From: Anatoly Burakov Date: Wed, 14 Nov 2018 14:51:11 +0000 (+0000) Subject: mem: check for contiguousness in external segments X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=32fc0fa00eed43d6985c2e8d3691f0e29aeea645;p=dpdk.git mem: check for contiguousness in external segments For IOVA as VA mode, we assume that memory is contiguous. However, for external segments that assumption may not necessarily hold. Fix the code to not assume that external memory segments are contiguous even in IOVA as VA mode. Fixes: 5282bb1c3695 ("mem: allow memseg lists to be marked as external") Signed-off-by: Anatoly Burakov --- diff --git a/lib/librte_eal/common/eal_common_memalloc.c b/lib/librte_eal/common/eal_common_memalloc.c index 1d41ea1126..3712719793 100644 --- a/lib/librte_eal/common/eal_common_memalloc.c +++ b/lib/librte_eal/common/eal_common_memalloc.c @@ -77,7 +77,7 @@ eal_memalloc_is_contig(const struct rte_memseg_list *msl, void *start, const struct rte_memseg *ms; /* for IOVA_VA, it's always contiguous */ - if (rte_eal_iova_mode() == RTE_IOVA_VA) + if (rte_eal_iova_mode() == RTE_IOVA_VA && !msl->external) return true; /* for legacy memory, it's always contiguous */