diff options
Diffstat (limited to 'drivers/net/ethernet/huawei/hinic3/hinic3_hw_cfg.c')
| -rw-r--r-- | drivers/net/ethernet/huawei/hinic3/hinic3_hw_cfg.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/net/ethernet/huawei/hinic3/hinic3_hw_cfg.c b/drivers/net/ethernet/huawei/hinic3/hinic3_hw_cfg.c index 87d9450c30ca..0599fc4f3fb0 100644 --- a/drivers/net/ethernet/huawei/hinic3/hinic3_hw_cfg.c +++ b/drivers/net/ethernet/huawei/hinic3/hinic3_hw_cfg.c @@ -8,6 +8,49 @@ #include "hinic3_hwif.h" #include "hinic3_mbox.h" +int hinic3_alloc_irqs(struct hinic3_hwdev *hwdev, u16 num, + struct msix_entry *alloc_arr, u16 *act_num) +{ + struct hinic3_irq_info *irq_info; + struct hinic3_irq *curr; + u16 i, found = 0; + + irq_info = &hwdev->cfg_mgmt->irq_info; + mutex_lock(&irq_info->irq_mutex); + for (i = 0; i < irq_info->num_irq && found < num; i++) { + curr = irq_info->irq + i; + if (curr->allocated) + continue; + curr->allocated = true; + alloc_arr[found].vector = curr->irq_id; + alloc_arr[found].entry = curr->msix_entry_idx; + found++; + } + mutex_unlock(&irq_info->irq_mutex); + + *act_num = found; + + return found == 0 ? -ENOMEM : 0; +} + +void hinic3_free_irq(struct hinic3_hwdev *hwdev, u32 irq_id) +{ + struct hinic3_irq_info *irq_info; + struct hinic3_irq *curr; + u16 i; + + irq_info = &hwdev->cfg_mgmt->irq_info; + mutex_lock(&irq_info->irq_mutex); + for (i = 0; i < irq_info->num_irq; i++) { + curr = irq_info->irq + i; + if (curr->irq_id == irq_id) { + curr->allocated = false; + break; + } + } + mutex_unlock(&irq_info->irq_mutex); +} + bool hinic3_support_nic(struct hinic3_hwdev *hwdev) { return hwdev->cfg_mgmt->cap.supp_svcs_bitmap & |