On 20/09/2012 22:30, Or Gerlitz wrote:
IB_QPT_RAW_PACKET allows applications to build a complete packet,
including L2 headers, when sending; on the receive side, the HW will
not strip any headers.
Hi Roland,
I happily saw that you've finally picked the libmlx4 patches to support
RAW QP, so we're making progress... any reason not to pick this series?
Or.
This QP type is designed for userspace direct access to Ethernet; for
example by applications that do TCP/IP themselves. Only processes
with the NET_RAW capability are allowed to create raw packet QPs (the
name "raw packet QP" is supposed to suggest an analogy to AF_PACKET /
SOL_RAW sockets).
Signed-off-by: Or Gerlitz <[email protected]>
---
include/infiniband/verbs.h | 3 ++-
man/ibv_create_qp.3 | 2 +-
man/ibv_modify_qp.3 | 10 ++++++++++
3 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/include/infiniband/verbs.h b/include/infiniband/verbs.h
index 6acfc81..8ed8a66 100644
--- a/include/infiniband/verbs.h
+++ b/include/infiniband/verbs.h
@@ -399,7 +399,8 @@ struct ibv_srq_init_attr {
enum ibv_qp_type {
IBV_QPT_RC = 2,
IBV_QPT_UC,
- IBV_QPT_UD
+ IBV_QPT_UD,
+ IBV_QPT_RAW_PACKET = 8
};
struct ibv_qp_cap {
diff --git a/man/ibv_create_qp.3 b/man/ibv_create_qp.3
index 5301ad8..7feeab2 100644
--- a/man/ibv_create_qp.3
+++ b/man/ibv_create_qp.3
@@ -28,7 +28,7 @@ struct ibv_cq *send_cq; /* CQ to be
associated with the Send Que
struct ibv_cq *recv_cq; /* CQ to be associated with the
Receive Queue (RQ) */
struct ibv_srq *srq; /* SRQ handle if QP is to be
associated with an SRQ, otherwise NULL */
struct ibv_qp_cap cap; /* QP capabilities */
-enum ibv_qp_type qp_type; /* QP Transport Service Type:
IBV_QPT_RC, IBV_QPT_UC, or IBV_QPT_UD */
+enum ibv_qp_type qp_type; /* QP Transport Service Type:
IBV_QPT_RC, IBV_QPT_UC, IBV_QPT_UD or IBV_QPT_RAW_PACKET */
int sq_sig_all; /* If set, each Work Request (WR)
submitted to the SQ generates a completion entry */
.in -8
};
diff --git a/man/ibv_modify_qp.3 b/man/ibv_modify_qp.3
index 9eabcdf..cb3faaa 100644
--- a/man/ibv_modify_qp.3
+++ b/man/ibv_modify_qp.3
@@ -159,6 +159,16 @@ RTR \fB IBV_QP_STATE, IBV_QP_AV,
IBV_QP_PATH_MTU, \fR
RTS \fB IBV_QP_STATE, IBV_QP_SQ_PSN, IBV_QP_MAX_QP_RD_ATOMIC, \fR
\fB IBV_QP_RETRY_CNT, IBV_QP_RNR_RETRY, IBV_QP_TIMEOUT \fR
.fi
+.PP
+.nf
+For QP Transport Service Type \fB IBV_QPT_RAW_PACKET\fR:
+.sp
+Next state Required attributes
+\-\-\-\-\-\-\-\-\-\-
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
+Init \fB IBV_QP_STATE, IBV_QP_PORT\fR
+RTR \fB IBV_QP_STATE\fR
+RTS \fB IBV_QP_STATE\fR
+.fi
.SH "SEE ALSO"
.BR ibv_create_qp (3),
.BR ibv_destroy_qp (3),
--
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