From: Shreyansh Jain <shreyansh.jain@nxp.com>
To: <david.marchand@6wind.com>
Cc: <dev@dpdk.org>, <thomas.monjalon@6wind.com>,
Shreyansh Jain <shreyansh.jain@nxp.com>
Subject: [dpdk-dev] [PATCH v4 07/12] pci: split match and probe function
Date: Mon, 26 Dec 2016 18:20:39 +0530 [thread overview]
Message-ID: <1482756644-13726-8-git-send-email-shreyansh.jain@nxp.com> (raw)
In-Reply-To: <1482756644-13726-1-git-send-email-shreyansh.jain@nxp.com>
Matching of PCI device address and driver ID table is being done at two
discreet locations duplicating the code. (rte_eal_pci_probe_one_driver
and rte_eal_pci_detach_dev).
Splitting the matching function into rte_eal_pci_match.
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
--
v2:
- Change default return in match function
---
lib/librte_eal/common/eal_common_pci.c | 176 ++++++++++++++++++--------------
lib/librte_eal/common/include/rte_pci.h | 15 +++
2 files changed, 114 insertions(+), 77 deletions(-)
diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index 33485bc..f466448 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -152,71 +152,106 @@ pci_unmap_resource(void *requested_addr, size_t size)
requested_addr);
}
-/*
- * If vendor/device ID match, call the probe() function of the
- * driver.
- */
-static int
-rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *dev)
+int
+rte_eal_pci_match(struct rte_pci_driver *pci_drv,
+ struct rte_pci_device *pci_dev)
{
- int ret;
+ int match = 1;
const struct rte_pci_id *id_table;
- for (id_table = dr->id_table; id_table->vendor_id != 0; id_table++) {
+ if (!pci_drv || !pci_dev || !pci_drv->id_table) {
+ RTE_LOG(DEBUG, EAL, "Invalid PCI Driver object\n");
+ return -1;
+ }
+ for (id_table = pci_drv->id_table; id_table->vendor_id != 0;
+ id_table++) {
/* check if device's identifiers match the driver's ones */
- if (id_table->vendor_id != dev->id.vendor_id &&
+ if (id_table->vendor_id != pci_dev->id.vendor_id &&
id_table->vendor_id != PCI_ANY_ID)
continue;
- if (id_table->device_id != dev->id.device_id &&
+ if (id_table->device_id != pci_dev->id.device_id &&
id_table->device_id != PCI_ANY_ID)
continue;
- if (id_table->subsystem_vendor_id != dev->id.subsystem_vendor_id &&
- id_table->subsystem_vendor_id != PCI_ANY_ID)
+ if (id_table->subsystem_vendor_id !=
+ pci_dev->id.subsystem_vendor_id &&
+ id_table->subsystem_vendor_id != PCI_ANY_ID)
continue;
- if (id_table->subsystem_device_id != dev->id.subsystem_device_id &&
- id_table->subsystem_device_id != PCI_ANY_ID)
+ if (id_table->subsystem_device_id !=
+ pci_dev->id.subsystem_device_id &&
+ id_table->subsystem_device_id != PCI_ANY_ID)
continue;
- if (id_table->class_id != dev->id.class_id &&
+ if (id_table->class_id != pci_dev->id.class_id &&
id_table->class_id != RTE_CLASS_ANY_ID)
continue;
- struct rte_pci_addr *loc = &dev->addr;
+ match = 0;
+ break;
+ }
- RTE_LOG(INFO, EAL, "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
- loc->domain, loc->bus, loc->devid, loc->function,
- dev->device.numa_node);
+ return match;
+}
- /* no initialization when blacklisted, return without error */
- if (dev->device.devargs != NULL &&
- dev->device.devargs->type ==
- RTE_DEVTYPE_BLACKLISTED_PCI) {
- RTE_LOG(INFO, EAL, " Device is blacklisted, not initializing\n");
- return 1;
- }
+/*
+ * If vendor/device ID match, call the probe() function of the
+ * driver.
