Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7ce86409adcd2fda652b628173a66e905950ece1
Commit: 7ce86409adcd2fda652b628173a66e905950ece1
Parent: a81c994d5eef87ed77cb30d8343d6be296528b3f
Author: Sean Hefty <[EMAIL PROTECTED]>
AuthorDate: Wed Aug 8 15:51:13 2007 -0700
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Tue Oct 9 19:59:12 2007 -0700
RDMA/ucma: Allow user space to set service type
Export the ability to set the type of service to user space. Model
the interface after setsockopt.
Signed-off-by: Sean Hefty <[EMAIL PROTECTED]>
Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>
---
drivers/infiniband/core/ucma.c | 74 +++++++++++++++++++++++++++++++++++++++-
include/rdma/rdma_user_cm.h | 18 ++++++++++
2 files changed, 91 insertions(+), 1 deletions(-)
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 53b4c94..90d675a 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -792,6 +792,78 @@ out:
return ret;
}
+static int ucma_set_option_id(struct ucma_context *ctx, int optname,
+ void *optval, size_t optlen)
+{
+ int ret = 0;
+
+ switch (optname) {
+ case RDMA_OPTION_ID_TOS:
+ if (optlen != sizeof(u8)) {
+ ret = -EINVAL;
+ break;
+ }
+ rdma_set_service_type(ctx->cm_id, *((u8 *) optval));
+ break;
+ default:
+ ret = -ENOSYS;
+ }
+
+ return ret;
+}
+
+static int ucma_set_option_level(struct ucma_context *ctx, int level,
+ int optname, void *optval, size_t optlen)
+{
+ int ret;
+
+ switch (level) {
+ case RDMA_OPTION_ID:
+ ret = ucma_set_option_id(ctx, optname, optval, optlen);
+ break;
+ default:
+ ret = -ENOSYS;
+ }
+
+ return ret;
+}
+
+static ssize_t ucma_set_option(struct ucma_file *file, const char __user
*inbuf,
+ int in_len, int out_len)
+{
+ struct rdma_ucm_set_option cmd;
+ struct ucma_context *ctx;
+ void *optval;
+ int ret;
+
+ if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
+ return -EFAULT;
+
+ ctx = ucma_get_ctx(file, cmd.id);
+ if (IS_ERR(ctx))
+ return PTR_ERR(ctx);
+
+ optval = kmalloc(cmd.optlen, GFP_KERNEL);
+ if (!optval) {
+ ret = -ENOMEM;
+ goto out1;
+ }
+
+ if (copy_from_user(optval, (void __user *) (unsigned long) cmd.optval,
+ cmd.optlen)) {
+ ret = -EFAULT;
+ goto out2;
+ }
+
+ ret = ucma_set_option_level(ctx, cmd.level, cmd.optname, optval,
+ cmd.optlen);
+out2:
+ kfree(optval);
+out1:
+ ucma_put_ctx(ctx);
+ return ret;
+}
+
static ssize_t ucma_notify(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
@@ -936,7 +1008,7 @@ static ssize_t (*ucma_cmd_table[])(struct ucma_file *file,
[RDMA_USER_CM_CMD_INIT_QP_ATTR] = ucma_init_qp_attr,
[RDMA_USER_CM_CMD_GET_EVENT] = ucma_get_event,
[RDMA_USER_CM_CMD_GET_OPTION] = NULL,
- [RDMA_USER_CM_CMD_SET_OPTION] = NULL,
+ [RDMA_USER_CM_CMD_SET_OPTION] = ucma_set_option,
[RDMA_USER_CM_CMD_NOTIFY] = ucma_notify,
[RDMA_USER_CM_CMD_JOIN_MCAST] = ucma_join_multicast,
[RDMA_USER_CM_CMD_LEAVE_MCAST] = ucma_leave_multicast,
diff --git a/include/rdma/rdma_user_cm.h b/include/rdma/rdma_user_cm.h
index f632b0c..9749c1b 100644
--- a/include/rdma/rdma_user_cm.h
+++ b/include/rdma/rdma_user_cm.h
@@ -212,4 +212,22 @@ struct rdma_ucm_event_resp {
} param;
};
+/* Option levels */
+enum {
+ RDMA_OPTION_ID = 0
+};
+
+/* Option details */
+enum {
+ RDMA_OPTION_ID_TOS = 0
+};
+
+struct rdma_ucm_set_option {
+ __u64 optval;
+ __u32 id;
+ __u32 level;
+ __u32 optname;
+ __u32 optlen;
+};
+
#endif /* RDMA_USER_CM_H */
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
