Allow the driver plug-in library to return additional data in the response
from ibv_cmd_resize_cq(). Also, allow the user library to pass additional
information to ib_modify_qp() and ib_modify_srq().
Signed-off-by: Ralph Campbell <[EMAIL PROTECTED]>
Index: src/linux-kernel/infiniband/include/rdma/ib_user_verbs.h
===================================================================
--- src/linux-kernel/infiniband/include/rdma/ib_user_verbs.h (revision 8843)
+++ src/linux-kernel/infiniband/include/rdma/ib_user_verbs.h (working copy)
@@ -275,6 +275,8 @@
struct ib_uverbs_resize_cq_resp {
__u32 cqe;
+ __u32 reserved;
+ __u64 driver_data[0];
};
struct ib_uverbs_poll_cq {
Index: src/linux-kernel/infiniband/include/rdma/ib_verbs.h
===================================================================
--- src/linux-kernel/infiniband/include/rdma/ib_verbs.h (revision 8843)
+++ src/linux-kernel/infiniband/include/rdma/ib_verbs.h (working copy)
@@ -911,7 +911,8 @@
struct ib_udata *udata);
int (*modify_srq)(struct ib_srq *srq,
struct ib_srq_attr *srq_attr,
- enum ib_srq_attr_mask
srq_attr_mask);
+ enum ib_srq_attr_mask
srq_attr_mask,
+ struct ib_udata *udata);
int (*query_srq)(struct ib_srq *srq,
struct ib_srq_attr *srq_attr);
int (*destroy_srq)(struct ib_srq *srq);
@@ -923,7 +924,8 @@
struct ib_udata *udata);
int (*modify_qp)(struct ib_qp *qp,
struct ib_qp_attr *qp_attr,
- int qp_attr_mask);
+ int qp_attr_mask,
+ struct ib_udata *udata);
int (*query_qp)(struct ib_qp *qp,
struct ib_qp_attr *qp_attr,
int qp_attr_mask,
Index: src/linux-kernel/infiniband/core/verbs.c
===================================================================
--- src/linux-kernel/infiniband/core/verbs.c (revision 8843)
+++ src/linux-kernel/infiniband/core/verbs.c (working copy)
@@ -231,7 +231,7 @@
struct ib_srq_attr *srq_attr,
enum ib_srq_attr_mask srq_attr_mask)
{
- return srq->device->modify_srq(srq, srq_attr, srq_attr_mask);
+ return srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL);
}
EXPORT_SYMBOL(ib_modify_srq);
@@ -547,7 +547,7 @@
struct ib_qp_attr *qp_attr,
int qp_attr_mask)
{
- return qp->device->modify_qp(qp, qp_attr, qp_attr_mask);
+ return qp->device->modify_qp(qp, qp_attr, qp_attr_mask, NULL);
}
EXPORT_SYMBOL(ib_modify_qp);
Index: src/linux-kernel/infiniband/core/uverbs_cmd.c
===================================================================
--- src/linux-kernel/infiniband/core/uverbs_cmd.c (revision 8843)
+++ src/linux-kernel/infiniband/core/uverbs_cmd.c (working copy)
@@ -829,7 +829,6 @@
err_copy:
idr_remove_uobj(&ib_uverbs_cq_idr, &obj->uobject);
-
err_free:
ib_destroy_cq(cq);
@@ -1264,6 +1263,7 @@
int out_len)
{
struct ib_uverbs_modify_qp cmd;
+ struct ib_udata udata;
struct ib_qp *qp;
struct ib_qp_attr *attr;
int ret;
@@ -1271,6 +1271,9 @@
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
+ INIT_UDATA(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd,
+ out_len);
+
attr = kmalloc(sizeof *attr, GFP_KERNEL);
if (!attr)
return -ENOMEM;
@@ -1327,7 +1330,7 @@
attr->alt_ah_attr.ah_flags = cmd.alt_dest.is_global ?
IB_AH_GRH : 0;
attr->alt_ah_attr.port_num = cmd.alt_dest.port_num;
- ret = ib_modify_qp(qp, attr, cmd.attr_mask);
+ ret = qp->device->modify_qp(qp, attr, cmd.attr_mask, &udata);
put_qp_read(qp);
@@ -2045,6 +2048,7 @@
int out_len)
{
struct ib_uverbs_modify_srq cmd;
+ struct ib_udata udata;
struct ib_srq *srq;
struct ib_srq_attr attr;
int ret;
@@ -2052,6 +2056,9 @@
if (copy_from_user(&cmd, buf, sizeof cmd))
return -EFAULT;
+ INIT_UDATA(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd,
+ out_len);
+
srq = idr_read_srq(cmd.srq_handle, file->ucontext);
if (!srq)
return -EINVAL;
@@ -2059,7 +2066,7 @@
attr.max_wr = cmd.max_wr;
attr.srq_limit = cmd.srq_limit;
- ret = ib_modify_srq(srq, &attr, cmd.attr_mask);
+ ret = srq->device->modify_srq(srq, &attr, cmd.attr_mask, &udata);
put_srq_read(srq);
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