/*
* i40e_fdir_setup - reserve and initialize the Flow Director resources
* @pf: board private structure
*/
int
i40e_fdir_setup(struct i40e_pf *pf)
{
struct i40e_hw *hw = I40E_PF_TO_HW(pf);
struct i40e_vsi *vsi;
int err = I40E_SUCCESS;
char z_name[RTE_MEMZONE_NAMESIZE];
const struct rte_memzone *mz = NULL;
struct rte_eth_dev *eth_dev = pf->adapter->eth_dev;
if ((pf->flags & I40E_FLAG_FDIR) == 0) {
PMD_INIT_LOG(ERR, "HW doesn't support FDIR");
return I40E_NOT_SUPPORTED;
}
PMD_DRV_LOG(INFO, "FDIR HW Capabilities: num_filters_guaranteed = %u,"
" num_filters_best_effort = %u.",
hw->func_caps.fd_filters_guaranteed,
hw->func_caps.fd_filters_best_effort);
vsi = pf->fdir.fdir_vsi;
if (vsi) {
PMD_DRV_LOG(INFO, "FDIR initialization has been done.");
return I40E_SUCCESS;
}
/* make new FDIR VSI */
vsi = i40e_vsi_setup(pf, I40E_VSI_FDIR, pf->main_vsi, 0);
if (!vsi) {
PMD_DRV_LOG(ERR, "Couldn't create FDIR VSI.");
return I40E_ERR_NO_AVAILABLE_VSI;
}
pf->fdir.fdir_vsi = vsi;
/*Fdir tx queue setup*/
err = i40e_fdir_setup_tx_resources(pf);
if (err) {
PMD_DRV_LOG(ERR, "Failed to setup FDIR TX resources.");
goto fail_setup_tx;
}
/*Fdir rx queue setup*/
err = i40e_fdir_setup_rx_resources(pf);
if (err) {
PMD_DRV_LOG(ERR, "Failed to setup FDIR RX resources.");
goto fail_setup_rx;
}
err = i40e_tx_queue_init(pf->fdir.txq);
if (err) {
PMD_DRV_LOG(ERR, "Failed to do FDIR TX initialization.");
goto fail_mem;
}
/* need switch on before dev start*/
err = i40e_switch_tx_queue(hw, vsi->base_queue, TRUE);
if (err) {
PMD_DRV_LOG(ERR, "Failed to do fdir TX switch on.");
goto fail_mem;
}
/* Init the rx queue in hardware */
err = i40e_fdir_rx_queue_init(pf->fdir.rxq);
if (err) {
PMD_DRV_LOG(ERR, "Failed to do FDIR RX initialization.");
goto fail_mem;
}
/* switch on rx queue */
err = i40e_switch_rx_queue(hw, vsi->base_queue, TRUE);
if (err) {
PMD_DRV_LOG(ERR, "Failed to do FDIR RX switch on.");
goto fail_mem;
}
/* reserve memory for the fdir programming packet */
snprintf(z_name, sizeof(z_name), "%s_%s_%d",
eth_dev->driver->pci_drv.name,
I40E_FDIR_MZ_NAME,
eth_dev->data->port_id);
mz = i40e_memzone_reserve(z_name, I40E_FDIR_PKT_LEN, SOCKET_ID_ANY);
if (!mz) {
PMD_DRV_LOG(ERR, "Cannot init memzone for "
"flow director program packet.");
err = I40E_ERR_NO_MEMORY;
goto fail_mem;
}
pf->fdir.prg_pkt = mz->addr;
pf->fdir.dma_addr = rte_mem_phy2mch(mz->memseg_id, mz->phys_addr);
pf->fdir.match_counter_index = I40E_COUNTER_INDEX_FDIR(hw->pf_id);
PMD_DRV_LOG(INFO, "FDIR setup successfully, with programming queue %u.",
vsi->base_queue);
return I40E_SUCCESS;
fail_mem:
i40e_dev_rx_queue_release(pf->fdir.rxq);
pf->fdir.rxq = NULL;
fail_setup_rx:
i40e_dev_tx_queue_release(pf->fdir.txq);
pf->fdir.txq = NULL;
fail_setup_tx:
i40e_vsi_release(vsi);
pf->fdir.fdir_vsi = NULL;
return err;
}
/**
* Proceed VF reset operation.
