibdev->ib_dev.phys_port_cnt = USNIC_IB_PORT_CNT; us_ibdev->ib_dev.num_comp_vectors = USNIC_IB_NUM_COMP_VECTORS; - us_ibdev->ib_dev.dma_device = &dev->dev; + us_ibdev->ib_dev.dev.parent = &dev->dev; us_ibdev->ib_dev.uverbs_abi_ver = USNIC_UVERBS_ABI_VERSION; strlcpy(us_ibdev->ib_dev.name, "usnic_%d", IB_DEVICE_NAME_MAX); diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c index e03d2f6c1f90..100bea5c42ff 100644 --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c @@ -173,7 +173,7 @@ static int pvrdma_register_device(struct pvrdma_dev *dev) dev->flags = 0; dev->ib_dev.owner = THIS_MODULE; dev->ib_dev.num_comp_vectors = 1; - dev->ib_dev.dma_device = &dev->pdev->dev; + dev->ib_dev.dev.parent = &dev->pdev->dev; dev->ib_dev.uverbs_abi_ver = PVRDMA_UVERBS_ABI_VERSION; dev->ib_dev.uverbs_cmd_mask = (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | diff --git a/drivers/infiniband/sw/rdmavt/Kconfig b/drivers/infiniband/sw/rdmavt/Kconfig index 1da8d01a6855..fdd001ce13d8 100644 --- a/drivers/infiniband/sw/rdmavt/Kconfig +++ b/drivers/infiniband/sw/rdmavt/Kconfig @@ -1,5 +1,6 @@ config INFINIBAND_RDMAVT tristate "RDMA verbs transport library" depends on 64BIT + select DMA_VIRT_OPS ---help--- This is a common software verbs provider for RDMA networks. diff --git a/drivers/infiniband/sw/rdmavt/Makefile b/drivers/infiniband/sw/rdmavt/Makefile index c33a4f84413c..78b276a90401 100644 --- a/drivers/infiniband/sw/rdmavt/Makefile +++ b/drivers/infiniband/sw/rdmavt/Makefile @@ -7,7 +7,7 @@ # obj-$(CONFIG_INFINIBAND_RDMAVT) += rdmavt.o -rdmavt-y := vt.o ah.o cq.o dma.o mad.o mcast.o mmap.o mr.o pd.o qp.o \ +rdmavt-y := vt.o ah.o cq.o mad.o mcast.o mmap.o mr.o pd.o qp.o \ rc.o srq.o trace.o CFLAGS_trace.o = -I$(src) diff --git a/drivers/infiniband/sw/rdmavt/dma.c b/drivers/infiniband/sw/rdmavt/dma.c deleted file mode 100644 index f2cefb0d9180..000000000000 --- a/drivers/infiniband/sw/rdmavt/dma.c +++ /dev/null @@ -1,198 +0,0 @@ -/* - * Copyright(c) 2016 Intel Corporation. - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * BSD LICENSE - * - * 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. - * - Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ -#include <linux/types.h> -#include <linux/scatterlist.h> -#include <rdma/ib_verbs.h> - -#include "dma.h" - -#define BAD_DMA_ADDRESS ((u64)0) - -/* - * The following functions implement driver specific replacements - * for the ib_dma_*() functions. - * - * These functions return kernel virtual addresses instead of - * device bus addresses since the driver uses the CPU to copy - * data instead of using hardware DMA. - */ - -static int rvt_mapping_error(struct ib_device *dev, u64 dma_addr) -{ - return dma_addr == BAD_DMA_ADDRESS; -} - -static u64 rvt_dma_map_single(struct ib_device *dev, void *cpu_addr, - size_t size, enum dma_data_direction direction) -{ - if (WARN_ON(!valid_dma_direction(direction))) - return BAD_DMA_ADDRESS; - - return (u64)cpu_addr; -} - -static void rvt_dma_unmap_single(struct ib_device *dev, u64 addr, size_t size, - enum dma_data_direction direction) -{ - /* This is a stub, nothing to be done here */ -} - -static u64 rvt_dma_map_page(struct ib_device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - u64 addr; - - if (WARN_ON(!valid_dma_direction(direction))) - return BAD_DMA_ADDRESS; - - addr = (u64)page_address(page); - if (addr) - addr += offset; - - return addr; -} - -static void rvt_dma_unmap_page(struct ib_device *dev, u64 addr, size_t size, - enum dma_data_direction direction) -{ - /* This is a stub, nothing to be done here */ -} - -static int rvt_map_sg(struct ib_device *dev, struct scatterlist *sgl, - int nents, enum dma_data_direction direction) -{ - struct scatterlist *sg; - u64 addr; - int i; - int ret = nents; - - if (WARN_ON(!valid_dma_direction(direction))) - return 0; - - for_each_sg(sgl, sg, nents, i) { - addr = (u64)page_address(sg_page(sg)); - if (!addr) { - ret = 0; - break; - } - sg->dma_address = addr + sg->offset; -#ifdef CONFIG_NEED_SG_DMA_LENGTH - sg->dma_length = sg->length; -#endif - } - return ret; -} - -static void rvt_unmap_sg(struct ib_device *dev, - struct scatterlist *sg, int nents, - enum dma_data_direction direction) -{ - /* This is a stub, nothing to be done here */ -} - -static int rvt_map_sg_attrs(struct ib_device *dev, struct scatterlist *sgl, - int nents, enum dma_data_direction direction, - unsigned long attrs) -{ - return rvt_map_sg(dev, sgl, nents, direction); -} - -static void rvt_unmap_sg_attrs(struct ib_device *dev, - struct scatterlist *sg, int nents, - enum dma_data_direction direction, - unsigned long attrs) -{ - return rvt_unmap_sg(dev, sg, nents, direction); -} - -static void rvt_sync_single_for_cpu(struct ib_device *dev, u64 addr, - size_t size, enum dma_data_direction dir) -{ -} - -static void rvt_sync_single_for_device(struct ib_device *dev, u64 addr, - size_t size, - enum dma_data_direction dir) -{ -} - -static void *rvt_dma_alloc_coherent(struct ib_device *dev, size_t size, - u64 *dma_handle, gfp_t flag) -{ - struct page *p; - void *addr = NULL; - - p = alloc_pages(flag, get_order(size)); - if (p) - addr = page_address(p); - if (dma_handle) - *dma_handle = (u64)addr; - return addr; -} - -static void rvt_dma_free_coherent(struct ib_device *dev, size_t size, - void *cpu_addr, u64 dma_handle) -{ - free_pages((unsigned long)cpu_addr, get_order(size)); -} - -struct ib_dma_mapping_ops rvt_default_dma_mapping_ops = { - .mapping_error = rvt_mapping_error, - .map_single = rvt_dma_map_single, - .unmap_single = rvt_dma_unmap_single, - .map_page = rvt_dma_map_page, - .unmap_page = rvt_dma_unmap_page, - .map_sg = rvt_map_sg, - .unmap_sg = rvt_unmap_sg, - .map_sg_attrs = rvt_map_sg_attrs, - .unmap_sg_attrs = rvt_unmap_sg_attrs, - .sync_single_for_cpu = rvt_sync_single_for_cpu, - .sync_single_for_device = rvt_sync_single_for_device, - .alloc_coherent = rvt_dma_alloc_coherent, - .free_coherent = rvt_dma_free_coherent -}; diff --git a/drivers/infiniband/sw/rdmavt/dma.h b/drivers/infiniband/sw/rdmavt/dma.h deleted file mode 100644 index 979f07e09195..000000000000 --- a/drivers/infiniband/sw/rdmavt/dma.h +++ /dev/null @@ -1,53 +0,0 @@ -#ifndef DEF_RDMAVTDMA_H -#define DEF_RDMAVTDMA_H - -/* - * Copyright(c) 2016 Intel Corporation. - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * BSD LICENSE - * - * 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. - * - Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -extern struct ib_dma_mapping_ops rvt_default_dma_mapping_ops; - -#endif /* DEF_RDMAVTDMA_H */ diff --git a/drivers/infiniband/sw/rdmavt/mad.c b/drivers/infiniband/sw/rdmavt/mad.c index f6e99778d7ca..bba241faca61 100644 --- a/drivers/infiniband/sw/rdmavt/mad.c +++ b/drivers/infiniband/sw/rdmavt/mad.c @@ -74,9 +74,9 @@ int rvt_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, u16 *out_mad_pkey_index) { /* - * MAD processing is quite different between hfi1 and qib. Therfore this - * is expected to be provided by the driver. Other drivers in the future - * may chose to implement this but it should not be made into a + * MAD processing is quite different between hfi1 and qib. Therefore + * this is expected to be provided by the driver. Other drivers in the + * future may choose to implement this but it should not be made into a * requirement. */ if (ibport_num_to_idx(ibdev, port_num) < 0) diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c