From: Leon Romanovsky <leon@kernel.org>
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: Yishai Hadas <yishaih@nvidia.com>,
Bernard Metzler <bmt@zurich.ibm.com>,
Bryan Tan <bryan-bt.tan@broadcom.com>,
Chengchang Tang <tangchengchang@huawei.com>,
Cheng Xu <chengyou@linux.alibaba.com>,
Christian Benvenuti <benve@cisco.com>,
Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>,
Edward Srouji <edwards@nvidia.com>,
Junxian Huang <huangjunxian6@hisilicon.com>,
Kai Shen <kaishen@linux.alibaba.com>,
Kalesh AP <kalesh-anakkur.purayil@broadcom.com>,
Konstantin Taranov <kotaranov@microsoft.com>,
linux-rdma@vger.kernel.org, Long Li <longli@microsoft.com>,
Michael Margolin <mrgolin@amazon.com>,
Michal Kalderon <mkalderon@marvell.com>,
Mustafa Ismail <mustafa.ismail@intel.com>,
Nelson Escobar <neescoba@cisco.com>,
Potnuri Bharat Teja <bharat@chelsio.com>,
Selvin Xavier <selvin.xavier@broadcom.com>,
Tatyana Nikolova <tatyana.e.nikolova@intel.com>,
Vishnu Dasa <vishnu.dasa@broadcom.com>,
Zhu Yanjun <zyjzyj2000@gmail.com>
Subject: [PATCH rdma-next v2 7/8] IB: Extend UVERBS_METHOD_REG_MR to get DMAH
Date: Thu, 17 Jul 2025 15:17:31 +0300 [thread overview]
Message-ID: <2ae1e628c0675db81f092cc00d3ad6fbf6139405.1752752567.git.leon@kernel.org> (raw)
In-Reply-To: <cover.1752752567.git.leon@kernel.org>
From: Yishai Hadas <yishaih@nvidia.com>
Extend UVERBS_METHOD_REG_MR to get DMAH and pass it to all drivers.
It will be used in mlx5 driver as part of the next patch from the
series.
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/infiniband/core/uverbs_cmd.c | 2 +-
drivers/infiniband/core/uverbs_std_types_mr.c | 27 +++++++++++++++----
drivers/infiniband/core/verbs.c | 5 +++-
drivers/infiniband/hw/bnxt_re/ib_verbs.c | 8 ++++++
drivers/infiniband/hw/bnxt_re/ib_verbs.h | 2 ++
drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 1 +
drivers/infiniband/hw/cxgb4/mem.c | 6 ++++-
drivers/infiniband/hw/efa/efa.h | 2 ++
drivers/infiniband/hw/efa/efa_verbs.c | 12 +++++++++
drivers/infiniband/hw/erdma/erdma_verbs.c | 6 ++++-
drivers/infiniband/hw/erdma/erdma_verbs.h | 3 ++-
drivers/infiniband/hw/hns/hns_roce_device.h | 1 +
drivers/infiniband/hw/hns/hns_roce_mr.c | 6 +++++
drivers/infiniband/hw/irdma/verbs.c | 9 +++++++
drivers/infiniband/hw/mana/mana_ib.h | 2 ++
drivers/infiniband/hw/mana/mr.c | 8 ++++++
drivers/infiniband/hw/mlx4/mlx4_ib.h | 1 +
drivers/infiniband/hw/mlx4/mr.c | 4 +++
drivers/infiniband/hw/mlx5/mlx5_ib.h | 2 ++
drivers/infiniband/hw/mlx5/mr.c | 8 +++---
drivers/infiniband/hw/mthca/mthca_provider.c | 6 ++++-
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 6 ++++-
drivers/infiniband/hw/ocrdma/ocrdma_verbs.h | 3 ++-
drivers/infiniband/hw/qedr/verbs.c | 6 ++++-
drivers/infiniband/hw/qedr/verbs.h | 3 ++-
drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 4 +++
drivers/infiniband/hw/usnic/usnic_ib_verbs.h | 1 +
drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c | 5 ++++
.../infiniband/hw/vmw_pvrdma/pvrdma_verbs.h | 1 +
drivers/infiniband/sw/rdmavt/mr.c | 5 ++++
drivers/infiniband/sw/rdmavt/mr.h | 1 +
drivers/infiniband/sw/rxe/rxe_verbs.c | 4 +++
drivers/infiniband/sw/siw/siw_verbs.c | 7 ++++-
drivers/infiniband/sw/siw/siw_verbs.h | 3 ++-
include/rdma/ib_verbs.h | 3 +++
include/uapi/rdma/ib_user_ioctl_cmds.h | 1 +
36 files changed, 154 insertions(+), 20 deletions(-)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 88aa8d4599df2..ce16404cdfb8c 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -741,7 +741,7 @@ static int ib_uverbs_reg_mr(struct uverbs_attr_bundle *attrs)
}
mr = pd->device->ops.reg_user_mr(pd, cmd.start, cmd.length, cmd.hca_va,
- cmd.access_flags,
+ cmd.access_flags, NULL,
&attrs->driver_udata);
if (IS_ERR(mr)) {
ret = PTR_ERR(mr);
diff --git a/drivers/infiniband/core/uverbs_std_types_mr.c b/drivers/infiniband/core/uverbs_std_types_mr.c
index 1bd4b17b5515d..570b9656801d7 100644
--- a/drivers/infiniband/core/uverbs_std_types_mr.c
+++ b/drivers/infiniband/core/uverbs_std_types_mr.c
@@ -238,7 +238,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_REG_DMABUF_MR)(
return ret;
mr = pd->device->ops.reg_user_mr_dmabuf(pd, offset, length, iova, fd,
- access_flags,
+ access_flags, NULL,
attrs);
if (IS_ERR(mr))
return PTR_ERR(mr);
@@ -276,6 +276,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_REG_MR)(
u32 valid_access_flags = IB_ACCESS_SUPPORTED;
u64 length, iova, fd_offset = 0, addr = 0;
struct ib_device *ib_dev = pd->device;
+ struct ib_dmah *dmah = NULL;
bool has_fd_offset = false;
bool has_addr = false;
bool has_fd = false;
@@ -340,6 +341,13 @@ static int UVERBS_HANDLER(UVERBS_METHOD_REG_MR)(
return -EINVAL;
