[dpdk-dev] [PATCH 3/3] nfp: set device dma mask

[Alejandro Lucero]

 - Just hugepages within the supported range will be available.

Signed-off-by: Alejandro Lucero <alejandro.lucero at netronome.com>
---
 drivers/net/nfp/nfp_net.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index ea5a2a3..e0e444a 100644
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -115,6 +115,14 @@ enum nfp_qcp_ptr {
        NFP_QCP_WRITE_PTR
 };

+#ifndef DMA_64BIT_MASK
+#define DMA_64BIT_MASK  0xffffffffffffffffULL
+#endif
+
+#ifndef DMA_BIT_MASK
+#define DMA_BIT_MASK(n) (((n) == 64) ? DMA_64BIT_MASK : ((1ULL<<(n))-1))
+#endif
+
 /*
  * nfp_qcp_ptr_add - Add the value to the selected pointer of a queue
  * @q: Base address for queue structure
@@ -2441,6 +2449,9 @@ nfp_net_init(struct rte_eth_dev *eth_dev)
        /* Recording current stats counters values */
        nfp_net_stats_reset(eth_dev);

+       /* Setting dma_mask */
+       eth_dev->data->dma_mask = DMA_BIT_MASK(40);
+
        return 0;
 }

-- 
1.9.1