Patch Detail

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{
    "id": 17909,
    "url": "http://patches.dpdk.org/api/patches/17909/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/1481636232-2300-6-git-send-email-shreyansh.jain@nxp.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",
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    "msgid": "<1481636232-2300-6-git-send-email-shreyansh.jain@nxp.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1481636232-2300-6-git-send-email-shreyansh.jain@nxp.com",
    "date": "2016-12-13T13:37:05",
    "name": "[dpdk-dev,v2,05/12] eal: integrate bus scan and probe with EAL",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "bc8eb0fb778f021af6615cff85bd2ccd4da80fe2",
    "submitter": {
        "id": 497,
        "url": "http://patches.dpdk.org/api/people/497/?format=api",
        "name": "Shreyansh Jain",
        "email": "shreyansh.jain@nxp.com"
    },
    "delegate": null,
    "mbox": "http://patches.dpdk.org/project/dpdk/patch/1481636232-2300-6-git-send-email-shreyansh.jain@nxp.com/mbox/",
    "series": [],
    "comments": "http://patches.dpdk.org/api/patches/17909/comments/",
    "check": "success",
    "checks": "http://patches.dpdk.org/api/patches/17909/checks/",
    "tags": {},
    "related": [],
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        "From": "Shreyansh Jain <shreyansh.jain@nxp.com>",
        "To": "<dev@dpdk.org>, <david.marchand@6wind.com>",
        "CC": "<thomas.monjalon@6wind.com>, <ferruh.yigit@intel.com>,\n\t<jianbo.liu@linaro.org>, Shreyansh Jain <shreyansh.jain@nxp.com>",
        "Date": "Tue, 13 Dec 2016 19:07:05 +0530",
        "Message-ID": "<1481636232-2300-6-git-send-email-shreyansh.jain@nxp.com>",
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        "Subject": "[dpdk-dev] [PATCH v2 05/12] eal: integrate bus scan and probe with\n\tEAL",
        "X-BeenThere": "dev@dpdk.org",
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        "Errors-To": "dev-bounces@dpdk.org",
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    },
    "content": "Still a dummy implementation as no real bus driver exists. This adds calls\nfrom EAL to bus specific scan, match functions.\nOnce driver->probe is in place, and a bus handler has been installed,\nthe code would become effective.\n\nSigned-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>\n---\n lib/librte_eal/bsdapp/eal/eal.c         |  7 +++++++\n lib/librte_eal/common/eal_common_bus.c  | 30 ++++++++++++++++++++++++++++++\n lib/librte_eal/common/include/rte_bus.h | 19 +++++++++++++++++++\n lib/librte_eal/linuxapp/eal/eal.c       |  7 +++++++\n 4 files changed, 63 insertions(+)",
    "diff": "diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c\nindex 35e3117..30afc6b 100644\n--- a/lib/librte_eal/bsdapp/eal/eal.c\n+++ b/lib/librte_eal/bsdapp/eal/eal.c\n@@ -64,6 +64,7 @@\n #include <rte_string_fns.h>\n #include <rte_cpuflags.h>\n #include <rte_interrupts.h>\n+#include <rte_bus.h>\n #include <rte_pci.h>\n #include <rte_dev.h>\n #include <rte_devargs.h>\n@@ -580,6 +581,9 @@ rte_eal_init(int argc, char **argv)\n \tif (rte_eal_dev_init() < 0)\n \t\trte_panic(\"Cannot init pmd devices\\n\");\n \n+\tif (rte_eal_bus_scan())\n+\t\trte_panic(\"Cannot scan