}
+ if (uverbs_attr_is_valid(attrs, UVERBS_ATTR_REG_MR_DMA_HANDLE)) {
+ dmah = uverbs_attr_get_obj(attrs,
+ UVERBS_ATTR_REG_MR_DMA_HANDLE);
+ if (IS_ERR(dmah))
+ return PTR_ERR(dmah);
+ }
+
ret = uverbs_get_flags32(&access_flags, attrs,
UVERBS_ATTR_REG_MR_ACCESS_FLAGS,
valid_access_flags);
@@ -351,11 +359,12 @@ static int UVERBS_HANDLER(UVERBS_METHOD_REG_MR)(
return ret;
if (has_fd)
- mr = pd->device->ops.reg_user_mr_dmabuf(pd, fd_offset, length, iova,
- fd, access_flags, attrs);
+ mr = pd->device->ops.reg_user_mr_dmabuf(pd, fd_offset, length,
+ iova, fd, access_flags,
+ dmah, attrs);
else
- mr = pd->device->ops.reg_user_mr(pd, addr, length,
- iova, access_flags, NULL);
+ mr = pd->device->ops.reg_user_mr(pd, addr, length, iova,
+ access_flags, dmah, NULL);
if (IS_ERR(mr))
return PTR_ERR(mr);
@@ -365,6 +374,10 @@ static int UVERBS_HANDLER(UVERBS_METHOD_REG_MR)(
mr->type = IB_MR_TYPE_USER;
mr->uobject = uobj;
atomic_inc(&pd->usecnt);
+ if (dmah) {
+ mr->dmah = dmah;
+ atomic_inc(&dmah->usecnt);
+ }
rdma_restrack_new(&mr->res, RDMA_RESTRACK_MR);
rdma_restrack_set_name(&mr->res, NULL);
rdma_restrack_add(&mr->res);
@@ -488,6 +501,10 @@ DECLARE_UVERBS_NAMED_METHOD(
UVERBS_OBJECT_PD,
UVERBS_ACCESS_READ,
UA_MANDATORY),
+ UVERBS_ATTR_IDR(UVERBS_ATTR_REG_MR_DMA_HANDLE,
+ UVERBS_OBJECT_DMAH,
+ UVERBS_ACCESS_READ,
+ UA_OPTIONAL),
UVERBS_ATTR_PTR_IN(UVERBS_ATTR_REG_MR_IOVA,
UVERBS_ATTR_TYPE(u64),
UA_MANDATORY),
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 75fde0fe99899..3a5f81402d2f8 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -2223,7 +2223,7 @@ struct ib_mr *ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
}
mr = pd->device->ops.reg_user_mr(pd, start, length, virt_addr,
- access_flags, NULL);
+ access_flags, NULL, NULL);
if (IS_ERR(mr))
return mr;
@@ -2262,6 +2262,7 @@ int ib_dereg_mr_user(struct ib_mr *mr, struct ib_udata *udata)
{
struct ib_pd *pd = mr->pd;
struct ib_dm *dm = mr->dm;
+ struct ib_dmah *dmah = mr->dmah;
struct ib_sig_attrs *sig_attrs = mr->sig_attrs;
int ret;
@@ -2272,6 +2273,8 @@ int ib_dereg_mr_user(struct ib_mr *mr, struct ib_udata *udata)
atomic_dec(&pd->usecnt);
if (dm)
atomic_dec(&dm->usecnt);
+ if (dmah)
+ atomic_dec(&dmah->usecnt);
kfree(sig_attrs);
}
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 3a627acb82ce1..37c2bc3bdba5e 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -4235,6 +4235,7 @@ static struct ib_mr *__bnxt_re_user_reg_mr(struct ib_pd *ib_pd, u64 length, u64
struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
u64 virt_addr, int mr_access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
@@ -4242,6 +4243,9 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
struct ib_umem *umem;
struct ib_mr *ib_mr;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
umem = ib_umem_get(&rdev->ibdev, start, length, mr_access_flags);
if (IS_ERR(umem))
return ERR_CAST(umem);
@@ -4255,6 +4259,7 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
struct ib_mr *bnxt_re_reg_user_mr_dmabuf(struct ib_pd *ib_pd, u64 start,
u64 length, u64 virt_addr, int fd,
int mr_access_flags,
+ struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
@@ -4263,6 +4268,9 @@ struct ib_mr *bnxt_re_reg_user_mr_dmabuf(struct ib_pd *ib_pd, u64 start,
struct ib_umem *umem;
struct ib_mr *ib_mr;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
umem_dmabuf = ib_umem_dmabuf_get_pinned(&rdev->ibdev, start, length,
fd, mr_access_flags);
if (IS_ERR(umem_dmabuf))
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.h b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
index 22c9eb8e9cfc3..fe00ab691a518 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.h
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
@@ -258,10 +258,12 @@ struct ib_mw *bnxt_re_alloc_mw(struct ib_pd *ib_pd, enum ib_mw_type type,
int bnxt_re_dealloc_mw(struct ib_mw *mw);
struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int mr_access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
struct ib_mr *bnxt_re_reg_user_mr_dmabuf(struct ib_pd *ib_pd, u64 start,
u64 length, u64 virt_addr,
int fd, int mr_access_flags,
+ struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs);
int bnxt_re_alloc_ucontext(struct ib_ucontext *ctx, struct ib_udata *udata);
void bnxt_re_dealloc_ucontext(struct ib_ucontext *context);
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
index 5b3007acaa1f7..e17c1252536bc 100644
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -1006,6 +1006,7 @@ int c4iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
void c4iw_dealloc(struct uld_ctx *ctx);
struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start,
