[ofw] [PATCH] ib_qp_create_t - add max_inline

[Reuven Amitai]

Hi,
 
The patch below enable setting max_inline directly through
ib_qp_create_t.
I've already sent it (a month ago) and ABI breaking issue arose. Since
In the next release the ABI will be broken I resend it.
 
The user may specify in ib_qp_create_t the max size of inline messages
that he will send and the HCA will be prepared for that.
In case that the user specified max_inline exceed HCA limit,
ib_create_qp fails.
The HCA may set max_inline above user request (but not less) which can
be noticed using ib_query_qp
 
Thanks, Reuven.
 
 

Index: hw/mthca/user/mlnx_ual_qp.c

===================================================================

--- hw/mthca/user/mlnx_ual_qp.c     (revision 1094)

+++ hw/mthca/user/mlnx_ual_qp.c     (working copy)

@@ -120,7 +120,7 @@

      attr.cap.max_recv_wr          = p_create_attr->rq_depth;

      attr.cap.max_send_sge         = p_create_attr->sq_sge;

      attr.cap.max_recv_sge         = p_create_attr->rq_sge;

-     attr.cap.max_inline_data      = 0;              /* absent in IBAL
*/

+     attr.cap.max_inline_data      = p_create_attr->sq_max_inline;

      attr.qp_type                                          =
p_create_attr->qp_type;

      attr.sq_sig_all                                 =
p_create_attr->sq_signaled;

      

Index: inc/iba/ib_types.h

===================================================================

--- inc/iba/ib_types.h  (revision 1094)

+++ inc/iba/ib_types.h  (working copy)

@@ -9786,6 +9786,7 @@

 {

      ib_qp_type_t                  qp_type;

 

+     uint32_t                      sq_max_inline;

      uint32_t                      sq_depth;

      uint32_t                      rq_depth;

      uint32_t                      sq_sge;

@@ -9803,6 +9804,10 @@

 *    type

 *          Specifies the type of queue pair to create.

 *

+*    sq_max_inline

+*          Maximum payload that can be inlined directly in a WQE,
eliminating

+*          protection checks and additional DMA operations.

+*

 *    sq_depth

 *          Indicates the requested maximum number of work requests that
may be

 *          outstanding on the queue pair's send queue.  This value must
be less

 

 

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