lkml.org 
[lkml]   [2020]   [Jan]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 1/2] Introduce maximum WQE size to check limits
Date
From: Rao Shoaib <rao.shoaib@oracle.com>

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

Signed-off-by: Rao Shoaib <rao.shoaib@oracle.com>
---
drivers/infiniband/sw/rxe/rxe_param.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h
index 1b596fb..a0e4075 100644
--- a/drivers/infiniband/sw/rxe/rxe_param.h
+++ b/drivers/infiniband/sw/rxe/rxe_param.h
@@ -34,6 +34,8 @@
#ifndef 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)
{
if (mtu < 256)
@@ -68,7 +70,6 @@ enum rxe_device_param {
RXE_HW_VER = 0,
RXE_MAX_QP = 0x10000,
RXE_MAX_QP_WR = 0x4000,
- RXE_MAX_INLINE_DATA = 400,
RXE_DEVICE_CAP_FLAGS = IB_DEVICE_BAD_PKEY_CNTR
| IB_DEVICE_BAD_QKEY_CNTR
| IB_DEVICE_AUTO_PATH_MIG
@@ -80,6 +81,10 @@ enum rxe_device_param {
| IB_DEVICE_SRQ_RESIZE
| IB_DEVICE_MEM_MGT_EXTENSIONS,
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_CQ = 16384,
RXE_MAX_LOG_CQE = 15,
--
1.8.3.1
\
 
 \ /
  Last update: 2020-01-14 01:42    [W:0.072 / U:2.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site