v3:
> Isolate changes within rte_ether component.
v2:
> Remove tilegx changes
> Use rte_eal_compare_pci_addr for address comparison
> Use dpdk_2.2 in version map file for new functions
v1:
Changes include
> Modify rte_eal_vdev_init to return allocated port_id
> Modify rte_eal_probe_one to return allocated port_id
2. Removed following functions
> rte_eth_dev_save and
> rte_eth_dev_get_changed_port
3. Added 2 new functions
> rte_eth_dev_get_port_by_name
> rte_eth_dev_get_port_by_addr
4. Fix return error(ENOMEM) in function rte_pmd_mpipe_devinit
Compiled on Linux for following targets
> x86_64-native-linuxapp-gcc
> x86_64-native-linuxapp-clang
> x86_x32-native-linuxapp-gcc
Compiled on FreeBSD for following targets
> x86_64-native-bsdapp-clang
> x86_64-native-bsdapp-gcc
Tested on Linux/FreeBSD:
> port attach eth_null
> port start all
> port stop all
> port close all
> port detach 0
> port attach eth_null
> port start all
> port stop all
> port close all
> port detach 0
Successful run of checkpatch.pl on the diffs
Successful validate_abi on Linux for following targets
> x86_64-native-linuxapp-gcc
> x86_64-native-linuxapp-clang
Signed-off-by: Ravi Kerur <rkerur at gmail.com>
---
lib/librte_ether/rte_ethdev.c | 116 +++++++++++++++++++++++-------------------
1 file changed, 63 insertions(+), 53 deletions(-)
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index b309309..e4b8e41 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -442,32 +442,6 @@ rte_eth_dev_get_device_type(uint8_t port_id)
}
static int
-rte_eth_dev_save(struct rte_eth_dev *devs, size_t size)
-{
- if ((devs == NULL) ||
- (size != sizeof(struct rte_eth_dev) * RTE_MAX_ETHPORTS))
- return -EINVAL;
-
- /* save current rte_eth_devices */
- memcpy(devs, rte_eth_devices, size);
- return 0;
-}
-
-static int
-rte_eth_dev_get_changed_port(struct rte_eth_dev *devs, uint8_t *port_id)
-{
- if ((devs == NULL) || (port_id == NULL))
- return -EINVAL;
-
- /* check which port was attached or detached */
- for (*port_id = 0; *port_id < RTE_MAX_ETHPORTS; (*port_id)++, devs++) {
- if (rte_eth_devices[*port_id].attached ^ devs->attached)
- return 0;
- }
- return -ENODEV;
-}
-
-static int
rte_eth_dev_get_addr_by_port(uint8_t port_id, struct rte_pci_addr *addr)
{
VALID_PORTID_OR_ERR_RET(port_id, -EINVAL);
@@ -501,6 +475,59 @@ rte_eth_dev_get_name_by_port(uint8_t port_id, char *name)
}
static int
+rte_eth_dev_get_port_by_name(const char *name, uint8_t *port_id)
+{
+ int i;
+
+ if (name == NULL) {
+ PMD_DEBUG_TRACE("Null pointer is specified\n");
+ return -EINVAL;
+ }
+
+ *port_id = RTE_MAX_ETHPORTS;
+
+ for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
+
+ if (!strncmp(name,
+ rte_eth_dev_data[i].name, strlen(name))) {
+
+ *port_id = i;
+
+ return 0;
+ }
+ }
+ return -ENODEV;
+}
+
+static int
+rte_eth_dev_get_port_by_addr(const struct rte_pci_addr *addr, uint8_t *port_id)
+{
+ int i;
+ struct rte_pci_device *pci_dev = NULL;
+
+ if (addr == NULL) {
+ PMD_DEBUG_TRACE("Null pointer is specified\n");
+ return -EINVAL;
+ }
+
+ *port_id = RTE_MAX_ETHPORTS;
+
+ for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
+
+ pci_dev = rte_eth_devices[i].pci_dev;
+
+ if (pci_dev &&
+ !rte_eal_compare_pci_addr(&pci_dev->addr, addr)) {
+
+ *port_id = i;
+
+ return 0;
+ }
+ }
+ return -ENODEV;
+}
+
+static int
rte_eth_dev_is_detachable(uint8_t port_id)
{
uint32_t drv_flags;
@@ -530,30 +557,19 @@ rte_eth_dev_is_detachable(uint8_t port_id)
static int
rte_eth_dev_attach_pdev(struct rte_pci_addr *addr, uint8_t *port_id)
{
- uint8_t new_port_id;
- struct rte_eth_dev devs[RTE_MAX_ETHPORTS];
-
if ((addr == NULL) || (port_id == NULL))
goto err;
- /* save current port status */
- if (rte_eth_dev_save(devs, sizeof(devs)))
- goto err;
/* re-construct pci_device_list */
if (rte_eal_pci_scan())
goto err;
- /* invoke probe func of the driver can handle the new device.
- * TODO:
- * rte_eal_pci_probe_one() should return port_id.
- * And rte_eth_dev_save() and rte_eth_dev_get_changed_port()
- * should be removed. */
+ /* Invoke probe func of the driver can handle the new device. */
if (rte_eal_pci_probe_one(addr))
goto err;
- /* get port_id enabled by above procedures */
- if (rte_eth_dev_get_changed_port(devs, &new_port_id))
+
+ if (rte_eth_dev_get_port_by_addr(addr, port_id))
goto err;
- *port_id = new_port_id;
return 0;
err:
RTE_LOG(ERR, EAL, "Driver, cannot attach the device\n");
@@ -600,8 +616,6 @@ static int
rte_eth_dev_attach_vdev(const char *vdevargs, uint8_t *port_id)
{
char *name = NULL, *args = NULL;
- uint8_t new_port_id;
- struct rte_eth_dev devs[RTE_MAX_ETHPORTS];
int ret = -1;
if ((vdevargs == NULL) || (port_id == NULL))
@@ -611,22 +625,18 @@ rte_eth_dev_attach_vdev(const char *vdevargs, uint8_t
*port_id)
if (rte_eal_parse_devargs_str(vdevargs, &name, &args))
goto end;
- /* save current port status */
- if (rte_eth_dev_save(devs, sizeof(devs)))
- goto end;
/* walk around dev_driver_list to find the driver of the device,
- * then invoke probe function o the driver.
- * TODO:
- * rte_eal_vdev_init() should return port_id,
- * And rte_eth_dev_save() and rte_eth_dev_get_changed_port()
- * should be removed. */
+ * then invoke probe function of the driver.
+ * rte_eal_vdev_init() updates port_id allocated after
+ * initialization.
+ */
if (rte_eal_vdev_init(name, args))
goto end;
- /* get port_id enabled by above procedures */
- if (rte_eth_dev_get_changed_port(devs, &new_port_id))
+
+ if (rte_eth_dev_get_port_by_name(name, port_id))
goto end;
+
ret = 0;
- *port_id = new_port_id;
end:
if (name)
free(name);
--
1.9.1
