From 4f41de4fd549172acc5460b5c3df2b7a8f7f08bd Mon Sep 17 00:00:00 2001 From: Helin Zhang Date: Thu, 14 Aug 2014 14:12:53 +0800 Subject: [PATCH] i40e: support xen domain0 i40e was failing to run in XEN domain0, as the physical memory for adminq DMA should be allocated and translated in a different way for XEN domain0. So rte_memzone_reserve_bounded() should be used for DMA memory allocation, and rte_mem_phy2mch() should be used for DMA memory address translation to support running i40e PMD in XEN domain0. Signed-off-by: Helin Zhang Tested-by: Zhaochen Zhan Acked-by: Jijiang Liu --- lib/librte_pmd_i40e/i40e_ethdev.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c b/lib/librte_pmd_i40e/i40e_ethdev.c index 9ed31b55d0..7a823a0839 100644 --- a/lib/librte_pmd_i40e/i40e_ethdev.c +++ b/lib/librte_pmd_i40e/i40e_ethdev.c @@ -1515,14 +1515,23 @@ i40e_allocate_dma_mem_d(__attribute__((unused)) struct i40e_hw *hw, id++; snprintf(z_name, sizeof(z_name), "i40e_dma_%"PRIu64, id); +#ifdef RTE_LIBRTE_XEN_DOM0 + mz = rte_memzone_reserve_bounded(z_name, size, 0, 0, alignment, + RTE_PGSIZE_2M); +#else mz = rte_memzone_reserve_aligned(z_name, size, 0, 0, alignment); +#endif if (!mz) return I40E_ERR_NO_MEMORY; mem->id = id; mem->size = size; mem->va = mz->addr; +#ifdef RTE_LIBRTE_XEN_DOM0 + mem->pa = rte_mem_phy2mch(mz->memseg_id, mz->phys_addr); +#else mem->pa = mz->phys_addr; +#endif return I40E_SUCCESS; } -- 2.20.1