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GET /api/patches/43764/?format=api
{ "id": 43764, "url": "http://patches.dpdk.org/api/patches/43764/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/1534502916-31636-4-git-send-email-jia.guo@intel.com/", "project": { "id": 1, "url": "http://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": "<1534502916-31636-4-git-send-email-jia.guo@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1534502916-31636-4-git-send-email-jia.guo@intel.com", "date": "2018-08-17T10:48:30", "name": "[v10,3/8] bus: add sigbus handler", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "6ed9b24854a7006ecc8cd2aeddb4fab791ebfe35", "submitter": { "id": 507, "url": "http://patches.dpdk.org/api/people/507/?format=api", "name": "Guo, Jia", "email": "jia.guo@intel.com" }, "delegate": { "id": 1, "url": "http://patches.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/1534502916-31636-4-git-send-email-jia.guo@intel.com/mbox/", "series": [ { "id": 1007, "url": "http://patches.dpdk.org/api/series/1007/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=1007", "date": "2018-08-17T10:48:27", "name": "hotplug failure handle mechanism", "version": 10, "mbox": "http://patches.dpdk.org/series/1007/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/43764/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/43764/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 [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 424932B83;\n\tFri, 17 Aug 2018 12:51:31 +0200 (CEST)", "from mga14.intel.com (mga14.intel.com [192.55.52.115])\n\tby dpdk.org (Postfix) with ESMTP id 12337493D\n\tfor <dev@dpdk.org>; Fri, 17 Aug 2018 12:51:28 +0200 (CEST)", "from fmsmga007.fm.intel.com ([10.253.24.52])\n\tby fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t17 Aug 2018 03:51:28 -0700", "from jeffguo-z170x-ud5.sh.intel.com (HELO localhost.localdomain)\n\t([10.67.104.10])\n\tby fmsmga007.fm.intel.com with ESMTP; 17 Aug 2018 03:51:26 -0700" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.53,250,1531810800\"; d=\"scan'208\";a=\"63131836\"", "From": "Jeff Guo <jia.guo@intel.com>", "To": "stephen@networkplumber.org, bruce.richardson@intel.com,\n\tferruh.yigit@intel.com, konstantin.ananyev@intel.com,\n\tgaetan.rivet@6wind.com, jingjing.wu@intel.com, thomas@monjalon.net,\n\tmotih@mellanox.com, matan@mellanox.com, harry.van.haaren@intel.com,\n\tqi.z.zhang@intel.com, shaopeng.he@intel.com,\n\tbernard.iremonger@intel.com, \n\tarybchenko@solarflare.com, wenzhuo.lu@intel.com", "Cc": "jblunck@infradead.org, shreyansh.jain@nxp.com, dev@dpdk.org,\n\tjia.guo@intel.com, helin.zhang@intel.com", "Date": "Fri, 17 Aug 2018 18:48:30 +0800", "Message-Id": "<1534502916-31636-4-git-send-email-jia.guo@intel.com>", "X-Mailer": "git-send-email 2.7.4", "In-Reply-To": "<1534502916-31636-1-git-send-email-jia.guo@intel.com>", "References": "<1498711073-42917-1-git-send-email-jia.guo@intel.com>\n\t<1534502916-31636-1-git-send-email-jia.guo@intel.com>", "Subject": "[dpdk-dev] [PATCH v10 3/8] bus: add sigbus handler", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "When a device is hotplugged out, a sigbus error will occur of the datapath\ncan still read/write to the device. A handler is required here to capture\nthe sigbus signal and handle it appropriately.\n\nThis patch introduces bus ops to handle sigbus errors. Each bus can\nimplement its own case-dependent logic to handle the sigbus errors.\n\nSigned-off-by: Jeff Guo <jia.guo@intel.com>\nAcked-by: Shaopeng He <shaopeng.he@intel.com>\n---\nv10->v9:\nrefine commit log\n---\n lib/librte_eal/common/include/rte_bus.h | 18 ++++++++++++++++++\n 1 file changed, 18 insertions(+)", "diff": "diff --git a/lib/librte_eal/common/include/rte_bus.h b/lib/librte_eal/common/include/rte_bus.h\nindex 2606451..ddb29dd 100644\n--- a/lib/librte_eal/common/include/rte_bus.h\n+++ b/lib/librte_eal/common/include/rte_bus.h\n@@ -182,6 +182,21 @@ typedef int (*rte_bus_parse_t)(const char *name, void *addr);\n typedef int (*rte_bus_memory_failure_handler_t)(struct rte_device *dev);\n \n /**\n+ * Implement a specific sigbus handler, which is responsible for handle\n+ * the sigbus error which is either original memory error, or specific memory\n+ * error that caused of device be hotplug-out. When sigbus error be captured,\n+ * it could call this function to handle sigbus error.\n+ * @param failure_addr\n+ *\tPointer of the fault address of the sigbus error.\n+ *\n+ * @return\n+ *\t0 for success handle the sigbus.\n+ *\t1 for no bus handle the sigbus.\n+ *\t-1 for failed to handle the sigbus\n+ */\n+typedef int (*rte_bus_sigbus_handler_t)(const void *failure_addr);\n+\n+/**\n * Bus scan policies\n */\n enum rte_bus_scan_mode {\n@@ -228,6 +243,9 @@ struct rte_bus {\n \trte_dev_iterate_t dev_iterate; /**< Device iterator. */\n \trte_bus_memory_failure_handler_t memory_failure_handler;\n \t\t\t\t\t/**< handle memory failure on the bus */\n+\trte_bus_sigbus_handler_t sigbus_handler;\n+\t\t\t\t\t/**< handle sigbus error on the bus */\n+\n };\n \n /**\n", "prefixes": [ "v10", "3/8" ] }