As part of recent (last September) RDMA changes, the routine ib_get_dma_mr() was deleted and an extra "flags" parameter was added to ib_alloc_pd(). This was all done to stop upper layers from accessing the R-key for unregistered DMA memory regions. It seems that this opens the door...
从内核模块暴露IB内存接口: ib_umem_get()/ib_umem_release() ,可让低级驱动程序控制何时调用 ib_umem_get() 来pin和 DMA 映射用户空间,该方案优于以前在调用 ib_uverbs_reg_mr 中的 reg_user_mr 前后的处理逻辑 。 还将这些函数移至 ib_core 模块而不是 ib_uverbs 中,以便使用它们的驱动程序模块不...
这在概念上类似于套接字 rdma_resolve_addr 获取本地RDMA设备以到达远程地址 rdma_get_cm_event 等待 ...
[422278.843120]ko2iblnd: Unknown symbol ib_get_dma_mr (err -22) [422278.843131]ko2iblnd: disagrees about version of symbol ib_alloc_pd [422278.843132]ko2iblnd: Unknown symbol ib_alloc_pd (err -22) [422278.843143]ko2iblnd: disagrees about version of symbol rdma_set_reuseaddr ...
从内核模块暴露IB内存接口: ib_umem_get()/ib_umem_release() ,可让低级驱动程序控制何时调用 ib_umem_get() 来pin和 DMA 映射用户空间,该方案优于以前在调用 ib_uverbs_reg_mr 中的 reg_user_mr 前后的处理逻辑 。 还将这些函数移至 ib_core 模块而不是 ib_uverbs 中,以便使用它们的驱动程序模块不...
从内核模块暴露IB内存接口: ib_umem_get()/ib_umem_release() ,可让低级驱动程序控制何时调用 ib_umem_get() 来pin和 DMA 映射用户空间,该方案优于以前在调用 ib_uverbs_reg_mr 中的 reg_user_mr 前后的处理逻辑 。 还将这些函数移至 ib_c...
查irdma modinfo irdma [SDS_Admin@rdma65 data]$ modinfo irdma filename: /lib/modules/5.10.38-21.hl05.el7.x86_64/updates/drivers/infiniband/hw/irdma/irdma.ko version: 1.7.72 license: Dual BSD/GPL description: Intel(R) Ethernet Protocol Driver for RDMA ...
+ /* + * This device supports a per-device lkey or stag that can be + * used without performing a memory registration for the local + * memory. Note that ULPs should never check this flag, but + * instead of use the local_dma_lkey flag in the ib_pd structure, ...
highdma: on [fixed] rx-vlan-filter: on vlan-challenged: off [fixed] tx-lockless: off [fixed] netns-local: off [fixed] tx-gso-robust: off [fixed] tx-fcoe-segmentation: off [fixed] tx-gre-segmentation: off [requested on] tx-gre-csum-segmentation: off [requested on] ...
1.解压缩irdma驱动程序压缩包: tar zxf irdma-<version>.tgz 2.构建并安装RDMA驱动程序: cd irdma-<version> ./build.sh By default, the irdma driver is built using in-distro RDMA libraries and modules. Optionally, irdma may also be built using OFED modules. See the ...