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net/i40e: support NIC reset

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Reset a NIC by calling dev_uninit() and then dev_init().
Go through the same way in NIC PCI remove without release
of ethdev resource and then NIC PCI probe function without
ethdev resource allocation.

Signed-off-by: Wei Dai <wei.dai@intel.com>
This commit is contained in:
Wei Dai 2017-07-23 17:15:11 +08:00 committed by Thomas Monjalon
parent 03b92b70da
commit c162832a09
2 changed files with 47 additions and 0 deletions
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28
drivers/net/i40e/i40e_ethdev.c
View File

@ -250,6 +250,7 @@ static int i40e_dev_configure(struct rte_eth_dev *dev);
static int i40e_dev_start(struct rte_eth_dev *dev);
static void i40e_dev_stop(struct rte_eth_dev *dev);
static void i40e_dev_close(struct rte_eth_dev *dev);
static int i40e_dev_reset(struct rte_eth_dev *dev);
static void i40e_dev_promiscuous_enable(struct rte_eth_dev *dev);
static void i40e_dev_promiscuous_disable(struct rte_eth_dev *dev);
static void i40e_dev_allmulticast_enable(struct rte_eth_dev *dev);
@ -449,6 +450,7 @@ static const struct eth_dev_ops i40e_eth_dev_ops = {
.dev_start = i40e_dev_start,
.dev_stop = i40e_dev_stop,
.dev_close = i40e_dev_close,
.dev_reset = i40e_dev_reset,
.promiscuous_enable = i40e_dev_promiscuous_enable,
.promiscuous_disable = i40e_dev_promiscuous_disable,
.allmulticast_enable = i40e_dev_allmulticast_enable,
@ -2165,6 +2167,32 @@ i40e_dev_close(struct rte_eth_dev *dev)
I40E_WRITE_FLUSH(hw);
}
/*
* Reset PF device only to re-initialize resources in PMD layer
*/
static int
i40e_dev_reset(struct rte_eth_dev *dev)
{
int ret;
/* When a DPDK PMD PF begin to reset PF port, it should notify all
* its VF to make them align with it. The detailed notification
* mechanism is PMD specific. As to i40e PF, it is rather complex.
* To avoid unexpected behavior in VF, currently reset of PF with
* SR-IOV activation is not supported. It might be supported later.
*/
if (dev->data->sriov.active)
return -ENOTSUP;
ret = eth_i40e_dev_uninit(dev);
if (ret)
return ret;
ret = eth_i40e_dev_init(dev);
return ret;
}
static void
i40e_dev_promiscuous_enable(struct rte_eth_dev *dev)
{

19
drivers/net/i40e/i40e_ethdev_vf.c
View File

@ -122,6 +122,7 @@ static void i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask);
static int i40evf_vlan_pvid_set(struct rte_eth_dev *dev, uint16_t pvid,
int on);
static void i40evf_dev_close(struct rte_eth_dev *dev);
static int i40evf_dev_reset(struct rte_eth_dev *dev);
static void i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev);
static void i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev);
static void i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev);
@ -203,6 +204,7 @@ static const struct eth_dev_ops i40evf_eth_dev_ops = {
.xstats_get_names = i40evf_dev_xstats_get_names,
.xstats_reset = i40evf_dev_xstats_reset,
.dev_close = i40evf_dev_close,
.dev_reset = i40evf_dev_reset,
.dev_infos_get = i40evf_dev_info_get,
.dev_supported_ptypes_get = i40e_dev_supported_ptypes_get,
.vlan_filter_set = i40evf_vlan_filter_set,
@ -2373,6 +2375,23 @@ i40evf_dev_close(struct rte_eth_dev *dev)
i40evf_disable_irq0(hw);
}
/*
* Reset VF device only to re-initialize resources in PMD layer
*/
static int
i40evf_dev_reset(struct rte_eth_dev *dev)
{
int ret;
ret = i40evf_dev_uninit(dev);
if (ret)
return ret;
ret = i40evf_dev_init(dev);
return ret;
}
static int
i40evf_get_rss_lut(struct i40e_vsi *vsi, uint8_t *lut, uint16_t lut_size)
{