/**
* alloc_ctxt_rcv_groups - initialize expected receive groups
* @rcd - the context to add the groupings to
*/
int hfi1_alloc_ctxt_rcv_groups(struct hfi1_ctxtdata *rcd)
{
struct hfi1_devdata *dd = rcd->dd;
u32 tidbase;
struct tid_group *grp;
int i;
u32 ngroups;
ngroups = rcd->expected_count / dd->rcv_entries.group_size;
rcd->groups =
kcalloc_node(ngroups, sizeof(*rcd->groups),
GFP_KERNEL, rcd->numa_id);
if (!rcd->groups)
return -ENOMEM;
tidbase = rcd->expected_base;
for (i = 0; i < ngroups; i++) {
grp = &rcd->groups[i];
grp->size = dd->rcv_entries.group_size;
grp->base = tidbase;
tid_group_add_tail(grp, &rcd->tid_group_list);
tidbase += dd->rcv_entries.group_size;
}
return 0;
}
static int ndev_init_isr(struct amd_ntb_dev *ndev,
int msix_min, int msix_max)
{
struct pci_dev *pdev;
int rc, i, msix_count, node;
pdev = ndev->ntb.pdev;
node = dev_to_node(&pdev->dev);
ndev->db_mask = ndev->db_valid_mask;
/* Try to set up msix irq */
ndev->vec = kcalloc_node(msix_max, sizeof(*ndev->vec),
GFP_KERNEL, node);
if (!ndev->vec)
goto err_msix_vec_alloc;
ndev->msix = kcalloc_node(msix_max, sizeof(*ndev->msix),
GFP_KERNEL, node);
if (!ndev->msix)
goto err_msix_alloc;
for (i = 0; i < msix_max; ++i)
ndev->msix[i].entry = i;
msix_count = pci_enable_msix_range(pdev, ndev->msix,
msix_min, msix_max);
if (msix_count < 0)
goto err_msix_enable;
/* NOTE: Disable MSIX if msix count is less than 16 because of
* hardware limitation.
*/
if (msix_count < msix_min) {
pci_disable_msix(pdev);
goto err_msix_enable;
}
for (i = 0; i < msix_count; ++i) {
ndev->vec[i].ndev = ndev;
ndev->vec[i].num = i;
rc = request_irq(ndev->msix[i].vector, ndev_vec_isr, 0,
"ndev_vec_isr", &ndev->vec[i]);
if (rc)
goto err_msix_request;
}
dev_dbg(&pdev->dev, "Using msix interrupts\n");
ndev->db_count = msix_min;
ndev->msix_vec_count = msix_max;
return 0;
err_msix_request:
while (i-- > 0)
free_irq(ndev->msix[i].vector, &ndev->vec[i]);
pci_disable_msix(pdev);
err_msix_enable:
kfree(ndev->msix);
err_msix_alloc:
kfree(ndev->vec);
err_msix_vec_alloc:
ndev->msix = NULL;
ndev->vec = NULL;
/* Try to set up msi irq */
rc = pci_enable_msi(pdev);
if (rc)
goto err_msi_enable;
rc = request_irq(pdev->irq, ndev_irq_isr, 0,
"ndev_irq_isr", ndev);
if (rc)
goto err_msi_request;
dev_dbg(&pdev->dev, "Using msi interrupts\n");
ndev->db_count = 1;
ndev->msix_vec_count = 1;
return 0;
err_msi_request:
pci_disable_msi(pdev);
err_msi_enable:
/* Try to set up intx irq */
pci_intx(pdev, 1);
rc = request_irq(pdev->irq, ndev_irq_isr, IRQF_SHARED,
"ndev_irq_isr", ndev);
if (rc)
goto err_intx_request;
dev_dbg(&pdev->dev, "Using intx interrupts\n");
ndev->db_count = 1;
ndev->msix_vec_count = 1;
return 0;
err_intx_request:
return rc;
}
static inline unsigned long *blk_alloc_zone_bitmap(int node,
unsigned int nr_zones)
{
return kcalloc_node(BITS_TO_LONGS(nr_zones), sizeof(unsigned long),
GFP_NOIO, node);
}
