diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index dab1f9d658802964a07ef38f1ed46dab2ba6cf43..a3b1fc84cdcab9978ded22068cff5d01531f51e6 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -1177,58 +1177,23 @@ static int assign_name(struct ib_device *device, const char *name)
return ret;
}
-static void setup_dma_device(struct ib_device *device)
+static void setup_dma_device(struct ib_device *device,
+ struct device *dma_device)
{
- struct device *parent = device->dev.parent;
-
- WARN_ON_ONCE(device->dma_device);
-
-#ifdef CONFIG_DMA_OPS
- if (device->dev.dma_ops) {
- /*
- * The caller provided custom DMA operations. Copy the
- * DMA-related fields that are used by e.g. dma_alloc_coherent()
- * into device->dev.
- */
- device->dma_device = &device->dev;
- if (!device->dev.dma_mask) {
- if (parent)
- device->dev.dma_mask = parent->dma_mask;
- else
- WARN_ON_ONCE(true);
- }
- if (!device->dev.coherent_dma_mask) {
- if (parent)
- device->dev.coherent_dma_mask =
- parent->coherent_dma_mask;
- else
- WARN_ON_ONCE(true);
- }
- } else
-#endif /* CONFIG_DMA_OPS */
- {
- /*
- * The caller did not provide custom DMA operations. Use the
- * DMA mapping operations of the parent device.
- */
- WARN_ON_ONCE(!parent);
- device->dma_device = parent;
- }
-
- if (!device->dev.dma_parms) {
- if (parent) {
- /*
- * The caller did not provide DMA parameters, so
- * 'parent' probably represents a PCI device. The PCI
- * core sets the maximum segment size to 64
- * KB. Increase this parameter to 2 GB.
- */
- device->dev.dma_parms = parent->dma_parms;
- dma_set_max_seg_size(device->dma_device, SZ_2G);
- } else {
- WARN_ON_ONCE(true);
- }
+ /*
+ * 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);
}
/*
@@ -1241,7 +1206,6 @@ static int setup_device(struct ib_device *device)
struct ib_udata uhw = {.outlen = 0, .inlen = 0};
int ret;
- setup_dma_device(device);
ib_device_check_mandatory(device);
ret = setup_port_data(device);
@@ -1354,7 +1318,10 @@ static void prevent_dealloc_device(struct ib_device *ib_dev)
* ib_register_device - Register an IB device with IB core
* @device: Device to register
* @name: unique string device name. This may include a '%' which will
- * cause a unique index to be added to the passed device name.
+ * cause a unique index to be added to the passed device name.
+ * @dma_device: pointer to a DMA-capable device. If %NULL, 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.
*
* Low-level drivers use ib_register_device() to register their
* devices with the IB core. All registered clients will receive a
@@ -1365,7 +1332,8 @@ static void prevent_dealloc_device(struct ib_device *ib_dev)
* asynchronously then the device pointer may become freed as soon as this
* function returns.
*/
-int ib_register_device(struct ib_device *device, const char *name)
+int ib_register_device(struct ib_device *device, const char *name,
+ struct device *dma_device)
{
int ret;
@@ -1373,6 +1341,7 @@ int ib_register_device(struct ib_device *device, const char *name)
if (ret)
return ret;
+ setup_dma_device(device, dma_device);
ret = setup_device(device);
if (ret)
return ret;
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 53aee5a42ab85074d356d9f4aa7ee86a421a8687..04621ba8fa76112c7fd2bf00c22ba05f0b602d38 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -736,7 +736,8 @@ static int bnxt_re_register_ib(struct bnxt_re_dev *rdev)
if (ret)
return ret;
- return ib_register_device(ibdev, "bnxt_re%d");
+ dma_set_max_seg_size(&rdev->en_dev->pdev->dev, UINT_MAX);