the buses for devices\\n\");\n+\n \tRTE_LCORE_FOREACH_SLAVE(i) {\n \n \t\t/*\n@@ -616,6 +620,9 @@ rte_eal_init(int argc, char **argv)\n \tif (rte_eal_pci_probe())\n \t\trte_panic(\"Cannot probe PCI\\n\");\n \n+\tif (rte_eal_bus_probe())\n+\t\trte_panic(\"Cannot probe devices\\n\");\n+\n \trte_eal_mcfg_complete();\n \n \treturn fctret;\ndiff --git a/lib/librte_eal/common/eal_common_bus.c b/lib/librte_eal/common/eal_common_bus.c\nindex 3be9c77..67b808b 100644\n--- a/lib/librte_eal/common/eal_common_bus.c\n+++ b/lib/librte_eal/common/eal_common_bus.c\n@@ -173,6 +173,36 @@ rte_eal_bus_unregister(struct rte_bus *bus)\n \tRTE_LOG(INFO, EAL, \"Unregistered [%s] bus.\\n\", bus->name);\n }\n \n+/* Scan all the buses for registering devices */\n+int\n+rte_eal_bus_scan(void)\n+{\n+\tint ret;\n+\tstruct rte_bus *bus = NULL;\n+\n+\tTAILQ_FOREACH(bus, &rte_bus_list, next) {\n+\t\tret = bus->scan(bus);\n+\t\tif (ret) {\n+\t\t\tRTE_LOG(ERR, EAL, \"Scan for (%s) bus failed.\\n\",\n+\t\t\t\tbus->name);\n+\t\t\t/* TODO: Should error on a particular bus block scan\n+\t\t\t * for all others?\n+\t\t\t */\n+\t\t\treturn ret;\n+\t\t}\n+\t}\n+\n+\treturn 0;\n+}\n+\n+/* Match driver<->device and call driver->probe() */\n+int\n+rte_eal_bus_probe(void)\n+{\n+\t/* Until driver->probe is available, this is dummy implementation */\n+\treturn 0;\n+}\n+\n /* dump one bus info */\n static int\n bus_dump_one(FILE *f, struct rte_bus *bus)\ndiff --git a/lib/librte_eal/common/include/rte_bus.h b/lib/librte_eal/common/include/rte_bus.h\nindex d1bd2e8..9bd8650 100644\n--- a/lib/librte_eal/common/include/rte_bus.h\n+++ b/lib/librte_eal/common/include/rte_bus.h\n@@ -209,6 +209,25 @@ void rte_eal_bus_unregister(struct rte_bus *bus);\n  */\n struct rte_bus *rte_eal_get_bus(const char *bus_name);\n \n+/** @internal\n+ * Scan all the buses attached to the framework.\n+ *\n+ * @param void\n+ * @return void\n+ */\n+int rte_eal_bus_scan(void);\n+\n+/** @internal\n+ * For each device on the bus, perform a driver 'match' and call the\n+ * driver's probe for device initialization.\n+ *\n+ * @param void\n+ * @return\n+ *\t0 for successful match/probe\n+ *\t!0 otherwise\n+ */\n+int rte_eal_bus_probe(void);\n+\n /**\n  * Dump information of all the buses registered with EAL.\n  *\ndiff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c\nindex 2075282..01d0cee 100644\n--- a/lib/librte_eal/linuxapp/eal/eal.c\n+++ b/lib/librte_eal/linuxapp/eal/eal.c\n@@ -69,6 +69,7 @@\n #include <rte_string_fns.h>\n #include <rte_cpuflags.h>\n #include <rte_interrupts.h>\n+#include <rte_bus.h>\n #include <rte_pci.h>\n #include <rte_dev.h>\n #include <rte_devargs.h>\n@@ -847,6 +848,9 @@ rte_eal_init(int argc, char **argv)\n \tif (rte_eal_intr_init() < 0)\n \t\trte_panic(\"Cannot init interrupt-handling thread\\n\");\n \n+\tif (rte_eal_bus_scan())\n+\t\trte_panic(\"Cannot scan the buses for devices\\n\");\n+\n \tRTE_LCORE_FOREACH_SLAVE(i) {\n \n \t\t/*\n@@ -887,6 +891,9 @@ rte_eal_init(int argc, char **argv)\n \tif (rte_eal_pci_probe())\n \t\trte_panic(\"Cannot probe PCI\\n\");\n \n+\tif (rte_eal_bus_probe())\n+\t\trte_panic(\"Cannot probe devices\\n\");\n+\n \trte_eal_mcfg_complete();\n \n \treturn fctret;\n",
    "prefixes": [
        "dpdk-dev",
        "v2",
        "05/12"
    ]
}