[dpdk-dev] [PATCH v2] bus/pci: resolve multiple NICs address conflicts

From: "Wangyu (Turing Solution Development Dep)" <seven.wangyu@huawei.com>
To: "dev@dpdk.org" <dev@dpdk.org>
Cc: "ferruh.yigit@intel.com" <ferruh.yigit@intel.com>,
	Linuxarm <linuxarm@huawei.com>, "humin (Q)" <humin29@huawei.com>,
	"Liyuan (Larry)" <Larry.T@huawei.com>,
	dengxiaofeng <dengxiaofeng@huawei.com>
Subject: [dpdk-dev] [PATCH v2] bus/pci: resolve multiple NICs address conflicts
Date: Tue, 5 Nov 2019 07:26:13 +0000	[thread overview]
Message-ID: <78A93308629D474AA53B84C5879E84D24B102602@DGGEMM533-MBX.china.huawei.com> (raw)


NIC address conflicts on 64K pagesize when using multiple NICs,
as system will mmap 64K pagesize for NIC,
but dev->mem_resource[i].len is 16K.

Signed-off-by: Beard-627 <dengxiaofeng@huawei.com>
Signed-off-by: Eric wang <seven.wangyu@huawei.com>
Acked-by: Wei Hu <xavier.huwei@huawei.com>
Acked-by: Min Hu <humin29@huawei.com>
---
 drivers/bus/pci/linux/pci.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c index 43debaa..afaa68d 100644
--- a/drivers/bus/pci/linux/pci.c
+++ b/drivers/bus/pci/linux/pci.c
@@ -201,6 +201,11 @@
 		if (flags & IORESOURCE_MEM) {
 			dev->mem_resource[i].phys_addr = phys_addr;
 			dev->mem_resource[i].len = end_addr - phys_addr + 1;
+			if (dev->mem_resource[i].len <
+				(unsigned int)getpagesize())
+
+				dev->mem_resource[i].len =
+					(unsigned int)getpagesize();
 			/* not mapped for now */
 			dev->mem_resource[i].addr = NULL;
 		}
--
1.8.3.1