u64 length, u64 virt, int acc,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc);
int c4iw_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata);
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index a2c71a1d93d5a..dcdfe250bdbeb 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -489,7 +489,8 @@ struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc)
}
struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
- u64 virt, int acc, struct ib_udata *udata)
+ u64 virt, int acc, struct ib_dmah *dmah,
+ struct ib_udata *udata)
{
__be64 *pages;
int shift, n, i;
@@ -501,6 +502,9 @@ struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
pr_debug("ib_pd %p\n", pd);
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
if (length == ~0ULL)
return ERR_PTR(-EINVAL);
diff --git a/drivers/infiniband/hw/efa/efa.h b/drivers/infiniband/hw/efa/efa.h
index 3d49c1db928e7..96f9c3bc98b2e 100644
--- a/drivers/infiniband/hw/efa/efa.h
+++ b/drivers/infiniband/hw/efa/efa.h
@@ -167,10 +167,12 @@ int efa_create_cq_umem(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
struct ib_umem *umem, struct uverbs_attr_bundle *attrs);
struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
struct ib_mr *efa_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 start,
u64 length, u64 virt_addr,
int fd, int access_flags,
+ struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs);
int efa_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
int efa_get_port_immutable(struct ib_device *ibdev, u32 port_num,
diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c
index 0f68aec128834..886923d5fe506 100644
--- a/drivers/infiniband/hw/efa/efa_verbs.c
+++ b/drivers/infiniband/hw/efa/efa_verbs.c
@@ -1765,6 +1765,7 @@ static int efa_register_mr(struct ib_pd *ibpd, struct efa_mr *mr, u64 start,
struct ib_mr *efa_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 start,
u64 length, u64 virt_addr,
int fd, int access_flags,
+ struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs)
{
struct efa_dev *dev = to_edev(ibpd->device);
@@ -1772,6 +1773,11 @@ struct ib_mr *efa_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 start,
struct efa_mr *mr;
int err;
+ if (dmah) {
+ err = -EOPNOTSUPP;
+ goto err_out;
+ }
+
mr = efa_alloc_mr(ibpd, access_flags, &attrs->driver_udata);
if (IS_ERR(mr)) {
err = PTR_ERR(mr);
@@ -1804,12 +1810,18 @@ struct ib_mr *efa_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 start,
struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct efa_dev *dev = to_edev(ibpd->device);
struct efa_mr *mr;
int err;
+ if (dmah) {
+ err = -EOPNOTSUPP;
+ goto err_out;
+ }
+
mr = efa_alloc_mr(ibpd, access_flags, udata);
if (IS_ERR(mr)) {
err = PTR_ERR(mr);
diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.c b/drivers/infiniband/hw/erdma/erdma_verbs.c
index ec0ad40860668..94c211df09d84 100644
--- a/drivers/infiniband/hw/erdma/erdma_verbs.c
+++ b/drivers/infiniband/hw/erdma/erdma_verbs.c
@@ -1200,13 +1200,17 @@ int erdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
}
struct ib_mr *erdma_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
- u64 virt, int access, struct ib_udata *udata)
+ u64 virt, int access, struct ib_dmah *dmah,
+ struct ib_udata *udata)
{
struct erdma_mr *mr = NULL;
struct erdma_dev *dev = to_edev(ibpd->device);
u32 stag;
int ret;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
if (!len || len > dev->attrs.max_mr_size)
return ERR_PTR(-EINVAL);
diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.h b/drivers/infiniband/hw/erdma/erdma_verbs.h
index f9408ccc8bad0..ef411b81fbd78 100644
--- a/drivers/infiniband/hw/erdma/erdma_verbs.h
+++ b/drivers/infiniband/hw/erdma/erdma_verbs.h
@@ -452,7 +452,8 @@ int erdma_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
void erdma_disassociate_ucontext(struct ib_ucontext *ibcontext);
int erdma_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
struct ib_mr *erdma_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
- u64 virt, int access, struct ib_udata *udata);
+ u64 virt, int access, struct ib_dmah *dmah,
+ struct ib_udata *udata);
struct ib_mr *erdma_get_dma_mr(struct ib_pd *ibpd, int rights);
int erdma_dereg_mr(struct ib_mr *ibmr, struct ib_udata *data);
int erdma_mmap(struct ib_ucontext *ctx, struct vm_area_struct *vma);
diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h
index 25f77b1fa7738..78ee04a48a74a 100644
--- a/drivers/infiniband/hw/hns/hns_roce_device.h
+++ b/drivers/infiniband/hw/hns/hns_roce_device.h
@@ -1219,6 +1219,7 @@ int hns_roce_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata);
