[dpdk-dev] [PATCH v8 14/25] pci: introduce PCI address parsing function
Gaetan Rivet
gaetan.rivet at 6wind.com
Thu Oct 26 12:05:59 CEST 2017
A new single function that is able to parse all currently supported
format:
* Domain-Bus-Device-Function
* Bus-Device-Function
Signed-off-by: Gaetan Rivet <gaetan.rivet at 6wind.com>
---
lib/librte_eal/common/eal_common_pci.c | 9 +++++++++
lib/librte_eal/common/include/rte_pci.h | 14 ++++++++++++++
lib/librte_eal/rte_eal_version.map | 1 +
3 files changed, 24 insertions(+)
diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index 2230e09..d01b0f9 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -199,6 +199,15 @@ rte_eal_compare_pci_addr(const struct rte_pci_addr *addr,
return rte_pci_addr_cmp(addr, addr2);
}
+int
+rte_pci_addr_parse(const char *str, struct rte_pci_addr *addr)
+{
+ if (rte_pci_bdf_parse(str, addr) == 0 ||
+ rte_pci_dbdf_parse(str, addr) == 0)
+ return 0;
+ return -1;
+}
+
void
pci_name_set(struct rte_pci_device *dev)
{
diff --git a/lib/librte_eal/common/include/rte_pci.h b/lib/librte_eal/common/include/rte_pci.h
index 9ac19d5..11ba442 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -347,6 +347,20 @@ int rte_eal_compare_pci_addr(const struct rte_pci_addr *addr,
const struct rte_pci_addr *addr2);
/**
+ * Utility function to parse a string into a PCI location.
+ *
+ * @param str
+ * The string to parse
+ * @param addr
+ * The reference to the structure where the location
+ * is stored.
+ * @return
+ * 0 on success
+ * <0 otherwise
+ */
+int rte_pci_addr_parse(const char *str, struct rte_pci_addr *addr);
+
+/**
* Scan the content of the PCI bus, and the devices in the devices
* list
*
diff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map
index 5cad972..3568694 100644
--- a/lib/librte_eal/rte_eal_version.map
+++ b/lib/librte_eal/rte_eal_version.map
@@ -254,6 +254,7 @@ DPDK_17.11 {
rte_lcore_has_role;
rte_memcpy_ptr;
rte_pci_addr_cmp;
+ rte_pci_addr_parse;
rte_pci_bdf_parse;
rte_pci_dbdf_parse;
rte_pci_device_name;
--
2.1.4
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