Commit 4e8d683f authored by Rao Shoaib's avatar Rao Shoaib Committed by Jason Gunthorpe
Browse files

Introduce maximum WQE size to check limits 

Introduce maximum WQE size to impose limits on max SGE's and inline data

Link: https://lore.kernel.org/r/1578962480-17814-2-git-send-email-rao.shoaib@oracle.com


Signed-off-by: default avatarRao Shoaib <rao.shoaib@oracle.com>
Reviewed-by: default avatarJason Gunthorpe <jgg@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 0428c6ef

drivers/infiniband/sw/rxe/rxe_param.h

+6 −1
Original line number Original line Diff line number Diff line
@@ -34,6 +34,8 @@ 
#ifndef RXE_PARAM_H

#ifndef RXE_PARAM_H

#define RXE_PARAM_H

#define RXE_PARAM_H





#include <uapi/rdma/rdma_user_rxe.h>



static inline enum ib_mtu rxe_mtu_int_to_enum(int mtu)

static inline enum ib_mtu rxe_mtu_int_to_enum(int mtu)

{

{

	if (mtu < 256)

	if (mtu < 256)
@@ -64,7 +66,6 @@ enum rxe_device_param { 
	RXE_PAGE_SIZE_CAP		= 0xfffff000,

	RXE_PAGE_SIZE_CAP		= 0xfffff000,

	RXE_MAX_QP			= 0x10000,

	RXE_MAX_QP			= 0x10000,

	RXE_MAX_QP_WR			= 0x4000,

	RXE_MAX_QP_WR			= 0x4000,

	RXE_MAX_INLINE_DATA		= 400,

	RXE_DEVICE_CAP_FLAGS		= IB_DEVICE_BAD_PKEY_CNTR

	RXE_DEVICE_CAP_FLAGS		= IB_DEVICE_BAD_PKEY_CNTR

					| IB_DEVICE_BAD_QKEY_CNTR

					| IB_DEVICE_BAD_QKEY_CNTR

					| IB_DEVICE_AUTO_PATH_MIG

					| IB_DEVICE_AUTO_PATH_MIG
@@ -77,6 +78,10 @@ enum rxe_device_param { 
					| IB_DEVICE_MEM_MGT_EXTENSIONS

					| IB_DEVICE_MEM_MGT_EXTENSIONS

					| IB_DEVICE_ALLOW_USER_UNREG,

					| IB_DEVICE_ALLOW_USER_UNREG,

	RXE_MAX_SGE			= 32,

	RXE_MAX_SGE			= 32,

	RXE_MAX_WQE_SIZE		= sizeof(struct rxe_send_wqe) +

					  sizeof(struct ib_sge) * RXE_MAX_SGE,

	RXE_MAX_INLINE_DATA		= RXE_MAX_WQE_SIZE -

					  sizeof(struct rxe_send_wqe),

	RXE_MAX_SGE_RD			= 32,

	RXE_MAX_SGE_RD			= 32,

	RXE_MAX_CQ			= 16384,

	RXE_MAX_CQ			= 16384,

	RXE_MAX_LOG_CQE			= 15,

	RXE_MAX_LOG_CQE			= 15,