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IB/rdmavt: Add data structures and routines for table driven post send

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Add flexibility for driver dependent operations in post send
because different drivers will have differing post send
operation support.

This includes data structure definitions to support a table
driven scheme along with the necessary validation routine
using the new table.

Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Jianxin Xiong <jianxin.xiong@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Mike Marciniszyn
2016-07-01 16:02:07 -07:00
committed by Doug Ledford
parent 71e68e3db8
commit afcf8f7647
3 changed files with 89 additions and 9 deletions
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3
include/rdma/rdma_vt.h
View File

@@ -351,6 +351,9 @@ struct rvt_dev_info {
/* Driver specific properties */
struct rvt_driver_params dparms;
/* post send table */
const struct rvt_operation_params *post_parms;
struct rvt_mregion __rcu *dma_mr;
struct rvt_lkey_table lkey_table;

28
include/rdma/rdmavt_qp.h
View File

@@ -228,11 +228,31 @@ struct rvt_ack_entry {
#define RC_QP_SCALING_INTERVAL 5
/*
* Variables prefixed with s_ are for the requester (sender).
* Variables prefixed with r_ are for the responder (receiver).
* Variables prefixed with ack_ are for responder replies.
#define RVT_OPERATION_PRIV 0x00000001
#define RVT_OPERATION_ATOMIC 0x00000002
#define RVT_OPERATION_ATOMIC_SGE 0x00000004
#define RVT_OPERATION_MAX (IB_WR_RESERVED10 + 1)
/**
* rvt_operation_params - op table entry
* @length - the length to copy into the swqe entry
* @qpt_support - a bit mask indicating QP type support
* @flags - RVT_OPERATION flags (see above)
*
* This supports table driven post send so that
* the driver can have differing an potentially
* different sets of operations.
*
**/
struct rvt_operation_params {
size_t length;
u32 qpt_support;
u32 flags;
};
/*
* Common variables are protected by both r_rq.lock and s_lock in that order
* which only happens in modify_qp() or changing the QP 'state'.
*/