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authorJason Gunthorpe <jgg@mellanox.com>2020-01-16 13:00:31 -0400
committerJason Gunthorpe <jgg@mellanox.com>2020-01-25 15:05:59 -0400
commit792a7c1f2e74bba878a1836cfbe9611f98576d3b (patch)
treeaaa439e6ff1fcc556393bce9b561aad54f297de2 /drivers/infiniband/core
parentIB/mlx5: Return the administrative GUID if exists (diff)
downloadlinux-dev-792a7c1f2e74bba878a1836cfbe9611f98576d3b.tar.xz
linux-dev-792a7c1f2e74bba878a1836cfbe9611f98576d3b.zip
RDMA/cm: Add accessors for CM_REQ transport_type
Access the two fields through wrappers, like all other fields, to make it clearer what is happening. Link: https://lore.kernel.org/r/20200116170037.30109-2-jgg@ziepe.ca Tested-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core')
-rw-r--r--drivers/infiniband/core/cm_msgs.h41
1 files changed, 29 insertions, 12 deletions
diff --git a/drivers/infiniband/core/cm_msgs.h b/drivers/infiniband/core/cm_msgs.h
index 23e3d0c6a67c..9af9a3212074 100644
--- a/drivers/infiniband/core/cm_msgs.h
+++ b/drivers/infiniband/core/cm_msgs.h
@@ -124,14 +124,37 @@ static inline void cm_req_set_remote_resp_timeout(struct cm_req_msg *req_msg,
0xFFFFFF07));
}
+static inline u8 cm_req_get_transport_type(struct cm_req_msg *req_msg)
+{
+ return (u8) ((be32_to_cpu(req_msg->offset40) & 0x06) >> 1);
+}
+
+static inline void cm_req_set_transport_type(struct cm_req_msg *req_msg, u8 val)
+{
+ req_msg->offset40 =
+ cpu_to_be32((be32_to_cpu(req_msg->offset40) & 0xFFFFFFF9) |
+ (val << 1));
+}
+
+static inline u8 cm_req_get_transport_type_ex(struct cm_req_msg *req_msg)
+{
+ return req_msg->offset51 & 0x7;
+}
+
+static inline void cm_req_set_transport_type_ex(struct cm_req_msg *req_msg,
+ u8 val)
+{
+ req_msg->offset51 = (req_msg->offset51 & 0xF8) | val;
+}
+
static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg)
{
- u8 transport_type = (u8) (be32_to_cpu(req_msg->offset40) & 0x06) >> 1;
+ u8 transport_type = cm_req_get_transport_type(req_msg);
switch(transport_type) {
case 0: return IB_QPT_RC;
case 1: return IB_QPT_UC;
case 3:
- switch (req_msg->offset51 & 0x7) {
+ switch (cm_req_get_transport_type_ex(req_msg)) {
case 1: return IB_QPT_XRC_TGT;
default: return 0;
}
@@ -144,20 +167,14 @@ static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg,
{
switch(qp_type) {
case IB_QPT_UC:
- req_msg->offset40 = cpu_to_be32((be32_to_cpu(
- req_msg->offset40) &
- 0xFFFFFFF9) | 0x2);
+ cm_req_set_transport_type(req_msg, 1);
break;
case IB_QPT_XRC_INI:
- req_msg->offset40 = cpu_to_be32((be32_to_cpu(
- req_msg->offset40) &
- 0xFFFFFFF9) | 0x6);
- req_msg->offset51 = (req_msg->offset51 & 0xF8) | 1;
+ cm_req_set_transport_type(req_msg, 3);
+ cm_req_set_transport_type_ex(req_msg, 1);
break;
default:
- req_msg->offset40 = cpu_to_be32(be32_to_cpu(
- req_msg->offset40) &
- 0xFFFFFFF9);
+ cm_req_set_transport_type(req_msg, 0);
}
}