index c80a69b1ffcb..ae30b6838d79 100644 --- a/drivers/infiniband/sw/rdmavt/mr.c +++ b/drivers/infiniband/sw/rdmavt/mr.c @@ -320,8 +320,8 @@ static void __rvt_free_mr(struct rvt_mr *mr) * @acc: access flags * * Return: the memory region on success, otherwise returns an errno. - * Note that all DMA addresses should be created via the - * struct ib_dma_mapping_ops functions (see dma.c). + * Note that all DMA addresses should be created via the functions in + * struct dma_virt_ops. */ struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc) { @@ -799,7 +799,7 @@ int rvt_lkey_ok(struct rvt_lkey_table *rkt, struct rvt_pd *pd, /* * We use LKEY == zero for kernel virtual addresses - * (see rvt_get_dma_mr and dma.c). + * (see rvt_get_dma_mr() and dma_virt_ops). */ rcu_read_lock(); if (sge->lkey == 0) { @@ -897,7 +897,7 @@ int rvt_rkey_ok(struct rvt_qp *qp, struct rvt_sge *sge, /* * We use RKEY == zero for kernel virtual addresses - * (see rvt_get_dma_mr and dma.c). + * (see rvt_get_dma_mr() and dma_virt_ops). */ rcu_read_lock(); if (rkey == 0) { diff --git a/drivers/infiniband/sw/rdmavt/vt.c b/drivers/infiniband/sw/rdmavt/vt.c index 1165639a914b..0d7c6bb551d9 100644 --- a/drivers/infiniband/sw/rdmavt/vt.c +++ b/drivers/infiniband/sw/rdmavt/vt.c @@ -47,6 +47,7 @@ #include <linux/module.h> #include <linux/kernel.h> +#include <linux/dma-mapping.h> #include "vt.h" #include "trace.h" @@ -778,8 +779,7 @@ int rvt_register_device(struct rvt_dev_info *rdi) } /* DMA Operations */ - rdi->ibdev.dma_ops = - rdi->ibdev.dma_ops ? : &rvt_default_dma_mapping_ops; + rdi->ibdev.dev.dma_ops = rdi->ibdev.dev.dma_ops ? : &dma_virt_ops; /* Protection Domain */ spin_lock_init(&rdi->n_pds_lock); diff --git a/drivers/infiniband/sw/rdmavt/vt.h b/drivers/infiniband/sw/rdmavt/vt.h index 6b01eaa4461b..f363505312be 100644 --- a/drivers/infiniband/sw/rdmavt/vt.h +++ b/drivers/infiniband/sw/rdmavt/vt.h @@ -50,7 +50,6 @@ #include <rdma/rdma_vt.h> #include <linux/pci.h> -#include "dma.h" #include "pd.h" #include "qp.h" #include "ah.h" diff --git a/drivers/infiniband/sw/rxe/Kconfig b/drivers/infiniband/sw/rxe/Kconfig index 1e4e628fe7b0..7d1ac27ed251 100644 --- a/drivers/infiniband/sw/rxe/Kconfig +++ b/drivers/infiniband/sw/rxe/Kconfig @@ -2,6 +2,7 @@ config RDMA_RXE tristate "Software RDMA over Ethernet (RoCE) driver" depends on INET && PCI && INFINIBAND depends on NET_UDP_TUNNEL + select DMA_VIRT_OPS ---help--- This driver implements the InfiniBand RDMA transport over the Linux network stack. It enables a system with a diff --git a/drivers/infiniband/sw/rxe/Makefile b/drivers/infiniband/sw/rxe/Makefile index 3b3fb9d1c470..ec35ff022a42 100644 --- a/drivers/infiniband/sw/rxe/Makefile +++ b/drivers/infiniband/sw/rxe/Makefile @@ -14,7 +14,6 @@ rdma_rxe-y := \ rxe_qp.o \ rxe_cq.o \ rxe_mr.o \ - rxe_dma.o \ rxe_opcode.o \ rxe_mmap.o \ rxe_icrc.o \ diff --git a/drivers/infiniband/sw/rxe/rxe_dma.c b/drivers/infiniband/sw/rxe/rxe_dma.c deleted file mode 100644 index a0f8af5851ae..000000000000 --- a/drivers/infiniband/sw/rxe/rxe_dma.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. - * Copyright (c) 2015 System Fabric Works, 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 "rxe.h" -#include "rxe_loc.h" - -#define DMA_BAD_ADDER ((u64)0) - -static int rxe_mapping_error(struct ib_device *dev, u64 dma_addr) -{ - return dma_addr == DMA_BAD_ADDER; -} - -static u64 rxe_dma_map_single(struct ib_device *dev, - void *cpu_addr, size_t size, - enum dma_data_direction direction) -{ - WARN_ON(!valid_dma_direction(direction)); - return (uintptr_t)cpu_addr; -} - -static void rxe_dma_unmap_single(struct ib_device *dev, - u64 addr, size_t size, - enum