struct ib_mr *hns_roce_get_dma_mr(struct ib_pd *pd, int acc);
struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
struct ib_mr *hns_roce_rereg_user_mr(struct ib_mr *mr, int flags, u64 start,
u64 length, u64 virt_addr,
diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c
index ebef93559225c..0f037e5455205 100644
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c
@@ -231,12 +231,18 @@ struct ib_mr *hns_roce_get_dma_mr(struct ib_pd *pd, int acc)
struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct hns_roce_dev *hr_dev = to_hr_dev(pd->device);
struct hns_roce_mr *mr;
int ret;
+ if (dmah) {
+ ret = -EOPNOTSUPP;
+ goto err_out;
+ }
+
mr = kzalloc(sizeof(*mr), GFP_KERNEL);
if (!mr) {
ret = -ENOMEM;
diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c
index 1e8c92826de22..da5a41b275d83 100644
--- a/drivers/infiniband/hw/irdma/verbs.c
+++ b/drivers/infiniband/hw/irdma/verbs.c
@@ -3013,10 +3013,12 @@ static int irdma_reg_user_mr_type_cq(struct irdma_mem_reg_req req,
* @len: length of mr
* @virt: virtual address
* @access: access of mr
+ * @dmah: dma handle
* @udata: user data
*/
static struct ib_mr *irdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 len,
u64 virt, int access,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
#define IRDMA_MEM_REG_MIN_REQ_LEN offsetofend(struct irdma_mem_reg_req, sq_pages)
@@ -3026,6 +3028,9 @@ static struct ib_mr *irdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 len,
struct irdma_mr *iwmr = NULL;
int err;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size)
return ERR_PTR(-EINVAL);
@@ -3085,6 +3090,7 @@ static struct ib_mr *irdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 len,
static struct ib_mr *irdma_reg_user_mr_dmabuf(struct ib_pd *pd, u64 start,
u64 len, u64 virt,
int fd, int access,
+ struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs)
{
struct irdma_device *iwdev = to_iwdev(pd->device);
@@ -3092,6 +3098,9 @@ static struct ib_mr *irdma_reg_user_mr_dmabuf(struct ib_pd *pd, u64 start,
struct irdma_mr *iwmr;
int err;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size)
return ERR_PTR(-EINVAL);
diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h
index 369825fdeff86..60a53f1958cfa 100644
--- a/drivers/infiniband/hw/mana/mana_ib.h
+++ b/drivers/infiniband/hw/mana/mana_ib.h
@@ -632,6 +632,7 @@ struct ib_mr *mana_ib_get_dma_mr(struct ib_pd *ibpd, int access_flags);
struct ib_mr *mana_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 iova, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
int mana_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
@@ -721,5 +722,6 @@ int mana_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
struct ib_mr *mana_ib_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 start, u64 length,
u64 iova, int fd, int mr_access_flags,
+ struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs);
#endif
diff --git a/drivers/infiniband/hw/mana/mr.c b/drivers/infiniband/hw/mana/mr.c
index 6d974d0a84003..55701046ffba1 100644
--- a/drivers/infiniband/hw/mana/mr.c
+++ b/drivers/infiniband/hw/mana/mr.c
@@ -106,6 +106,7 @@ static int mana_ib_gd_destroy_mr(struct mana_ib_dev *dev, u64 mr_handle)
struct ib_mr *mana_ib_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 length,
u64 iova, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct mana_ib_pd *pd = container_of(ibpd, struct mana_ib_pd, ibpd);
@@ -116,6 +117,9 @@ struct ib_mr *mana_ib_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 length,
u64 dma_region_handle;
int err;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
ibdev_dbg(ibdev,
@@ -188,6 +192,7 @@ struct ib_mr *mana_ib_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 length,
struct ib_mr *mana_ib_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 start, u64 length,
u64 iova, int fd, int access_flags,
+ struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs)
{
struct mana_ib_pd *pd = container_of(ibpd, struct mana_ib_pd, ibpd);
@@ -199,6 +204,9 @@ struct ib_mr *mana_ib_reg_user_mr_dmabuf(struct ib_pd *ibpd, u64 start, u64 leng
u64 dma_region_handle;
int err;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
access_flags &= ~IB_ACCESS_OPTIONAL;
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index f53b1846594c8..5df5b955114ee 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -759,6 +759,7 @@ int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
struct ib_umem *umem);
struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
int mlx4_ib_dereg_mr(struct ib_mr *mr, struct ib_udata *udata);
int mlx4_ib_alloc_mw(struct ib_mw *mw, struct ib_udata *udata);
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c
