diff options
| author |   Sean Hefty <sean.hefty@intel.com> | 2011-08-02 11:08:22 -0700 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2011-10-13 09:38:35 -0700 |
| commit | ef70044647b260cb6b7863f392384a06670d0b2a (patch) | |
| tree | 8f916d6155e93dfe02886e20c23fccb480aae5f2 /drivers/infiniband/core/cm_msgs.h | |
| parent | IB/cm: Update protocol to support XRC (diff) | |
| download | linux-dev-ef70044647b260cb6b7863f392384a06670d0b2a.tar.xz linux-dev-ef70044647b260cb6b7863f392384a06670d0b2a.zip | |
IB/cm: Update XRC support based on XRC annex errata
The XRC annex was updated to have XRC behave more like RD. Specifically,
the XRC TGT QPN moves from the local QPN to local EECN field. Lookup of
SRQN is done using the REQ/REP protocol.
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 | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/infiniband/core/cm_msgs.h b/drivers/infiniband/core/cm_msgs.h index 3ade32025974..505db2a59e7f 100644 --- a/drivers/infiniband/core/cm_msgs.h +++ b/drivers/infiniband/core/cm_msgs.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2004 Intel Corporation. All rights reserved. + * Copyright (c) 2004, 2011 Intel Corporation. All rights reserved. * Copyright (c) 2004 Topspin Corporation. All rights reserved. * Copyright (c) 2004 Voltaire Corporation. All rights reserved. * @@ -538,6 +538,23 @@ static inline void cm_rep_set_local_qpn(struct cm_rep_msg *rep_msg, __be32 qpn) (be32_to_cpu(rep_msg->offset12) & 0x000000FF)); } +static inline __be32 cm_rep_get_local_eecn(struct cm_rep_msg *rep_msg) +{ + return cpu_to_be32(be32_to_cpu(rep_msg->offset16) >> 8); +} + +static inline void cm_rep_set_local_eecn(struct cm_rep_msg *rep_msg, __be32 eecn) +{ + rep_msg->offset16 = cpu_to_be32((be32_to_cpu(eecn) << 8) | + (be32_to_cpu(rep_msg->offset16) & 0x000000FF)); +} + +static inline __be32 cm_rep_get_qpn(struct cm_rep_msg *rep_msg, enum ib_qp_type qp_type) +{ + return (qp_type == IB_QPT_XRC_INI) ? + cm_rep_get_local_eecn(rep_msg) : cm_rep_get_local_qpn(rep_msg); +} + static inline __be32 cm_rep_get_starting_psn(struct cm_rep_msg *rep_msg) { return cpu_to_be32(be32_to_cpu(rep_msg->offset20) >> 8); |