diff options
| author | Sean Hefty <sean.hefty@intel.com> | 2011-05-13 10:46:20 -0700 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2011-10-13 09:37:55 -0700 |
| commit | d26a360b776d527429cf13300837711b0b2fde20 (patch) | |
| tree | 70462d3c1f74f18ac212960deebd1edba307530e /drivers/infiniband/core/cm_msgs.h | |
| parent | b93f3c18727634a2e847f067e549762d096921cf (diff) | |
IB/cm: Update protocol to support XRC
Update the REQ and REP messages to support XRC connection setup
according to the XRC Annex. Several existing fields must be set to 0 or
1 when connecting XRC QPs, and a reserved field is changed to an
extended transport type.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/core/cm_msgs.h')
| -rw-r--r-- | drivers/infiniband/core/cm_msgs.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/infiniband/core/cm_msgs.h b/drivers/infiniband/core/cm_msgs.h index 7e63c08f697c..3ade32025974 100644 --- a/drivers/infiniband/core/cm_msgs.h +++ b/drivers/infiniband/core/cm_msgs.h @@ -86,7 +86,7 @@ struct cm_req_msg { __be16 pkey; /* path MTU:4, RDC exists:1, RNR retry count:3. */ u8 offset50; - /* max CM Retries:4, SRQ:1, rsvd:3 */ + /* max CM Retries:4, SRQ:1, extended transport type:3 */ u8 offset51; __be16 primary_local_lid; @@ -175,6 +175,11 @@ static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg) switch(transport_type) { case 0: return IB_QPT_RC; case 1: return IB_QPT_UC; + case 3: + switch (req_msg->offset51 & 0x7) { + case 1: return IB_QPT_XRC_TGT; + default: return 0; + } default: return 0; } } @@ -188,6 +193,12 @@ static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg, req_msg->offset40) & 0xFFFFFFF9) | 0x2); 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; + break; default: req_msg->offset40 = cpu_to_be32(be32_to_cpu( req_msg->offset40) & |