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GET /api/patches/1178/?format=api
{ "id": 1178, "url": "https://patches.dpdk.org/api/patches/1178/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/1415286460-14337-1-git-send-email-liang.xu@cinfotech.cn/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<1415286460-14337-1-git-send-email-liang.xu@cinfotech.cn>", "list_archive_url": "https://inbox.dpdk.org/dev/1415286460-14337-1-git-send-email-liang.xu@cinfotech.cn", "date": "2014-11-06T15:07:40", "name": "[dpdk-dev,v4] eal: map uio resources after hugepages when the base_virtaddr is configured.", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": true, "hash": "bd1c927ac7bbb8e48b2153f9ba2c2baf9adb5363", "submitter": { "id": 106, "url": "https://patches.dpdk.org/api/people/106/?format=api", "name": "lxu", "email": "liang.xu@cinfotech.cn" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/1415286460-14337-1-git-send-email-liang.xu@cinfotech.cn/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/1178/comments/", "check": "pending", "checks": "https://patches.dpdk.org/api/patches/1178/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id C92027EC4;\n\tThu, 6 Nov 2014 15:58:30 +0100 (CET)", "from out1134-226.mail.aliyun.com (out1134-226.mail.aliyun.com\n\t[42.120.134.226]) by dpdk.org (Postfix) with ESMTP id BED5B7E80\n\tfor <dev@dpdk.org>; Thu, 6 Nov 2014 15:58:28 +0100 (CET)", "from dev.SSG-140(mailfrom:liang.xu@cinfotech.cn ip:222.65.239.251)\n\tby smtp.aliyun-inc.com(10.194.100.229);\n\tThu, 06 Nov 2014 23:07:53 +0800" ], "X-Alimail-AntiSpam": "AC=CONTINUE; BC=0.1495008|-1;\n\tFP=9733018898799600691|4|2|5|0|-1|-1|-1; HT=r41g08152;\n\tMF=liang.xu@cinfotech.cn; PH=DS; RN=2; RT=2; SR=0; ", "From": "lxu <liang.xu@cinfotech.cn>", "To": "dev@dpdk.org", "Date": "Thu, 6 Nov 2014 23:07:40 +0800", "Message-Id": "<1415286460-14337-1-git-send-email-liang.xu@cinfotech.cn>", "X-Mailer": "git-send-email 1.9.1", "In-Reply-To": "<1415193919-17361-1-git-send-email-liang.xu@cinfotech.cn>", "References": "<1415193919-17361-1-git-send-email-liang.xu@cinfotech.cn>", "Subject": "[dpdk-dev] [PATCH v4] eal: map uio resources after hugepages when\n\tthe base_virtaddr is configured.", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "patches and discussions about DPDK <dev.dpdk.org>", "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://dpdk.org/ml/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "---\n lib/librte_eal/linuxapp/eal/eal_pci_uio.c | 29 ++++++++++++++++++++++++++++-\n 1 file changed, 28 insertions(+), 1 deletion(-)", "diff": "diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c\nindex 7e62266..a2c9ab6 100644\n--- a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c\n+++ b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c\n@@ -273,6 +273,24 @@ pci_get_uio_dev(struct rte_pci_device *dev, char *dstbuf,\n \treturn uio_num;\n }\n \n+static inline const struct rte_memseg *\n+get_physmem_last(void)\n+{\n+\tconst struct rte_memseg * seg = rte_eal_get_physmem_layout();\n+\tconst struct rte_memseg * last = seg;\n+\tunsigned i = 0;\n+\n+\tfor (i=0; i<RTE_MAX_MEMSEG; i++, seg++) {\n+\t\tif (seg->addr == NULL)\n+\t\t\tbreak;\n+\n+\t\tif(seg->addr > last->addr)\n+\t\t \tlast = seg;\n+\n+\t}\n+\treturn last;\n+}\n+\n /* map the PCI resource of a PCI device in virtual memory */\n int\n pci_uio_map_resource(struct rte_pci_device *dev)\n@@ -290,6 +308,13 @@ pci_uio_map_resource(struct rte_pci_device *dev)\n \tstruct mapped_pci_resource *uio_res;\n \tstruct pci_map *maps;\n \n+\t/* map uio resource into user required virtual address */\n+\tstatic void * requested_addr;\n+\tif (internal_config.base_virtaddr && NULL == requested_addr) {\n+\t\tconst struct rte_memseg * last = get_physmem_last();\n+\t\trequested_addr = RTE_PTR_ADD(last->addr, last->len);\n+\t}\n+\n \tdev->intr_handle.fd = -1;\n \tdev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;\n \n@@ -371,10 +396,12 @@ pci_uio_map_resource(struct rte_pci_device *dev)\n \t\t\tif (maps[j].addr != NULL)\n \t\t\t\tfail = 1;\n \t\t\telse {\n-\t\t\t\tmapaddr = pci_map_resource(NULL, fd, (off_t)offset,\n+\t\t\t\tmapaddr = pci_map_resource(requested_addr, fd, (off_t)offset,\n \t\t\t\t\t\t(size_t)maps[j].size);\n \t\t\t\tif (mapaddr == NULL)\n \t\t\t\t\tfail = 1;\n+\t\t\t\telse if (NULL != requested_addr)\n+\t\t\t\t\trequested_addr = RTE_PTR_ADD(mapaddr, maps[j].size);\n \t\t\t}\n \n \t\t\tif (fail) {\n", "prefixes": [ "dpdk-dev", "v4" ] }