Hi,
First I've encountered a compiling problem when compiling for DOM0 due to
prototype change of the function xen_create_contiguous_region
I made the following changes:
diff --git a/lib/librte_eal/linuxapp/xen_dom0/dom0_mm_misc.c
b/lib/librte_eal/linuxapp/xen
index 87fa3e6..8addc21 100644
--- a/lib/librte_eal/linuxapp/xen_dom0/dom0_mm_misc.c
+++ b/lib/librte_eal/linuxapp/xen_dom0/dom0_mm_misc.c
@@ -64,6 +64,7 @@
#include <linux/errno.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
+//#include <linux/types.h>
#include <xen/xen.h>
#include <xen/page.h>
@@ -309,6 +310,7 @@ dom0_prepare_memsegs(struct memory_info* meminfo, struct
dom0_mm_data
uint64_t pfn, vstart, vaddr;
uint32_t i, num_block, size;
int idx;
+ dma_addr_t *dma_handle = NULL;
/* Allocate 2M memory once */
num_block = meminfo->size / 2;
@@ -344,7 +346,7 @@ dom0_prepare_memsegs(struct memory_info* meminfo, struct
dom0_mm_data
* contiguous physical addresses, its maximum size is 2M.
*/
if
(xen_create_contiguous_region(mm_data->block_info[i].vir_addr,
- DOM0_CONTIG_NUM_ORDER, 0) == 0) {
+ DOM0_CONTIG_NUM_ORDER, 0, dma_handle) == 0)
{
mm_data->block_info[i].exchange_flag = 1;
mm_data->block_info[i].mfn =
pfn_to_mfn(mm_data->block_info[i].pfn);
After that I tried to run l2fwd example and got a segmentation fault
root at Smart:~/samuelm/dpdk/dpdk# modprobe uio
root at Smart:~/samuelm/dpdk/dpdk# insmod
./x86_64-default-linuxapp-gcc/kmod/igb_uio.ko
root at Smart:~/samuelm/dpdk/dpdk# insmod
./x86_64-default-linuxapp-gcc/kmod/rte_dom0_mm.ko
root at Smart:~/samuelm/dpdk/dpdk# cd examples/l2fwd/build/
root at Smart:~/samuelm/dpdk/dpdk/examples/l2fwd/build# echo 2048 >
/sys/kernel/mm/dom0-mm/memsize-mB/memsize
root at Smart:~/samuelm/dpdk/dpdk/examples/l2fwd/build# ./l2fwd -c 3 -n 4
--xen-dom0 -- -q 1 -p 3
EAL: Detected lcore 0 as core 0 on socket 0
EAL: Detected lcore 1 as core 0 on socket 0
EAL: Setting up memory...
Segmentation fault
root at Smart:~/samuelm/dpdk/dpdk/examples/l2fwd/build#
Has anyone already encountered this problem?
Samuelm
