static void aq_pci_remove(struct pci_dev *pdev)
{
struct aq_nic_s *self = pci_get_drvdata(pdev);
if (self->ndev) {
aq_clear_rxnfc_all_rules(self);
if (self->ndev->reg_state == NETREG_REGISTERED)
unregister_netdev(self->ndev);
aq_nic_free_vectors(self);
aq_pci_free_irq_vectors(self);
iounmap(self->aq_hw->mmio);
kfree(self->aq_hw);
pci_release_regions(pdev);
free_netdev(self->ndev);
}
pci_disable_device(pdev);
}
static int aq_set_ringparam(struct net_device *ndev,
struct ethtool_ringparam *ring)
{
int err = 0;
bool ndev_running = false;
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *aq_nic_cfg = aq_nic_get_cfg(aq_nic);
const struct aq_hw_caps_s *hw_caps = aq_nic_cfg->aq_hw_caps;
if (ring->rx_mini_pending || ring->rx_jumbo_pending) {
err = -EOPNOTSUPP;
goto err_exit;
}
if (netif_running(ndev)) {
ndev_running = true;
dev_close(ndev);
}
aq_nic_free_vectors(aq_nic);
aq_nic_cfg->rxds = max(ring->rx_pending, hw_caps->rxds_min);
aq_nic_cfg->rxds = min(aq_nic_cfg->rxds, hw_caps->rxds_max);
aq_nic_cfg->rxds = ALIGN(aq_nic_cfg->rxds, AQ_HW_RXD_MULTIPLE);
aq_nic_cfg->txds = max(ring->tx_pending, hw_caps->txds_min);
aq_nic_cfg->txds = min(aq_nic_cfg->txds, hw_caps->txds_max);
aq_nic_cfg->txds = ALIGN(aq_nic_cfg->txds, AQ_HW_TXD_MULTIPLE);
for (aq_nic->aq_vecs = 0; aq_nic->aq_vecs < aq_nic_cfg->vecs;
aq_nic->aq_vecs++) {
aq_nic->aq_vec[aq_nic->aq_vecs] =
aq_vec_alloc(aq_nic, aq_nic->aq_vecs, aq_nic_cfg);
if (unlikely(!aq_nic->aq_vec[aq_nic->aq_vecs])) {
err = -ENOMEM;
goto err_exit;
}
}
if (ndev_running)
err = dev_open(ndev);
err_exit:
return err;
}
static int aq_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *pci_id)
{
struct aq_nic_s *self;
int err;
struct net_device *ndev;
resource_size_t mmio_pa;
u32 bar;
u32 numvecs;
err = pci_enable_device(pdev);
if (err)
return err;
err = aq_pci_func_init(pdev);
if (err)
goto err_pci_func;
ndev = aq_ndev_alloc();
if (!ndev) {
err = -ENOMEM;
goto err_ndev;
}
self = netdev_priv(ndev);
self->pdev = pdev;
SET_NETDEV_DEV(ndev, &pdev->dev);
pci_set_drvdata(pdev, self);
err = aq_pci_probe_get_hw_by_id(pdev, &self->aq_hw_ops,
&aq_nic_get_cfg(self)->aq_hw_caps);
if (err)
goto err_ioremap;
self->aq_hw = kzalloc(sizeof(*self->aq_hw), GFP_KERNEL);
if (!self->aq_hw) {
err = -ENOMEM;
goto err_ioremap;
}
self->aq_hw->aq_nic_cfg = aq_nic_get_cfg(self);
for (bar = 0; bar < 4; ++bar) {
if (IORESOURCE_MEM & pci_resource_flags(pdev, bar)) {
resource_size_t reg_sz;
mmio_pa = pci_resource_start(pdev, bar);
if (mmio_pa == 0U) {
err = -EIO;
goto err_free_aq_hw;
}
reg_sz = pci_resource_len(pdev, bar);
if ((reg_sz <= 24 /*ATL_REGS_SIZE*/)) {
err = -EIO;
goto err_free_aq_hw;
}
self->aq_hw->mmio = ioremap_nocache(mmio_pa, reg_sz);
if (!self->aq_hw->mmio) {
err = -EIO;
goto err_free_aq_hw;
}
break;
}
}
if (bar == 4) {
err = -EIO;
goto err_free_aq_hw;
}
numvecs = min((u8)AQ_CFG_VECS_DEF,
aq_nic_get_cfg(self)->aq_hw_caps->msix_irqs);
numvecs = min(numvecs, num_online_cpus());
/*enable interrupts */
#if !AQ_CFG_FORCE_LEGACY_INT
err = pci_alloc_irq_vectors(self->pdev, 1, numvecs,
PCI_IRQ_MSIX | PCI_IRQ_MSI |
PCI_IRQ_LEGACY);
if (err < 0)
goto err_hwinit;
numvecs = err;
#endif
self->irqvecs = numvecs;
/* net device init */
aq_nic_cfg_start(self);
aq_nic_ndev_init(self);
err = aq_nic_ndev_register(self);
if (err < 0)
goto err_register;
return 0;
err_register:
aq_nic_free_vectors(self);
aq_pci_free_irq_vectors(self);
err_hwinit:
iounmap(self->aq_hw->mmio);
err_free_aq_hw:
kfree(self->aq_hw);
err_ioremap:
free_netdev(ndev);
err_ndev:
pci_release_regions(pdev);
err_pci_func:
pci_disable_device(pdev);
return err;
}
