[dpdk-dev] [PATCH 19/22] pci: reference driver structure for each device
Thomas Monjalon
thomas.monjalon at 6wind.com
Wed Mar 20 17:05:07 CET 2013
From: Adrien Mazarguil <adrien.mazarguil at 6wind.com>
Add a driver reference (if available) to every PCI devices,
even when blacklisted. This information is made available in the global
device_list variable so users know which network devices are managed or
ignored.
Acked-by: Ivan Boule <ivan.boule at 6wind.com>
Acked-by: Damien Millescamps <damien.millescamps at 6wind.com>
Signed-off-by: Adrien Mazarguil <adrien.mazarguil at 6wind.com>
---
lib/librte_eal/common/eal_common_pci.c | 3 +--
lib/librte_eal/common/include/rte_pci.h | 2 ++
lib/librte_eal/linuxapp/eal/eal_pci.c | 11 ++++++++++-
3 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index fe24265..73d8fb3 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -81,9 +81,8 @@ pci_probe_all_drivers(struct rte_pci_device *dev)
{
struct rte_pci_driver *dr = NULL;
+ dev->blacklisted = !!is_blacklisted(dev);
TAILQ_FOREACH(dr, &driver_list, next) {
- if (is_blacklisted(dev))
- return -1;
if (rte_eal_pci_probe_one_driver(dr, dev) == 0)
return 0;
}
diff --git a/lib/librte_eal/common/include/rte_pci.h b/lib/librte_eal/common/include/rte_pci.h
index f2128b5..b465995 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -111,6 +111,8 @@ struct rte_pci_device {
struct rte_pci_id id; /**< PCI ID. */
struct rte_pci_resource mem_resource; /**< PCI Memory Resource */
struct rte_intr_handle intr_handle; /**< Interrupt handle */
+ const struct rte_pci_driver *driver; /**< Associated driver */
+ unsigned int blacklisted:1; /**< Device is blacklisted */
};
/** Any PCI device identifier (vendor, device, ...) */
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci.c b/lib/librte_eal/linuxapp/eal/eal_pci.c
index 78687d6..86002bd 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci.c
@@ -731,7 +731,8 @@ rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *d
dev->id.vendor_id, dev->id.device_id, dr->name);
/* Unbind PCI devices if needed */
- if (module_name != NULL) {
+ if ((!dev->blacklisted) &&
+ (module_name != NULL)) {
if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
/* unbind current driver, bind ours */
if (pci_unbind_kernel_driver(dev) < 0)
@@ -743,6 +744,14 @@ rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *d
if (pci_uio_map_resource(dev) < 0)
return -1;
}
+
+ /* reference driver structure */
+ dev->driver = dr;
+
+ /* no initialization when blacklisted */
+ if (dev->blacklisted)
+ return -1;
+
/* call the driver devinit() function */
return dr->devinit(dr, dev);
--
1.7.2.5
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