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ethdev: add priority flow control configuration

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Signed-off-by: Intel
This commit is contained in:
Intel 2012-12-20 00:00:00 +01:00 committed by Thomas Monjalon
parent 46375cfa2c
commit 92e1631420
2 changed files with 55 additions and 5 deletions
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27
lib/librte_ether/rte_ethdev.c
View File

@ -1381,13 +1381,30 @@ rte_eth_dev_flow_ctrl_set(uint8_t port_id, struct rte_eth_fc_conf *fc_conf)
}
dev = &rte_eth_devices[port_id];
/* High water, low water validation are device specific */
FUNC_PTR_OR_ERR_RET(*dev->dev_ops->flow_ctrl_set, -ENOTSUP);
if (*dev->dev_ops->flow_ctrl_set)
return (*dev->dev_ops->flow_ctrl_set)(dev, fc_conf);
return (*dev->dev_ops->flow_ctrl_set)(dev, fc_conf);
}
return -ENOTSUP;
int
rte_eth_dev_priority_flow_ctrl_set(uint8_t port_id, struct rte_eth_pfc_conf *pfc_conf)
{
struct rte_eth_dev *dev;
if (port_id >= nb_ports) {
PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
return (-ENODEV);
}
if (pfc_conf->priority > (ETH_DCB_NUM_USER_PRIORITIES - 1)) {
PMD_DEBUG_TRACE("Invalid priority, only 0-7 allowed\n");
return (-EINVAL);
}
dev = &rte_eth_devices[port_id];
/* High water, low water validation are device specific */
if (*dev->dev_ops->priority_flow_ctrl_set)
return (*dev->dev_ops->priority_flow_ctrl_set)(dev, pfc_conf);
return (-ENOTSUP);
}
int

33
lib/librte_ether/rte_ethdev.h
View File

@ -439,6 +439,16 @@ struct rte_eth_fc_conf {
enum rte_eth_fc_mode mode; /**< Link flow control mode */
};
/**
* A structure used to configure Ethernet priority flow control parameter.
* These parameters will be configured into the register of the NIC.
* Please refer to the corresponding data sheet for proper value.
*/
struct rte_eth_pfc_conf {
struct rte_eth_fc_conf fc; /**< General flow control parameter. */
uint8_t priority; /**< VLAN User Priority. */
};
/**
* Flow Director setting modes: none (default), signature or perfect.
*/
@ -791,6 +801,10 @@ typedef int (*flow_ctrl_set_t)(struct rte_eth_dev *dev,
struct rte_eth_fc_conf *fc_conf);
/**< @internal Setup flow control parameter on an Ethernet device */
typedef int (*priority_flow_ctrl_set_t)(struct rte_eth_dev *dev,
struct rte_eth_pfc_conf *pfc_conf);
/**< @internal Setup priority flow control parameter on an Ethernet device */
typedef int (*eth_dev_led_on_t)(struct rte_eth_dev *dev);
/**< @internal Turn on SW controllable LED on an Ethernet device */
@ -835,6 +849,7 @@ struct eth_dev_ops {
eth_dev_led_on_t dev_led_on; /**< Turn on LED. */
eth_dev_led_off_t dev_led_off; /**< Turn off LED. */
flow_ctrl_set_t flow_ctrl_set; /**< Setup flow control. */
priority_flow_ctrl_set_t priority_flow_ctrl_set; /**< Setup priority flow control.*/
eth_mac_addr_remove_t mac_addr_remove; /**< Remove MAC address */
eth_mac_addr_add_t mac_addr_add; /**< Add a MAC address */
@ -2016,6 +2031,24 @@ int rte_eth_led_off(uint8_t port_id);
int rte_eth_dev_flow_ctrl_set(uint8_t port_id,
struct rte_eth_fc_conf *fc_conf);
/**
* Configure the Ethernet priority flow control under DCB environment
* for Ethernet device.
*
* @param port_id
* The port identifier of the Ethernet device.
* @param pfc_conf
* The pointer to the structure of the priority flow control parameters.
* @return
* - (0) if successful.
* - (-ENOTSUP) if hardware doesn't support priority flow control mode.
* - (-ENODEV) if *port_id* invalid.
* - (-EINVAL) if bad parameter
* - (-EIO) if flow control setup failure
*/
int rte_eth_dev_priority_flow_ctrl_set(uint8_t port_id,
struct rte_eth_pfc_conf *pfc_conf);
/**
* Add a MAC address to an internal array of addresses used to enable whitelist
* filtering to accept packets only if the destination MAC address matches.