+ return ib_register_device(ibdev, "bnxt_re%d", &rdev->en_dev->pdev->dev);
}
static void bnxt_re_dev_remove(struct bnxt_re_dev *rdev)
diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index 4b76f2f3f4e483e237aac474231e567d74119367..8138c57a1e43bc7acb01e57f042f1bff74eb2843 100644
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -570,7 +570,9 @@ void c4iw_register_device(struct work_struct *work)
ret = set_netdevs(&dev->ibdev, &dev->rdev);
if (ret)
goto err_dealloc_ctx;
- ret = ib_register_device(&dev->ibdev, "cxgb4_%d");
+ dma_set_max_seg_size(&dev->rdev.lldi.pdev->dev, UINT_MAX);
+ ret = ib_register_device(&dev->ibdev, "cxgb4_%d",
+ &dev->rdev.lldi.pdev->dev);
if (ret)
goto err_dealloc_ctx;
return;
diff --git a/drivers/infiniband/hw/efa/efa_main.c b/drivers/infiniband/hw/efa/efa_main.c
index 92d7011463203cef205f7f4b7ca2e1bd1ddc6b96..6faed3a81e0878e3413f011e2ed79879586d1bd9 100644
--- a/drivers/infiniband/hw/efa/efa_main.c
+++ b/drivers/infiniband/hw/efa/efa_main.c
@@ -331,7 +331,7 @@ static int efa_ib_device_add(struct efa_dev *dev)
ib_set_device_ops(&dev->ibdev, &efa_dev_ops);
- err = ib_register_device(&dev->ibdev, "efa_%d");
+ err = ib_register_device(&dev->ibdev, "efa_%d", &pdev->dev);
if (err)
goto err_release_doorbell_bar;
@@ -418,7 +418,7 @@ static int efa_device_init(struct efa_com_dev *edev, struct pci_dev *pdev)
err);
return err;
}
-
+ dma_set_max_seg_size(&pdev->dev, UINT_MAX);
return 0;
}
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index 467c829000190b68964ac70635c9c372f82903fb..afeffafc59f9067a72b63e454994009a9f60b6a9 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -549,7 +549,8 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev)
if (ret)
return ret;
}
- ret = ib_register_device(ib_dev, "hns_%d");
+ dma_set_max_seg_size(dev, UINT_MAX);
+ ret = ib_register_device(ib_dev, "hns_%d", dev);
if (ret) {
dev_err(dev, "ib_register_device failed!\n");
return ret;
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
index 747b4de6faca007c201a52d5bc3806a07944bacd..581ecbadf5861fb9bcf643ba5d9a5c5d921fd43f 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -2761,7 +2761,8 @@ int i40iw_register_rdma_device(struct i40iw_device *iwdev)
if (ret)
goto error;
- ret = ib_register_device(&iwibdev->ibdev, "i40iw%d");
+ dma_set_max_seg_size(&iwdev->hw.pcidev->dev, UINT_MAX);
+ ret = ib_register_device(&iwibdev->ibdev, "i40iw%d", &iwdev->hw.pcidev->dev);
if (ret)
goto error;
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 753c7040249887a048def8b290ec77ba6cd431bb..cd0fba6b096428b9c85f3d6763e58565860c7e0e 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -2841,7 +2841,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
goto err_steer_free_bitmap;
rdma_set_device_sysfs_group(&ibdev->ib_dev, &mlx4_attr_group);
- if (ib_register_device(&ibdev->ib_dev, "mlx4_%d"))
+ if (ib_register_device(&ibdev->ib_dev, "mlx4_%d",
+ &dev->persist->pdev->dev))
goto err_diag_counters;
if (mlx4_ib_mad_init(ibdev))
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 7082172b5b61a12248cd286458ee7a9223630554..89e04ca62ae0fa4965cdaba51dd7fb68a76a3012 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -4380,7 +4380,7 @@ static int mlx5_ib_stage_ib_reg_init(struct mlx5_ib_dev *dev)
name = "mlx5_%d";
else
name = "mlx5_bond_%d";
- return ib_register_device(&dev->ib_dev, name);
+ return ib_register_device(&dev->ib_dev, name, &dev->mdev->pdev->dev);
}
static void mlx5_ib_stage_pre_ib_reg_umr_cleanup(struct mlx5_ib_dev *dev)