dma_data_direction direction) -{ - WARN_ON(!valid_dma_direction(direction)); -} - -static u64 rxe_dma_map_page(struct ib_device *dev, - struct page *page, - unsigned long offset, - size_t size, enum dma_data_direction direction) -{ - u64 addr; - - WARN_ON(!valid_dma_direction(direction)); - - if (offset + size > PAGE_SIZE) { - addr = DMA_BAD_ADDER; - goto done; - } - - addr = (uintptr_t)page_address(page); - if (addr) - addr += offset; - -done: - return addr; -} - -static void rxe_dma_unmap_page(struct ib_device *dev, - u64 addr, size_t size, - enum dma_data_direction direction) -{ - WARN_ON(!valid_dma_direction(direction)); -} - -static int rxe_map_sg(struct ib_device *dev, struct scatterlist *sgl, - int nents, enum dma_data_direction direction) -{ - struct scatterlist *sg; - u64 addr; - int i; - int ret = nents; - - WARN_ON(!valid_dma_direction(direction)); - - for_each_sg(sgl, sg, nents, i) { - addr = (uintptr_t)page_address(sg_page(sg)); - if (!addr) { - ret = 0; - break; - } - sg->dma_address = addr + sg->offset; -#ifdef CONFIG_NEED_SG_DMA_LENGTH - sg->dma_length = sg->length; -#endif - } - - return ret; -} - -static void rxe_unmap_sg(struct ib_device *dev, - struct scatterlist *sg, int nents, - enum dma_data_direction direction) -{ - WARN_ON(!valid_dma_direction(direction)); -} - -static int rxe_map_sg_attrs(struct ib_device *dev, struct scatterlist *sgl, - int nents, enum dma_data_direction direction, - unsigned long attrs) -{ - return rxe_map_sg(dev, sgl, nents, direction); -} - -static void rxe_unmap_sg_attrs(struct ib_device *dev, - struct scatterlist *sg, int nents, - enum dma_data_direction direction, - unsigned long attrs) -{ - rxe_unmap_sg(dev, sg, nents, direction); -} - -static void rxe_sync_single_for_cpu(struct ib_device *dev, - u64 addr, - size_t size, enum dma_data_direction dir) -{ -} - -static void rxe_sync_single_for_device(struct ib_device *dev, - u64 addr, - size_t size, enum dma_data_direction dir) -{ -} - -static void *rxe_dma_alloc_coherent(struct ib_device *dev, size_t size, - u64 *dma_handle, gfp_t flag) -{ - struct page *p; - void *addr = NULL; - - p = alloc_pages(flag, get_order(size)); - if (p) - addr = page_address(p); - - if (dma_handle) - *dma_handle = (uintptr_t)addr; - - return addr; -} - -static void rxe_dma_free_coherent(struct ib_device *dev, size_t size, - void *cpu_addr, u64 dma_handle) -{ - free_pages((unsigned long)cpu_addr, get_order(size)); -} - -struct ib_dma_mapping_ops rxe_dma_mapping_ops = { - .mapping_error = rxe_mapping_error, - .map_single = rxe_dma_map_single, - .unmap_single = rxe_dma_unmap_single, - .map_page = rxe_dma_map_page, - .unmap_page = rxe_dma_unmap_page, - .map_sg = rxe_map_sg, - .unmap_sg = rxe_unmap_sg, - .map_sg_attrs = rxe_map_sg_attrs, - .unmap_sg_attrs = rxe_unmap_sg_attrs, - .sync_single_for_cpu = rxe_sync_single_for_cpu, - .sync_single_for_device = rxe_sync_single_for_device, - .alloc_coherent = rxe_dma_alloc_coherent, - .free_coherent = rxe_dma_free_coherent -}; diff --git a/drivers/infiniband/sw/rxe/rxe_loc.h b/drivers/infiniband/sw/rxe/rxe_loc.h index 272337e5e948..183a9d379b41 100644 --- a/drivers/infiniband/sw/rxe/rxe_loc.h +++ b/drivers/infiniband/sw/rxe/rxe_loc.h @@ -237,8 +237,6 @@ int rxe_srq_from_attr(struct rxe_dev *rxe, struct rxe_srq *srq, struct ib_srq_attr *attr, enum ib_srq_attr_mask mask, struct ib_udata *udata); -extern struct ib_dma_mapping_ops rxe_dma_mapping_ops; - void rxe_release(struct kref *kref); void rxe_drain_req_pkts(struct rxe_qp *qp, bool notify); diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c index d2e2eff7a515..5113e502f6f9 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.c +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c @@ -31,6 +31,7 @@ * SOFTWARE. */ +#include <linux/dma-mapping.h> #include "rxe.h" #include "rxe_loc.h" #include "rxe_queue.h" @@ -169,7 +170,7 @@ static int rxe_query_pkey(struct ib_device *device, struct rxe_port *port; if (unlikely(port_num != 1)) { - dev_warn(device->dma_device, "invalid port_num = %d\n", + dev_warn(device->dev.parent, "invalid port_num = %d\n", port_num); goto err1; } @@ -177,7 +178,7 @@ static int rxe_query_pkey(struct ib_device *device, port = &rxe->port; if (unlikely(index >= port->attr.pkey_tbl_len)) { - dev_warn(device->dma_device, "invalid index = %d\n", + dev_warn(device->dev.parent, "invalid index = %d\n", index); goto err1; } @@ -1234,10 +1235,10 @@ int rxe_register_device(struct rxe_dev *rxe) dev->node_type = RDMA_NODE_IB_CA; dev->phys_port_cnt = 1; dev->num_comp_vectors = RXE_NUM_COMP_VECTORS; - dev->dma_device = rxe_dma_device(rxe); + dev->dev.parent = rxe_dma_device(rxe); dev->local_dma_lkey = 0; dev->node_guid = rxe_node_guid(rxe); - dev->dma_ops = &rxe_dma_mapping_ops; + dev->dev.dma_ops = &dma_virt_ops; dev->uverbs_abi_ver = RXE_UVERBS_ABI_VERSION; dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c index 7b6d40ff1acf..bac455a1942d 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c @@ -65,7 +65,7 @@ static void ipoib_get_drvinfo(struct net_device *netdev, ib_get_device_fw_str(priv->ca, drvinfo->fw_version, sizeof(drvinfo->fw_version)); - strlcpy(drvinfo->bus_info, dev_name(priv->ca->dma_device), + strlcpy(drvinfo->bus_info, dev_name(priv->ca->dev.parent), sizeof(drvinfo->bus_info)); strlcpy(drvinfo->version, ipoib_driver_version, diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 259c59f67394..d1d3fb7a6127 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -2020,7 +2020,7 @@ static struct net_device *ipoib_add_port(const char *format, if (!priv) goto alloc_mem_failed; - SET_NETDEV_DEV(priv->dev, hca->dma_device); + SET_NETDEV_DEV(priv->dev, hca->dev.parent); priv->dev->dev_id = port - 1; result = ib_query_port(hca, port, &attr); diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 30a6985909e0..5a887efb4bdf 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -652,7 +652,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, } if (iscsi_host_add(shost, - ib_conn->device->ib_device->dma_device)) { + ib_conn->device->ib_device->dev.parent)) { mutex_unlock(&iser_conn->state_mutex); goto free_host; } diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 3c7fa972a38c..cee46266f434 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2933,7 +2933,7 @@ static int srp_add_target(struct srp_host *host, struct srp_target_port *target) sprintf(target->target_name, "SRP.T10:%016llX", be64_to_cpu(target->id_ext)); - if (scsi_add_host(target->scsi_host, host->srp_dev->dev->dma_device)) + if (scsi_add_host(target->scsi_host, host->srp_dev->dev->dev.parent)) return -ENODEV; memcpy(ids.port_id, &target->id_ext, 8); @@ -3546,7 +3546,7 @@ static struct srp_host *srp_add_port(struct srp_device *device, u8 port) host->port = port; host->dev.class = &srp_class; - host->dev.parent = device->dev->dma_device; + host->dev.parent = device->dev->dev.parent; dev_set_name(&host->dev, "srp-%s-%d", device->dev->name, port); if (device_register(&host->dev)) diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index bc5a2d86ae7e..7e314c2f2071 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -2479,8 +2479,7 @@ static void srpt_add_one(struct ib_device *device) struct ib_srq_init_attr srq_attr; int i; - pr_debug("device = %p, device->dma_ops = %p\n", device, - device->dma_ops); + pr_debug("device = %p\n", device); sdev = kzalloc(sizeof(*sdev), GFP_KERNEL); if (!sdev) |