[dpdk-dev] [PATCH v6 12/70] ethdev: use contiguous allocation for DMA memory

Anatoly Burakov anatoly.burakov at intel.com
Wed Apr 11 14:29:47 CEST 2018


All hardware drivers should allocate IOVA-contiguous
memzones for their hardware resources.

This fixes the following drivers in one go:

grep -Rl rte_eth_dma_zone_reserve drivers/

drivers/net/avf/avf_rxtx.c
drivers/net/thunderx/nicvf_ethdev.c
drivers/net/e1000/igb_rxtx.c
drivers/net/e1000/em_rxtx.c
drivers/net/fm10k/fm10k_ethdev.c
drivers/net/vmxnet3/vmxnet3_rxtx.c
drivers/net/liquidio/lio_rxtx.c
drivers/net/i40e/i40e_rxtx.c
drivers/net/sfc/sfc.c
drivers/net/ixgbe/ixgbe_rxtx.c
drivers/net/nfp/nfp_net.c

Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
Tested-by: Santosh Shukla <santosh.shukla at caviumnetworks.com>
Tested-by: Hemant Agrawal <hemant.agrawal at nxp.com>
Tested-by: Gowrishankar Muthukrishnan <gowrishankar.m at linux.vnet.ibm.com>
---
 lib/librte_ether/rte_ethdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 2c74f7e..d0cf0e7 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -3403,7 +3403,8 @@ rte_eth_dma_zone_reserve(const struct rte_eth_dev *dev, const char *ring_name,
 	if (mz)
 		return mz;
 
-	return rte_memzone_reserve_aligned(z_name, size, socket_id, 0, align);
+	return rte_memzone_reserve_aligned(z_name, size, socket_id,
+			RTE_MEMZONE_IOVA_CONTIG, align);
 }
 
 int
-- 
2.7.4


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