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 31b558ff8218523c943d67d7929139efa6da6b79..c4d9cdc4ee97e8b6ad1665d300de91e4611a807c 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1206,7 +1206,7 @@ int mthca_register_device(struct mthca_dev *dev)
mutex_init(&dev->cap_mask_mutex);
rdma_set_device_sysfs_group(&dev->ib_dev, &mthca_attr_group);
- ret = ib_register_device(&dev->ib_dev, "mthca%d");
+ ret = ib_register_device(&dev->ib_dev, "mthca%d", &dev->pdev->dev);
if (ret)
return ret;
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index d8c47d24d6d66bee21900962f2181a20403c5b7f..9b96661a71435b84c982018adcfd1cf94b294220 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -255,7 +255,9 @@ static int ocrdma_register_device(struct ocrdma_dev *dev)
if (ret)
return ret;
- return ib_register_device(&dev->ibdev, "ocrdma%d");
+ dma_set_max_seg_size(&dev->nic_info.pdev->dev, UINT_MAX);
+ return ib_register_device(&dev->ibdev, "ocrdma%d",
+ &dev->nic_info.pdev->dev);
}
static int ocrdma_alloc_resources(struct ocrdma_dev *dev)
diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c
index 7c0aac3e635bcb148fe2c8a6eed524448ae190f0..967641662b24a75c37dd73e5a4dc2cdd891a91e3 100644
--- a/drivers/infiniband/hw/qedr/main.c
+++ b/drivers/infiniband/hw/qedr/main.c
@@ -293,7 +293,8 @@ static int qedr_register_device(struct qedr_dev *dev)
if (rc)
return rc;
- return ib_register_device(&dev->ibdev, "qedr%d");
+ dma_set_max_seg_size(&dev->pdev->dev, UINT_MAX);
+ return ib_register_device(&dev->ibdev, "qedr%d", &dev->pdev->dev);
}
/* This function allocates fast-path status block memory */
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c b/drivers/infiniband/hw/usnic/usnic_ib_main.c
index 462ed71abf531899256abf753c8cbdf65a36f028..aa2e65fc5cd652996049ead63c3e123e5a3848a8 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_main.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c
@@ -425,7 +425,8 @@ static void *usnic_ib_device_add(struct pci_dev *dev)
if (ret)
goto err_fwd_dealloc;
- if (ib_register_device(&us_ibdev->ib_dev, "usnic_%d"))
+ dma_set_max_seg_size(&dev->dev, SZ_2G);
+ if (ib_register_device(&us_ibdev->ib_dev, "usnic_%d", &dev->dev))
goto err_fwd_dealloc;
usnic_fwd_set_mtu(us_ibdev->ufdev, us_ibdev->netdev->mtu);
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
index 780fd2dfc07eb03200fede1ad914ab3900af2c87..fa2a3fa0c3e4e116125c6a122bd6126103ecf7a4 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
@@ -270,7 +270,7 @@ static int pvrdma_register_device(struct pvrdma_dev *dev)
spin_lock_init(&dev->srq_tbl_lock);
rdma_set_device_sysfs_group(&dev->ib_dev, &pvrdma_attr_group);
- ret = ib_register_device(&dev->ib_dev, "vmw_pvrdma%d");
+ ret = ib_register_device(&dev->ib_dev, "vmw_pvrdma%d", &dev->pdev->dev);
if (ret)
goto err_srq_free;
@@ -854,7 +854,7 @@ static int pvrdma_pci_probe(struct pci_dev *pdev,
goto err_free_resource;
}
}
-
+ dma_set_max_seg_size(&pdev->dev, UINT_MAX);
pci_set_master(pdev);
/* Map register space */
diff --git a/drivers/infiniband/sw/rdmavt/vt.c b/drivers/infiniband/sw/rdmavt/vt.c
index 2d534c450f3c861781df8a19a8ab512fe8150b62..52218684ad4ab0f77ceb0d1bc4a0c2e81a550c8b 100644
--- a/drivers/infiniband/sw/rdmavt/vt.c
+++ b/drivers/infiniband/sw/rdmavt/vt.c
@@ -579,7 +579,9 @@ int rvt_register_device(struct rvt_dev_info *rdi)
spin_lock_init(&rdi->n_cqs_lock);
/* DMA Operations */
- rdi->ibdev.dev.dma_ops = rdi->ibdev.dev.dma_ops ? : &dma_virt_ops;
+ rdi->ibdev.dev.dma_parms = rdi->ibdev.dev.parent->dma_parms;