index e77645a673fbe..94464f1694d9f 100644
--- a/drivers/infiniband/hw/mlx4/mr.c
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -139,6 +139,7 @@ static struct ib_umem *mlx4_get_umem_mr(struct ib_device *device, u64 start,
struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct mlx4_ib_dev *dev = to_mdev(pd->device);
@@ -147,6 +148,9 @@ struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
int err;
int n;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
mr = kzalloc(sizeof(*mr), GFP_KERNEL);
if (!mr)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index ff6026d2ed7c7..dfd231333509d 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -1370,10 +1370,12 @@ int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc);
struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
struct ib_mr *mlx5_ib_reg_user_mr_dmabuf(struct ib_pd *pd, u64 start,
u64 length, u64 virt_addr,
int fd, int access_flags,
+ struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs);
int mlx5_ib_advise_mr(struct ib_pd *pd,
enum ib_uverbs_advise_mr_advice advice,
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 555d5ef37ef21..c47d7e3b3ecbe 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -1565,13 +1565,14 @@ static struct ib_mr *create_user_odp_mr(struct ib_pd *pd, u64 start, u64 length,
struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 iova, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct mlx5_ib_dev *dev = to_mdev(pd->device);
struct ib_umem *umem;
int err;
- if (!IS_ENABLED(CONFIG_INFINIBAND_USER_MEM))
+ if (!IS_ENABLED(CONFIG_INFINIBAND_USER_MEM) || dmah)
return ERR_PTR(-EOPNOTSUPP);
mlx5_ib_dbg(dev, "start 0x%llx, iova 0x%llx, length 0x%llx, access_flags 0x%x\n",
@@ -1725,6 +1726,7 @@ reg_user_mr_dmabuf_by_data_direct(struct ib_pd *pd, u64 offset,
struct ib_mr *mlx5_ib_reg_user_mr_dmabuf(struct ib_pd *pd, u64 offset,
u64 length, u64 virt_addr,
int fd, int access_flags,
+ struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs)
{
struct mlx5_ib_dev *dev = to_mdev(pd->device);
@@ -1732,7 +1734,7 @@ struct ib_mr *mlx5_ib_reg_user_mr_dmabuf(struct ib_pd *pd, u64 offset,
int err;
if (!IS_ENABLED(CONFIG_INFINIBAND_USER_MEM) ||
- !IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING))
+ !IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING) || dmah)
return ERR_PTR(-EOPNOTSUPP);
if (uverbs_attr_is_valid(attrs, MLX5_IB_ATTR_REG_DMABUF_MR_ACCESS_FLAGS)) {
@@ -1939,7 +1941,7 @@ struct ib_mr *mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
*/
recreate:
return mlx5_ib_reg_user_mr(new_pd, start, length, iova,
- new_access_flags, udata);
+ new_access_flags, NULL, udata);
}
static int
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 6a1e2e79ddc31..dd572d76866c2 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -825,7 +825,8 @@ static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc)
}
static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
- u64 virt, int acc, struct ib_udata *udata)
+ u64 virt, int acc, struct ib_dmah *dmah,
+ struct ib_udata *udata)
{
struct mthca_dev *dev = to_mdev(pd->device);
struct ib_block_iter biter;
@@ -838,6 +839,9 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
int err = 0;
int write_mtt_size;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
if (udata->inlen < sizeof ucmd) {
if (!context->reg_mr_warned) {
mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n",
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index 979de8f8df148..46d911fd38dee 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -847,13 +847,17 @@ static void build_user_pbes(struct ocrdma_dev *dev, struct ocrdma_mr *mr)
}
struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
- u64 usr_addr, int acc, struct ib_udata *udata)
+ u64 usr_addr, int acc, struct ib_dmah *dmah,
+ struct ib_udata *udata)
{
int status = -ENOMEM;
struct ocrdma_dev *dev = get_ocrdma_dev(ibpd->device);
struct ocrdma_mr *mr;
struct ocrdma_pd *pd;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
pd = get_ocrdma_pd(ibpd);
if (acc & IB_ACCESS_REMOTE_WRITE && !(acc & IB_ACCESS_LOCAL_WRITE))
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
index 0644346d8d988..6c5c3755b8a9c 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
@@ -98,7 +98,8 @@ int ocrdma_post_srq_recv(struct ib_srq *, const struct ib_recv_wr *,
int ocrdma_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata);
struct ib_mr *ocrdma_get_dma_mr(struct ib_pd *, int acc);
struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *, u64 start, u64 length,
- u64 virt, int acc, struct ib_udata *);
+ u64 virt, int acc, struct ib_dmah *dmah,
