From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 7CBF0A00BE; Wed, 30 Oct 2019 13:26:31 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id B5F211C0AF; Wed, 30 Oct 2019 13:26:17 +0100 (CET) Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by dpdk.org (Postfix) with ESMTP id 3E17F1C045; Wed, 30 Oct 2019 13:26:09 +0100 (CET) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 22A6C2007C1; Wed, 30 Oct 2019 13:26:09 +0100 (CET) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id C13FE200473; Wed, 30 Oct 2019 13:26:05 +0100 (CET) Received: from GDB1.ap.freescale.net (gdb1.ap.freescale.net [10.232.132.179]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 9D914402F0; Wed, 30 Oct 2019 20:26:01 +0800 (SGT) From: Nipun Gupta To: dev@dpdk.org Cc: thomas@monjalon.net, ferruh.yigit@intel.com, hemant.agrawal@nxp.com, sachin.saxena@nxp.com, stable@dpdk.org, Nipun Gupta Date: Wed, 30 Oct 2019 17:39:49 +0530 Message-Id: <20191030120955.26904-4-nipun.gupta@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191030120955.26904-1-nipun.gupta@nxp.com> References: <20191011054657.21931-1-nipun.gupta@nxp.com> <20191030120955.26904-1-nipun.gupta@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Subject: [dpdk-dev] [PATCH 3/9 v3] common/dpaax: fallback to check separate memory node for VM X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" In Virtual Machine the memory node in the device tree is at '/proc/device-tree/memory/reg' which is separate from the memory node path on the host. This patch enables check on both the paths. Fixes: 2f3d633aa593 ("common/dpaax: add library for PA/VA translation table") Cc: stable@dpdk.org Signed-off-by: Nipun Gupta --- drivers/common/dpaax/dpaax_iova_table.c | 7 +++++-- drivers/common/dpaax/dpaax_iova_table.h | 2 ++ 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/common/dpaax/dpaax_iova_table.c b/drivers/common/dpaax/dpaax_iova_table.c index 43c9c72e6..98b076e09 100644 --- a/drivers/common/dpaax/dpaax_iova_table.c +++ b/drivers/common/dpaax/dpaax_iova_table.c @@ -68,9 +68,12 @@ read_memory_node(unsigned int *count) *count = 0; ret = glob(MEM_NODE_PATH_GLOB, 0, NULL, &result); + if (ret != 0) + ret = glob(MEM_NODE_PATH_GLOB_VM, 0, NULL, &result); + if (ret != 0) { - DPAAX_DEBUG("Unable to glob device-tree memory node: (%s)(%d)", - MEM_NODE_PATH_GLOB, ret); + DPAAX_DEBUG("Unable to glob device-tree memory node (err: %d)", + ret); goto out; } diff --git a/drivers/common/dpaax/dpaax_iova_table.h b/drivers/common/dpaax/dpaax_iova_table.h index 138827e7b..fef97f6dd 100644 --- a/drivers/common/dpaax/dpaax_iova_table.h +++ b/drivers/common/dpaax/dpaax_iova_table.h @@ -45,6 +45,8 @@ extern struct dpaax_iova_table *dpaax_iova_table_p; * is SoC dependent, or even Uboot fixup dependent. */ #define MEM_NODE_PATH_GLOB "/proc/device-tree/memory[@0-9]*/reg" +/* For Virtual Machines memory node is at different path (below) */ +#define MEM_NODE_PATH_GLOB_VM "/proc/device-tree/memory/reg" /* Device file should be multiple of 16 bytes, each containing 8 byte of addr * and its length. Assuming max of 5 entries. */ -- 2.17.1