+ dma_set_coherent_mask(&rdi->ibdev.dev,
+ rdi->ibdev.dev.parent->coherent_dma_mask);
/* Protection Domain */
spin_lock_init(&rdi->n_pds_lock);
@@ -627,7 +629,7 @@ int rvt_register_device(struct rvt_dev_info *rdi)
rdi->ibdev.num_comp_vectors = 1;
/* We are now good to announce we exist */
- ret = ib_register_device(&rdi->ibdev, dev_name(&rdi->ibdev.dev));
+ ret = ib_register_device(&rdi->ibdev, dev_name(&rdi->ibdev.dev), NULL);
if (ret) {
rvt_pr_err(rdi, "Failed to register driver with ib core.\n");
goto bail_wss;
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
index ba8faa34969b99ea9ad3ebe2e0e3f3c930c01575..1fc022362fbe4973298623e164a4394f03a93378 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
@@ -1128,12 +1128,9 @@ int rxe_register_device(struct rxe_dev *rxe, const char *ibdev_name)
dev->local_dma_lkey = 0;
addrconf_addr_eui48((unsigned char *)&dev->node_guid,
rxe->ndev->dev_addr);
- dev->dev.dma_ops = &dma_virt_ops;
dev->dev.dma_parms = &rxe->dma_parms;
- rxe->dma_parms = (struct device_dma_parameters)
- { .max_segment_size = SZ_2G };
- dma_coerce_mask_and_coherent(&dev->dev,
- dma_get_required_mask(&dev->dev));
+ dma_set_max_seg_size(&dev->dev, UINT_MAX);
+ dma_set_coherent_mask(&dev->dev, dma_get_required_mask(&dev->dev));
dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT)
| BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL)
@@ -1182,7 +1179,7 @@ int rxe_register_device(struct rxe_dev *rxe, const char *ibdev_name)
rxe->tfm = tfm;
rdma_set_device_sysfs_group(dev, &rxe_attr_group);
- err = ib_register_device(dev, ibdev_name);
+ err = ib_register_device(dev, ibdev_name, NULL);
if (err)
pr_warn("%s failed with error %d\n", __func__, err);
diff --git a/drivers/infiniband/sw/siw/siw_main.c b/drivers/infiniband/sw/siw/siw_main.c
index d862bec843766fdb2282799e8fd372ceaa3b2b3c..ca8bc72968672f7cbcc3563db5db47fcaf3dc28f 100644
--- a/drivers/infiniband/sw/siw/siw_main.c
+++ b/drivers/infiniband/sw/siw/siw_main.c
@@ -69,7 +69,7 @@ static int siw_device_register(struct siw_device *sdev, const char *name)
sdev->vendor_part_id = dev_id++;
- rv = ib_register_device(base_dev, name);
+ rv = ib_register_device(base_dev, name, NULL);
if (rv) {
pr_warn("siw: device registration error %d\n", rv);
return rv;
@@ -382,10 +382,10 @@ static struct siw_device *siw_device_create(struct net_device *netdev)
*/
base_dev->phys_port_cnt = 1;
base_dev->dev.parent = parent;
- base_dev->dev.dma_ops = &dma_virt_ops;
base_dev->dev.dma_parms = &sdev->dma_parms;
- sdev->dma_parms = (struct device_dma_parameters)
- { .max_segment_size = SZ_2G };
+ dma_set_max_seg_size(&base_dev->dev, UINT_MAX);
+ dma_set_coherent_mask(&base_dev->dev,
+ dma_get_required_mask(&base_dev->dev));
base_dev->num_comp_vectors = num_possible_cpus();
xa_init_flags(&sdev->qp_xa, XA_FLAGS_ALLOC1);
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index ce935d70fdc87940cd65ba1eca84be3ef170bbf9..9bf6c319a670e2472dc0fcf3fbc55324b51a5cfb 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -2782,7 +2782,8 @@ void ib_dealloc_device(struct ib_device *device);
void ib_get_device_fw_str(struct ib_device *device, char *str);
-int ib_register_device(struct ib_device *device, const char *name);
+int ib_register_device(struct ib_device *device, const char *name,
+ struct device *dma_device);
void ib_unregister_device(struct ib_device *device);
void ib_unregister_driver(enum rdma_driver_id driver_id);
void ib_unregister_device_and_put(struct ib_device *device);