+ */
+static int
+rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr,
+ struct rte_pci_device *dev)
+{
+ int ret;
+ struct rte_pci_addr *loc;
- RTE_LOG(INFO, EAL, " probe driver: %x:%x %s\n", dev->id.vendor_id,
- dev->id.device_id, dr->driver.name);
+ if ((dr == NULL) || (dev == NULL))
+ return -EINVAL;
- if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING) {
- /* map resources for devices that use igb_uio */
- ret = rte_eal_pci_map_device(dev);
- if (ret != 0)
- return ret;
- }
+ loc = &dev->addr;
- /* reference driver structure */
- dev->driver = dr;
+ RTE_LOG(INFO, EAL, "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
+ loc->domain, loc->bus, loc->devid, loc->function,
+ dev->device.numa_node);
- /* call the driver probe() function */
- ret = dr->probe(dr, dev);
- if (ret)
- dev->driver = NULL;
+ /* no initialization when blacklisted, return without error */
+ if (dev->device.devargs != NULL &&
+ dev->device.devargs->type ==
+ RTE_DEVTYPE_BLACKLISTED_PCI) {
+ RTE_LOG(INFO, EAL, " Device is blacklisted, not"
+ " initializing\n");
+ return 1;
+ }
- return ret;
+ /* The device is not blacklisted; Check if driver supports it */
+ ret = rte_eal_pci_match(dr, dev);
+ if (ret) {
+ /* Match of device and driver failed */
+ RTE_LOG(DEBUG, EAL, "Driver (%s) doesn't match the device\n",
+ dr->driver.name);
+ return 1;
}
- /* return positive value if driver doesn't support this device */
- return 1;
+
+ RTE_LOG(INFO, EAL, " probe driver: %x:%x %s\n", dev->id.vendor_id,
+ dev->id.device_id, dr->driver.name);
+
+ if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING) {
+ /* map resources for devices that use igb_uio */
+ ret = rte_eal_pci_map_device(dev);
+ if (ret != 0)
+ return ret;
+ }
+
+ /* reference driver structure */
+ dev->driver = dr;
+
+ /* call the driver probe() function */
+ ret = dr->probe(dr, dev);
+ if (ret) {
+ RTE_LOG(DEBUG, EAL, "Driver (%s) probe failed.\n",
+ dr->driver.name);
+ dev->driver = NULL;
+ }
+
+ return ret;
}
/*
@@ -227,51 +262,38 @@ static int
rte_eal_pci_detach_dev(struct rte_pci_driver *dr,
struct rte_pci_device *dev)
{
- const struct rte_pci_id *id_table;
+ int ret;
+ struct rte_pci_addr *loc;
if ((dr == NULL) || (dev == NULL))
return -EINVAL;
- for (id_table = dr->id_table; id_table->vendor_id != 0; id_table++) {
-
- /* check if device's identifiers match the driver's ones */
- if (id_table->vendor_id != dev->id.vendor_id &&
- id_table->vendor_id != PCI_ANY_ID)
- continue;
- if (id_table->device_id != dev->id.device_id &&
- id_table->device_id != PCI_ANY_ID)
- continue;
- if (id_table->subsystem_vendor_id != dev->id.subsystem_vendor_id &&
- id_table->subsystem_vendor_id != PCI_ANY_ID)
- continue;
- if (id_table->subsystem_device_id != dev->id.subsystem_device_id &&
- id_table->subsystem_device_id != PCI_ANY_ID)
- continue;
-
- struct rte_pci_addr *loc = &dev->addr;
+ ret = rte_eal_pci_match(dr, dev);
+ if (ret) {
+ /* Device and driver don't match */
+ return 1;
+ }
- RTE_LOG(DEBUG, EAL, "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
- loc->domain, loc->bus, loc->devid,
- loc->function, dev->device.numa_node);
+ loc = &dev->addr;
- RTE_LOG(DEBUG, EAL, " remove driver: %x:%x %s\n", dev->id.vendor_id,
- dev->id.device_id, dr->driver.name);
+ RTE_LOG(DEBUG, EAL, "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
+ loc->domain, loc->bus, loc->devid,
+ loc->function, dev->device.numa_node);
- if (dr->remove && (dr->remove(dev) < 0))
- return -1; /* negative value is an error */
+ RTE_LOG(DEBUG, EAL, " remove driver: %x:%x %s\n", dev->id.vendor_id,
+ dev->id.device_id, dr->driver.name);
- /* clear driver structure */
- dev->driver = NULL;
+ if (dr->remove && (dr->remove(dev) < 0))
+ return -1; /* negative value is an error */
- if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING)
- /* unmap resources for devices that use igb_uio */
- rte_eal_pci_unmap_device(dev);
+ /* clear driver structure */
+ dev->driver = NULL;
- return 0;
- }
+ if (dr->drv_flags & RTE_PCI_DRV_NEED_MAPPING)
+ /* unmap resources for devices that use igb_uio */
+ rte_eal_pci_unmap_device(dev);
- /* return positive value if driver doesn't support this device */
- return 1;
+ return 0;
}
/*
