On Wed, Nov 25, 2015 at 11:23:57AM +0100, Thomas Monjalon wrote: > 2015-11-25 10:08, Bruce Richardson: > > On Wed, Nov 25, 2015 at 03:39:17PM +0900, Younghwan Go wrote: > > > Hi Jianfeng, > > > > > > Thanks for the email. rte mempool was successfully created without any > > > error. Now the next problem is that rte_eth_rx_burst() is always > > > returning 0 > > > as if there was no packet to receive... Do you have any suggestion on what > > > might be causing this issue? In the meantime, I will be digging through > > > ixgbe driver code to see what's going on. > > > > > > Thank you, > > > Younghwan > > > > > > > The problem is that with --no-huge we don't have the physical address of > > the memory > > to write to the network card. That's what it's marked as for testing only. > > Even with rte_mem_virt2phy() + rte_mem_lock_page() ? > With no-huge, we just set up a single memory segment at startup and set its "physaddr" to be the virtual address.
/Bruce /* hugetlbfs can be disabled */ if (internal_config.no_hugetlbfs) { addr = mmap(NULL, internal_config.memory, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); if (addr == MAP_FAILED) { RTE_LOG(ERR, EAL, "%s: mmap() failed: %s\n", __func__, strerror(errno)); return -1; } mcfg->memseg[0].phys_addr = (phys_addr_t)(uintptr_t)addr; mcfg->memseg[0].addr = addr; mcfg->memseg[0].hugepage_sz = RTE_PGSIZE_4K; mcfg->memseg[0].len = internal_config.memory; mcfg->memseg[0].socket_id = 0; return 0; }