+ struct ib_udata *);
struct ib_mr *ocrdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
u32 max_num_sg);
int ocrdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 568a5b18803fc..ab9bf09229792 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -2953,13 +2953,17 @@ static int init_mr_info(struct qedr_dev *dev, struct mr_info *info,
}
struct ib_mr *qedr_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
- u64 usr_addr, int acc, struct ib_udata *udata)
+ u64 usr_addr, int acc, struct ib_dmah *dmah,
+ struct ib_udata *udata)
{
struct qedr_dev *dev = get_qedr_dev(ibpd->device);
struct qedr_mr *mr;
struct qedr_pd *pd;
int rc = -ENOMEM;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
pd = get_qedr_pd(ibpd);
DP_DEBUG(dev, QEDR_MSG_MR,
"qedr_register user mr pd = %d start = %lld, len = %lld, usr_addr = %lld, acc = %d\n",
diff --git a/drivers/infiniband/hw/qedr/verbs.h b/drivers/infiniband/hw/qedr/verbs.h
index 5731458abb068..62420a15101b6 100644
--- a/drivers/infiniband/hw/qedr/verbs.h
+++ b/drivers/infiniband/hw/qedr/verbs.h
@@ -79,7 +79,8 @@ int qedr_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata);
struct ib_mr *qedr_get_dma_mr(struct ib_pd *, int acc);
struct ib_mr *qedr_reg_user_mr(struct ib_pd *, u64 start, u64 length,
- u64 virt, int acc, struct ib_udata *);
+ u64 virt, int acc, struct ib_dmah *dmah,
+ struct ib_udata *);
int qedr_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
int sg_nents, unsigned int *sg_offset);
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
index 217af34e82b3c..ae5df96589d93 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
@@ -592,6 +592,7 @@ int usnic_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata)
struct ib_mr *usnic_ib_reg_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct usnic_ib_mr *mr;
@@ -600,6 +601,9 @@ struct ib_mr *usnic_ib_reg_mr(struct ib_pd *pd, u64 start, u64 length,
usnic_dbg("start 0x%llx va 0x%llx length 0x%llx\n", start,
virt_addr, length);
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
mr = kzalloc(sizeof(*mr), GFP_KERNEL);
if (!mr)
return ERR_PTR(-ENOMEM);
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.h b/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
index 53f53f2d53be0..e3031ac324881 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
+++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
@@ -60,6 +60,7 @@ int usnic_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
int usnic_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata);
struct ib_mr *usnic_ib_reg_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
int usnic_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
int usnic_ib_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata);
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
index e80848bfb3bdb..ec7a00c8285b2 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
@@ -104,12 +104,14 @@ struct ib_mr *pvrdma_get_dma_mr(struct ib_pd *pd, int acc)
* @length: length of region
* @virt_addr: I/O virtual address
* @access_flags: access flags for memory region
+ * @dmah: dma handle
* @udata: user data
*
* @return: ib_mr pointer on success, otherwise returns an errno.
*/
struct ib_mr *pvrdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct pvrdma_dev *dev = to_vdev(pd->device);
@@ -121,6 +123,9 @@ struct ib_mr *pvrdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
struct pvrdma_cmd_create_mr_resp *resp = &rsp.create_mr_resp;
int ret, npages;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
if (length == 0 || length > dev->dsr->caps.max_mr_size) {
dev_warn(&dev->pdev->dev, "invalid mem region length\n");
return ERR_PTR(-EINVAL);
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
index fd47b0b1df5ca..603e5a9311eb4 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
@@ -366,6 +366,7 @@ int pvrdma_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
struct ib_mr *pvrdma_get_dma_mr(struct ib_pd *pd, int acc);
struct ib_mr *pvrdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
int pvrdma_dereg_mr(struct ib_mr *mr, struct ib_udata *udata);
struct ib_mr *pvrdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c
index 5ed5cfc2b2803..86e482593a852 100644
--- a/drivers/infiniband/sw/rdmavt/mr.c
+++ b/drivers/infiniband/sw/rdmavt/mr.c
@@ -329,12 +329,14 @@ struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc)
* @length: length of region to register
* @virt_addr: associated virtual address
* @mr_access_flags: access flags for this memory region
+ * @dmah: dma handle
* @udata: unused by the driver
*
* Return: the memory region on success, otherwise returns an errno.