diff --git a/lib/librte_eal/common/include/rte_pci.h b/lib/librte_eal/common/include/rte_pci.h
index 87cad59..34ff3d1 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -373,6 +373,21 @@ rte_eal_compare_pci_addr(const struct rte_pci_addr *addr,
int rte_eal_pci_scan(void);
/**
+ * Match the PCI Driver and Device using the ID Table
+ *
+ * @param pci_drv
+ * PCI driver from which ID table would be extracted
+ * @param pci_dev
+ * PCI device to match against the driver
+ * @return
+ * 0 for successful match
+ * !0 for unsuccessful match
+ */
+int
+rte_eal_pci_match(struct rte_pci_driver *pci_drv,
+ struct rte_pci_device *pci_dev);
+
+/**
* Probe the PCI bus for registered drivers.
*
* Scan the content of the PCI bus, and call the probe() function for
--
2.7.4
next prev parent reply other threads:[~2016-12-26 12:50 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-04 10:11 [dpdk-dev] [PATCH 00/13] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 01/13] eal: define container_of macro Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 02/13] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 03/13] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 04/13] eal/bus: add scan and match support Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 05/13] eal/bus: add support for inserting a device on a bus Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 06/13] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 07/13] pci: replace probe and remove handlers with rte_driver Shreyansh Jain
2016-12-08 17:50 ` Ferruh Yigit
2016-12-09 4:59 ` Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 08/13] eal: enable probe and remove from bus infrastructure Shreyansh Jain
2016-12-06 10:45 ` Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 09/13] pci: split match and probe function Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 10/13] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 11/13] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 12/13] eal: enable PCI bus Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 13/13] eal/pci: remove PCI probe and init calls Shreyansh Jain
2016-12-06 20:52 ` [dpdk-dev] [PATCH 00/13] Introducing EAL Bus-Device-Driver Model David Marchand
2016-12-07 9:55 ` Shreyansh Jain
2016-12-07 12:17 ` David Marchand
2016-12-07 13:10 ` Shreyansh Jain
2016-12-07 13:24 ` Thomas Monjalon
2016-12-08 5:04 ` Shreyansh Jain
2016-12-08 7:21 ` Thomas Monjalon
2016-12-08 7:53 ` Shreyansh Jain
2016-12-12 14:35 ` Jianbo Liu
2016-12-13 6:56 ` Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 00/12] " Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 01/12] eal: define container_of macro Shreyansh Jain
2016-12-13 22:24 ` Jan Blunck
2016-12-14 5:12 ` Shreyansh Jain
2016-12-16 8:14 ` Jan Blunck
2016-12-16 9:23 ` Adrien Mazarguil
2016-12-16 10:47 ` Jan Blunck
2016-12-16 11:21 ` Adrien Mazarguil
2016-12-16 11:54 ` Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 02/12] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 03/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 04/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 05/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 06/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 07/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 08/12] pci: split match and probe function Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 09/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 10/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 11/12] eal: enable PCI bus Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 12/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2016-12-13 13:52 ` Andrew Rybchenko
2016-12-13 15:07 ` Ferruh Yigit
2016-12-14 5:14 ` Shreyansh Jain
2016-12-14 5:11 ` Shreyansh Jain
2016-12-14 9:49 ` Shreyansh Jain
2016-12-15 21:36 ` Jan Blunck
2016-12-26 9:14 ` Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 00/12] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 01/12] eal: define container_of macro Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 02/12] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-20 12:37 ` Hemant Agrawal
2016-12-20 13:17 ` Jan Blunck
2016-12-20 13:51 ` Shreyansh Jain
