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RDMA/usnic: Refactor usnic_uiom_alloc_pd() 

Rather than hard-coding pci_bus_type, pass the PF device through to
usnic_uiom_alloc_pd() and retrieve its bus there. This prepares for
iommu_domain_alloc() changing to take a device rather than a bus_type.

Link: https://lore.kernel.org/r/ef607cb3f5a09920b86971b8c8e60af8c647457e.1649169359.git.robin.murphy@arm.com
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Robin Murphy 2022-04-05 15:35:59 +01:00 committed by Jason Gunthorpe
parent d9539fb7c2
commit cc97c6d94e
3 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/infiniband/hw/usnic/usnic_ib_verbs.c
View File

@ -443,7 +443,7 @@ int usnic_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
{
struct usnic_ib_pd *pd = to_upd(ibpd);
pd->umem_pd = usnic_uiom_alloc_pd();
pd->umem_pd = usnic_uiom_alloc_pd(ibpd->device->dev.parent);
if (IS_ERR(pd->umem_pd))
return PTR_ERR(pd->umem_pd);
@ -707,4 +707,3 @@ int usnic_ib_mmap(struct ib_ucontext *context,
usnic_err("No VF %u found\n", vfid);
return -EINVAL;
}

5
drivers/infiniband/hw/usnic/usnic_uiom.c
View File

@ -40,7 +40,6 @@
#include <linux/iommu.h>
#include <linux/workqueue.h>
#include <linux/list.h>
#include <linux/pci.h>
#include <rdma/ib_verbs.h>
#include "usnic_log.h"
@ -439,7 +438,7 @@ void usnic_uiom_reg_release(struct usnic_uiom_reg *uiomr)
__usnic_uiom_release_tail(uiomr);
}
struct usnic_uiom_pd *usnic_uiom_alloc_pd(void)
struct usnic_uiom_pd *usnic_uiom_alloc_pd(struct device *dev)
{
struct usnic_uiom_pd *pd;
void *domain;
@ -448,7 +447,7 @@ struct usnic_uiom_pd *usnic_uiom_alloc_pd(void)
if (!pd)
return ERR_PTR(-ENOMEM);
pd->domain = domain = iommu_domain_alloc(&pci_bus_type);
pd->domain = domain = iommu_domain_alloc(dev->bus);
if (!domain) {
usnic_err("Failed to allocate IOMMU domain");
kfree(pd);

2
drivers/infiniband/hw/usnic/usnic_uiom.h
View File

@ -80,7 +80,7 @@ struct usnic_uiom_chunk {
struct scatterlist page_list[];
};
struct usnic_uiom_pd *usnic_uiom_alloc_pd(void);
struct usnic_uiom_pd *usnic_uiom_alloc_pd(struct device *dev);
void usnic_uiom_dealloc_pd(struct usnic_uiom_pd *pd);
int usnic_uiom_attach_dev_to_pd(struct usnic_uiom_pd *pd, struct device *dev);
void usnic_uiom_detach_dev_from_pd(struct usnic_uiom_pd *pd,