* [dpdk-dev] [PATCH] bus/pci: resolve multiple NICs address conflicts
[not found] <1572680245-89705-1-git-send-email-dengxiaofeng@huawei.com>
@ 2019-11-04 6:31 ` Wangyu (Turing Solution Development Dep)
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From: Wangyu (Turing Solution Development Dep) @ 2019-11-04 6:31 UTC (permalink / raw)
To: dev; +Cc: ferruh.yigit, Linuxarm, humin (Q), Liyuan (Larry), dengxiaofeng
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>
Acked-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
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