[v2,5/6] dma/hisilicon: support multi-process
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Commit Message
This patch add multi-process support for Kunpeng DMA devices.
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
---
drivers/dma/hisilicon/hisi_dmadev.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
@@ -392,8 +392,10 @@ hisi_dma_stop(struct rte_dma_dev *dev)
static int
hisi_dma_close(struct rte_dma_dev *dev)
{
- /* The dmadev already stopped */
- hisi_dma_free_iomem(dev->data->dev_private);
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ /* The dmadev already stopped */
+ hisi_dma_free_iomem(dev->data->dev_private);
+ }
return 0;
}
@@ -815,11 +817,13 @@ hisi_dma_create(struct rte_pci_device *pci_dev, uint8_t queue_id,
hw->cq_head_reg = hisi_dma_queue_regaddr(hw,
HISI_DMA_QUEUE_CQ_HEAD_REG);
- ret = hisi_dma_reset_hw(hw);
- if (ret) {
- HISI_DMA_LOG(ERR, "%s init device fail!", name);
- (void)rte_dma_pmd_release(name);
- return -EIO;
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ ret = hisi_dma_reset_hw(hw);
+ if (ret) {
+ HISI_DMA_LOG(ERR, "%s init device fail!", name);
+ (void)rte_dma_pmd_release(name);
+ return -EIO;
+ }
}
dev->state = RTE_DMA_DEV_READY;
@@ -872,7 +876,8 @@ hisi_dma_probe(struct rte_pci_driver *pci_drv __rte_unused,
return ret;
HISI_DMA_LOG(DEBUG, "%s read PCI revision: 0x%x", name, revision);
- hisi_dma_init_gbl(pci_dev->mem_resource[2].addr, revision);
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+ hisi_dma_init_gbl(pci_dev->mem_resource[2].addr, revision);
for (i = 0; i < HISI_DMA_MAX_HW_QUEUES; i++) {
ret = hisi_dma_create(pci_dev, i, revision);