*/
int
i40e_pf_host_vf_reset(struct i40e_pf_vf *vf, bool do_hw_reset)
{
uint32_t val, i;
struct i40e_hw *hw = I40E_PF_TO_HW(vf->pf);
uint16_t vf_id, abs_vf_id, vf_msix_num;
int ret;
struct i40e_virtchnl_queue_select qsel;
if (vf == NULL)
return -EINVAL;
vf_id = vf->vf_idx;
abs_vf_id = vf_id + hw->func_caps.vf_base_id;
/* Notify VF that we are in VFR progress */
I40E_WRITE_REG(hw, I40E_VFGEN_RSTAT1(vf_id), I40E_PF_VFR_INPROGRESS);
/*
* If require a SW VF reset, a VFLR interrupt will be generated,
* this function will be called again. To avoid it,
* disable interrupt first.
*/
if (do_hw_reset) {
vf->state = I40E_VF_INRESET;
val = I40E_READ_REG(hw, I40E_VPGEN_VFRTRIG(vf_id));
val |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
I40E_WRITE_REG(hw, I40E_VPGEN_VFRTRIG(vf_id), val);
I40E_WRITE_FLUSH(hw);
}
#define VFRESET_MAX_WAIT_CNT 100
/* Wait until VF reset is done */
for (i = 0; i < VFRESET_MAX_WAIT_CNT; i++) {
rte_delay_us(10);
val = I40E_READ_REG(hw, I40E_VPGEN_VFRSTAT(vf_id));
if (val & I40E_VPGEN_VFRSTAT_VFRD_MASK)
break;
}
if (i >= VFRESET_MAX_WAIT_CNT) {
PMD_DRV_LOG(ERR, "VF reset timeout\n");
return -ETIMEDOUT;
}
/* This is not first time to do reset, do cleanup job first */
if (vf->vsi) {
/* Disable queues */
memset(&qsel, 0, sizeof(qsel));
for (i = 0; i < vf->vsi->nb_qps; i++)
qsel.rx_queues |= 1 << i;
qsel.tx_queues = qsel.rx_queues;
ret = i40e_pf_host_switch_queues(vf, &qsel, false);
if (ret != I40E_SUCCESS) {
PMD_DRV_LOG(ERR, "Disable VF queues failed\n");
return -EFAULT;
}
/* Disable VF interrupt setting */
vf_msix_num = hw->func_caps.num_msix_vectors_vf;
for (i = 0; i < vf_msix_num; i++) {
if (!i)
val = I40E_VFINT_DYN_CTL0(vf_id);
else
val = I40E_VFINT_DYN_CTLN(((vf_msix_num - 1) *
(vf_id)) + (i - 1));
I40E_WRITE_REG(hw, val, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
}
I40E_WRITE_FLUSH(hw);
/* remove VSI */
ret = i40e_vsi_release(vf->vsi);
if (ret != I40E_SUCCESS) {
PMD_DRV_LOG(ERR, "Release VSI failed\n");
return -EFAULT;
}
}
#define I40E_VF_PCI_ADDR 0xAA
#define I40E_VF_PEND_MASK 0x20
/* Check the pending transactions of this VF */
/* Use absolute VF id, refer to datasheet for details */
I40E_WRITE_REG(hw, I40E_PF_PCI_CIAA, I40E_VF_PCI_ADDR |
(abs_vf_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
for (i = 0; i < VFRESET_MAX_WAIT_CNT; i++) {
rte_delay_us(1);
val = I40E_READ_REG(hw, I40E_PF_PCI_CIAD);
if ((val & I40E_VF_PEND_MASK) == 0)
break;
}
if (i >= VFRESET_MAX_WAIT_CNT) {
PMD_DRV_LOG(ERR, "Wait VF PCI transaction end timeout\n");
return -ETIMEDOUT;
}
/* Reset done, Set COMPLETE flag and clear reset bit */
I40E_WRITE_REG(hw, I40E_VFGEN_RSTAT1(vf_id), I40E_PF_VFR_COMPLETED);
val = I40E_READ_REG(hw, I40E_VPGEN_VFRTRIG(vf_id));
val &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
I40E_WRITE_REG(hw, I40E_VPGEN_VFRTRIG(vf_id), val);
vf->reset_cnt++;
I40E_WRITE_FLUSH(hw);
/* Allocate resource again */
vf->vsi = i40e_vsi_setup(vf->pf, I40E_VSI_SRIOV,
vf->pf->main_vsi, vf->vf_idx);
if (vf->vsi == NULL) {
PMD_DRV_LOG(ERR, "Add vsi failed\n");
return -EFAULT;
}
ret = i40e_pf_vf_queues_mapping(vf);
if (ret != I40E_SUCCESS) {
PMD_DRV_LOG(ERR, "queue mapping error\n");
i40e_vsi_release(vf->vsi);
return -EFAULT;
}
return ret;
}
