Support user space binding to addresses using AF_IB. Since
sockaddr_ib is larger than sockaddr_in6, we need to define
a larger structure when binding using AF_IB. This time we
use sockaddr_storage to cover future cases.
Signed-off-by: Sean Hefty <sean.he...@intel.com>
---
drivers/infiniband/core/ucma.c | 27 ++++++++++++++++++++++++++-
include/rdma/rdma_user_cm.h | 10 +++++++++-
2 files changed, 35 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 950bd35..e2d8dcf 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -514,6 +514,30 @@ static ssize_t ucma_bind_ip(struct ucma_file *file, const
char __user *inbuf,
return ret;
}
+static ssize_t ucma_bind(struct ucma_file *file, const char __user *inbuf,
+ int in_len, int out_len)
+{
+ struct rdma_ucm_bind cmd;
+ struct sockaddr *addr;
+ struct ucma_context *ctx;
+ int ret;
+
+ if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+ return -EFAULT;
+
+ addr = (struct sockaddr *) &cmd.addr;
+ if (cmd.reserved || !cmd.addr_size || (cmd.addr_size !=
rdma_addr_size(addr)))
+ return -EINVAL;
+
+ ctx = ucma_get_ctx(file, cmd.id);
+ if (IS_ERR(ctx))
+ return PTR_ERR(ctx);
+
+ ret = rdma_bind_addr(ctx->cm_id, addr);
+ ucma_put_ctx(ctx);
+ return ret;
+}
+
static ssize_t ucma_resolve_ip(struct ucma_file *file,
const char __user *inbuf,
int in_len, int out_len)
@@ -1308,7 +1332,8 @@ static ssize_t (*ucma_cmd_table[])(struct ucma_file *file,
[RDMA_USER_CM_CMD_JOIN_IP_MCAST]= ucma_join_ip_multicast,
[RDMA_USER_CM_CMD_LEAVE_MCAST] = ucma_leave_multicast,
[RDMA_USER_CM_CMD_MIGRATE_ID] = ucma_migrate_id,
- [RDMA_USER_CM_CMD_QUERY] = ucma_query
+ [RDMA_USER_CM_CMD_QUERY] = ucma_query,
+ [RDMA_USER_CM_CMD_BIND] = ucma_bind
};
static ssize_t ucma_write(struct file *filp, const char __user *buf,
diff --git a/include/rdma/rdma_user_cm.h b/include/rdma/rdma_user_cm.h
index bbb724b..009b8da 100644
--- a/include/rdma/rdma_user_cm.h
+++ b/include/rdma/rdma_user_cm.h
@@ -62,7 +62,8 @@ enum {
RDMA_USER_CM_CMD_JOIN_IP_MCAST,
RDMA_USER_CM_CMD_LEAVE_MCAST,
RDMA_USER_CM_CMD_MIGRATE_ID,
- RDMA_USER_CM_CMD_QUERY
+ RDMA_USER_CM_CMD_QUERY,
+ RDMA_USER_CM_CMD_BIND
};
/*
@@ -101,6 +102,13 @@ struct rdma_ucm_bind_ip {
__u32 id;
};
+struct rdma_ucm_bind {
+ __u32 id;
+ __u16 addr_size;
+ __u16 reserved;
+ struct sockaddr_storage addr;
+};
+
struct rdma_ucm_resolve_ip {
struct sockaddr_in6 src_addr;
struct sockaddr_in6 dst_addr;
--
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