*/
struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int mr_access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct rvt_mr *mr;
@@ -343,6 +345,9 @@ struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
int n, m;
struct ib_mr *ret;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
if (length == 0)
return ERR_PTR(-EINVAL);
diff --git a/drivers/infiniband/sw/rdmavt/mr.h b/drivers/infiniband/sw/rdmavt/mr.h
index 44afe27317414..72dab48307b78 100644
--- a/drivers/infiniband/sw/rdmavt/mr.h
+++ b/drivers/infiniband/sw/rdmavt/mr.h
@@ -26,6 +26,7 @@ void rvt_mr_exit(struct rvt_dev_info *rdi);
struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc);
struct ib_mr *rvt_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int mr_access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
int rvt_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
struct ib_mr *rvt_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
index 2331e698a65b4..f48d6e1329540 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
@@ -1271,6 +1271,7 @@ static struct ib_mr *rxe_get_dma_mr(struct ib_pd *ibpd, int access)
static struct ib_mr *rxe_reg_user_mr(struct ib_pd *ibpd, u64 start,
u64 length, u64 iova, int access,
+ struct ib_dmah *dmah,
struct ib_udata *udata)
{
struct rxe_dev *rxe = to_rdev(ibpd->device);
@@ -1278,6 +1279,9 @@ static struct ib_mr *rxe_reg_user_mr(struct ib_pd *ibpd, u64 start,
struct rxe_mr *mr;
int err, cleanup_err;
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
if (access & ~RXE_ACCESS_SUPPORTED_MR) {
rxe_err_pd(pd, "access = %#x not supported (%#x)\n", access,
RXE_ACCESS_SUPPORTED_MR);
diff --git a/drivers/infiniband/sw/siw/siw_verbs.c b/drivers/infiniband/sw/siw/siw_verbs.c
index 2b2a7b8e93b01..35c3bde0d00af 100644
--- a/drivers/infiniband/sw/siw/siw_verbs.c
+++ b/drivers/infiniband/sw/siw/siw_verbs.c
@@ -1321,10 +1321,12 @@ int siw_dereg_mr(struct ib_mr *base_mr, struct ib_udata *udata)
* @len: len of MR
* @rnic_va: not used by siw
* @rights: MR access rights
+ * @dmah: dma handle
* @udata: user buffer to communicate STag and Key.
*/
struct ib_mr *siw_reg_user_mr(struct ib_pd *pd, u64 start, u64 len,
- u64 rnic_va, int rights, struct ib_udata *udata)
+ u64 rnic_va, int rights, struct ib_dmah *dmah,
+ struct ib_udata *udata)
{
struct siw_mr *mr = NULL;
struct siw_umem *umem = NULL;
@@ -1336,6 +1338,9 @@ struct ib_mr *siw_reg_user_mr(struct ib_pd *pd, u64 start, u64 len,
(void *)(uintptr_t)start, (void *)(uintptr_t)rnic_va,
(unsigned long long)len);
+ if (dmah)
+ return ERR_PTR(-EOPNOTSUPP);
+
if (atomic_inc_return(&sdev->num_mr) > SIW_MAX_MR) {
siw_dbg_pd(pd, "too many mr's\n");
rv = -ENOMEM;
diff --git a/drivers/infiniband/sw/siw/siw_verbs.h b/drivers/infiniband/sw/siw/siw_verbs.h
index 1f1a305540af4..e9f4463aecdc0 100644
--- a/drivers/infiniband/sw/siw/siw_verbs.h
+++ b/drivers/infiniband/sw/siw/siw_verbs.h
@@ -65,7 +65,8 @@ int siw_destroy_cq(struct ib_cq *base_cq, struct ib_udata *udata);
int siw_poll_cq(struct ib_cq *base_cq, int num_entries, struct ib_wc *wc);
int siw_req_notify_cq(struct ib_cq *base_cq, enum ib_cq_notify_flags flags);
struct ib_mr *siw_reg_user_mr(struct ib_pd *base_pd, u64 start, u64 len,
- u64 rnic_va, int rights, struct ib_udata *udata);
+ u64 rnic_va, int rights, struct ib_dmah *dmah,
+ struct ib_udata *udata);
struct ib_mr *siw_alloc_mr(struct ib_pd *base_pd, enum ib_mr_type mr_type,