2016-12-20 17:11 ` Stephen Hemminger
2016-12-21 7:11 ` Shreyansh Jain
2016-12-21 15:38 ` Jan Blunck
2016-12-21 23:33 ` Stephen Hemminger
2016-12-22 5:12 ` Shreyansh Jain
2016-12-22 5:52 ` Shreyansh Jain
2016-12-25 17:39 ` Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 03/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 04/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-16 13:25 ` Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 05/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 06/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 07/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 08/12] pci: split match and probe function Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 09/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 10/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 11/12] eal: enable PCI bus and PCI test framework Shreyansh Jain
2016-12-16 13:20 ` Shreyansh Jain
2016-12-16 13:10 ` [dpdk-dev] [PATCH v3 12/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 00/12] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 01/12] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 02/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 03/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-26 13:27 ` Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 04/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 05/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 06/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-26 12:50 ` Shreyansh Jain [this message]
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 08/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 09/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 10/12] eal: enable PCI bus and PCI test framework Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 11/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2016-12-26 12:50 ` [dpdk-dev] [PATCH v4 12/12] eal/bus: add bus iteration macros Shreyansh Jain
2016-12-26 13:23 ` [dpdk-dev] [PATCH v5 00/12] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-26 13:23 ` [dpdk-dev] [PATCH v5 01/12] eal/bus: introduce bus abstraction Shreyansh Jain
2017-01-03 21:52 ` Thomas Monjalon
2017-01-06 10:31 ` Shreyansh Jain
2017-01-06 14:55 ` Thomas Monjalon
2017-01-09 6:24 ` Shreyansh Jain
2017-01-09 15:22 ` Ferruh Yigit
2017-01-10 4:07 ` Shreyansh Jain
2016-12-26 13:23 ` [dpdk-dev] [PATCH v5 02/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-26 13:23 ` [dpdk-dev] [PATCH v5 03/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-26 13:23 ` [dpdk-dev] [PATCH v5 04/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2017-01-03 21:46 ` Thomas Monjalon
2017-01-06 10:38 ` Shreyansh Jain
2017-01-06 12:00 ` Shreyansh Jain
2017-01-06 13:46 ` Thomas Monjalon
2017-01-09 6:35 ` Shreyansh Jain
2017-01-08 12:21 ` Rosen, Rami
2017-01-09 6:34 ` Shreyansh Jain
2016-12-26 13:23 ` [dpdk-dev] [PATCH v5 05/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2017-01-03 22:05 ` Thomas Monjalon
2017-01-06 11:44 ` Shreyansh Jain
2017-01-06 15:26 ` Thomas Monjalon
2017-01-09 6:28 ` Shreyansh Jain
2016-12-26 13:23 ` [dpdk-dev] [PATCH v5 06/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-26 13:24 ` [dpdk-dev] [PATCH v5 07/12] pci: split match and probe function Shreyansh Jain
2017-01-03 22:08 ` Thomas Monjalon
2016-12-26 13:24 ` [dpdk-dev] [PATCH v5 08/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2017-01-03 22:13 ` Thomas Monjalon
2017-01-06 12:03 ` Shreyansh Jain
2016-12-26 13:24 ` [dpdk-dev] [PATCH v5 09/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-26 13:24 ` [dpdk-dev] [PATCH v5 10/12] eal: enable PCI bus and PCI test framework Shreyansh Jain
2016-12-26 13:24 ` [dpdk-dev] [PATCH v5 11/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2017-01-09 15:19 ` Ferruh Yigit
2017-01-09 16:18 ` Ferruh Yigit
2017-01-10 4:09 ` Shreyansh Jain
2016-12-26 13:24 ` [dpdk-dev] [PATCH v5 12/12] eal/bus: add bus iteration macros Shreyansh Jain
2017-01-03 22:15 ` Thomas Monjalon
2017-01-03 22:22 ` [dpdk-dev] [PATCH v5 00/12] Introducing EAL Bus-Device-Driver Model Thomas Monjalon
2017-01-06 6:27 ` Shreyansh Jain
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