2015-07-30 16:48, Nelio Laranjeiro: > librte_pmd_mlx4.so needs to be linked with libiverbs otherwise, the PMD is not > able to open Mellanox devices and the following message is printed by testpmd > at startup "librte_pmd_mlx4: cannot access device, is mlx4_ib loaded?". > > Applications dependency on libverbs are moved to be only valid in static mode, > in shared mode, applications do not depend on it anymore, > librte_pmd_mlx4.so keeps this dependency and thus is linked with libverbs. > > Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com> > Acked-by: Olivier Matz <olivier.matz at 6wind.com> > --- > Changelog: don't compiled MLX4 PMD when the DPDK is build in combined shared > library.
MLX4 cannot be supported in combined shared library because there is no clean way of adding -libverbs to the combined library. (This comment should be in the commit message) > --- a/drivers/net/Makefile > +++ b/drivers/net/Makefile > @@ -40,7 +40,6 @@ DIRS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += enic > DIRS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += fm10k > DIRS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += i40e > DIRS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += ixgbe > -DIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4 > DIRS-$(CONFIG_RTE_LIBRTE_MPIPE_PMD) += mpipe > DIRS-$(CONFIG_RTE_LIBRTE_PMD_NULL) += null > DIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += pcap > @@ -49,5 +48,10 @@ DIRS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD) += virtio > DIRS-$(CONFIG_RTE_LIBRTE_VMXNET3_PMD) += vmxnet3 > DIRS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += xenvirt > > +# Drivers not support in combined mode This comment is useless. > +ifeq ($(CONFIG_RTE_BUILD_COMBINE_LIBS),n) It can be enabled if building a static combined library. > +DIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4 There is no good reason to move this line.