u32 max_sge);
struct ib_mr *siw_get_dma_mr(struct ib_pd *base_pd, int rights);
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 9ad253687935b..6139223e92e4c 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1885,6 +1885,7 @@ struct ib_mr {
struct ib_dm *dm;
struct ib_sig_attrs *sig_attrs; /* only for IB_MR_TYPE_INTEGRITY MRs */
+ struct ib_dmah *dmah;
/*
* Implementation details of the RDMA core, don't use in drivers:
*/
@@ -2527,10 +2528,12 @@ struct ib_device_ops {
struct ib_mr *(*get_dma_mr)(struct ib_pd *pd, int mr_access_flags);
struct ib_mr *(*reg_user_mr)(struct ib_pd *pd, u64 start, u64 length,
u64 virt_addr, int mr_access_flags,
+ struct ib_dmah *dmah,
struct ib_udata *udata);
struct ib_mr *(*reg_user_mr_dmabuf)(struct ib_pd *pd, u64 offset,
u64 length, u64 virt_addr, int fd,
int mr_access_flags,
+ struct ib_dmah *dmah,
struct uverbs_attr_bundle *attrs);
struct ib_mr *(*rereg_user_mr)(struct ib_mr *mr, int flags, u64 start,
u64 length, u64 virt_addr,
diff --git a/include/uapi/rdma/ib_user_ioctl_cmds.h b/include/uapi/rdma/ib_user_ioctl_cmds.h
index 3bb72a259c29e..de6f5a94f1e33 100644
--- a/include/uapi/rdma/ib_user_ioctl_cmds.h
+++ b/include/uapi/rdma/ib_user_ioctl_cmds.h
@@ -311,6 +311,7 @@ enum uverbs_attrs_reg_dmabuf_mr_cmd_attr_ids {
enum uverbs_attrs_reg_mr_cmd_attr_ids {
UVERBS_ATTR_REG_MR_HANDLE,
UVERBS_ATTR_REG_MR_PD_HANDLE,
+ UVERBS_ATTR_REG_MR_DMA_HANDLE,
UVERBS_ATTR_REG_MR_IOVA,
UVERBS_ATTR_REG_MR_ADDR,
UVERBS_ATTR_REG_MR_LENGTH,
--
2.50.1
next prev parent reply other threads:[~2025-07-17 12:18 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-17 12:17 [PATCH rdma-next v2 0/8] RDMA support for DMA handle Leon Romanovsky
2025-07-17 12:17 ` [PATCH mlx5-next v2 2/8] net/mlx5: Expose IFC bits for TPH Leon Romanovsky
2025-07-17 12:17 ` [PATCH mlx5-next v2 3/8] net/mlx5: Add support for device steering tag Leon Romanovsky
2025-07-17 12:17 ` [PATCH rdma-next v2 4/8] IB/core: Add UVERBS_METHOD_REG_MR on the MR object Leon Romanovsky
2025-07-17 12:17 ` [PATCH rdma-next v2 5/8] RDMA/core: Introduce a DMAH object and its alloc/free APIs Leon Romanovsky
2025-07-17 12:17 ` [PATCH rdma-next v2 6/8] RDMA/mlx5: Add DMAH object support Leon Romanovsky
2025-07-17 12:17 ` Leon Romanovsky [this message]
2025-07-17 12:17 ` [PATCH rdma-next v2 8/8] RDMA/mlx5: Add DMAH support for reg_user_mr/reg_user_dmabuf_mr Leon Romanovsky
2025-07-22 13:53 ` [PATCH rdma-next v2 0/8] RDMA support for DMA handle Leon Romanovsky
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2ae1e628c0675db81f092cc00d3ad6fbf6139405.1752752567.git.leon@kernel.org \
--to=leon@kernel.org \
--cc=benve@cisco.com \
--cc=bharat@chelsio.com \
--cc=bmt@zurich.ibm.com \
--cc=bryan-bt.tan@broadcom.com \
--cc=chengyou@linux.alibaba.com \
--cc=dennis.dalessandro@cornelisnetworks.com \
--cc=edwards@nvidia.com \
--cc=huangjunxian6@hisilicon.com \
--cc=jgg@nvidia.com \
--cc=kaishen@linux.alibaba.com \
--cc=kalesh-anakkur.purayil@broadcom.com \
--cc=kotaranov@microsoft.com \
--cc=linux-rdma@vger.kernel.org \
--cc=longli@microsoft.com \
--cc=mkalderon@marvell.com \
--cc=mrgolin@amazon.com \
--cc=mustafa.ismail@intel.com \
--cc=neescoba@cisco.com \
--cc=selvin.xavier@broadcom.com \
--cc=tangchengchang@huawei.com \
--cc=tatyana.e.nikolova@intel.com \
--cc=vishnu.dasa@broadcom.com \
--cc=yishaih@nvidia.com \
--cc=zyjzyj2000@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).