diff options
| author | Sean Hefty <sean.hefty@intel.com> | 2013-05-29 10:09:32 -0700 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2013-06-20 23:35:44 -0700 |
| commit | 209cf2a751f9ff2a516102339e54fcac0176fa78 (patch) | |
| tree | 0af9e0cde64256311f60986cd55463af44bfcf57 /drivers/infiniband | |
| parent | eebe4c3a62aadb64ba30bde97b96d656e369d934 (diff) | |
| download | linux-209cf2a751f9ff2a516102339e54fcac0176fa78.tar.bz2 | |
RDMA/ucma: Allow user space to pass AF_IB into resolve
Allow user space applications to call resolve_addr using AF_IB. To
support sockaddr_ib, we need to define a new structure capable of
handling the larger address size.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/ucma.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 22ed97ef7da3..00ce99044a48 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -577,6 +577,33 @@ static ssize_t ucma_resolve_ip(struct ucma_file *file, return ret; } +static ssize_t ucma_resolve_addr(struct ucma_file *file, + const char __user *inbuf, + int in_len, int out_len) +{ + struct rdma_ucm_resolve_addr cmd; + struct sockaddr *src, *dst; + struct ucma_context *ctx; + int ret; + + if (copy_from_user(&cmd, inbuf, sizeof(cmd))) + return -EFAULT; + + src = (struct sockaddr *) &cmd.src_addr; + dst = (struct sockaddr *) &cmd.dst_addr; + if (cmd.reserved || (cmd.src_size && (cmd.src_size != rdma_addr_size(src))) || + !cmd.dst_size || (cmd.dst_size != rdma_addr_size(dst))) + return -EINVAL; + + ctx = ucma_get_ctx(file, cmd.id); + if (IS_ERR(ctx)) + return PTR_ERR(ctx); + + ret = rdma_resolve_addr(ctx->cm_id, src, dst, cmd.timeout_ms); + ucma_put_ctx(ctx); + return ret; +} + static ssize_t ucma_resolve_route(struct ucma_file *file, const char __user *inbuf, int in_len, int out_len) @@ -1423,7 +1450,8 @@ static ssize_t (*ucma_cmd_table[])(struct ucma_file *file, [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_BIND] = ucma_bind + [RDMA_USER_CM_CMD_BIND] = ucma_bind, + [RDMA_USER_CM_CMD_RESOLVE_ADDR] = ucma_resolve_addr }; static ssize_t ucma_write(struct file *filp, const char __user *buf, |