diff options
author | Jason Gunthorpe <jgg@nvidia.com> | 2022-04-04 18:26:42 +0300 |
---|---|---|
committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-04-06 21:02:13 +0300 |
commit | e945c653c8e972d1b81a88e474d79f801b60213a (patch) | |
tree | 30144e96874a4b17e19d77c98dee4f7e5fd8e461 /drivers/infiniband/hw/cxgb4 | |
parent | 22cbc6c2681a0a4fe76150270426e763d52353a4 (diff) | |
download | linux-e945c653c8e972d1b81a88e474d79f801b60213a.tar.xz |
RDMA: Split kernel-only global device caps from uverbs device caps
Split out flags from ib_device::device_cap_flags that are only used
internally to the kernel into kernel_cap_flags that is not part of the
uapi. This limits the device_cap_flags to being the same bitmap that will
be copied to userspace.
This cleanly splits out the uverbs flags from the kernel flags to avoid
confusion in the flags bitmap.
Add some short comments describing which each of the kernel flags is
connected to. Remove unused kernel flags.
Link: https://lore.kernel.org/r/0-v2-22c19e565eef+139a-kern_caps_jgg@nvidia.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb4')
-rw-r--r-- | drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 1 | ||||
-rw-r--r-- | drivers/infiniband/hw/cxgb4/provider.c | 8 |
2 files changed, 4 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index 12f33467c672..50cb2259bf87 100644 --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -314,7 +314,6 @@ enum db_state { struct c4iw_dev { struct ib_device ibdev; struct c4iw_rdev rdev; - u32 device_cap_flags; struct xarray cqs; struct xarray qps; struct xarray mrs; diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c index 89f36a3a9af0..246b739ddb2b 100644 --- a/drivers/infiniband/hw/cxgb4/provider.c +++ b/drivers/infiniband/hw/cxgb4/provider.c @@ -269,7 +269,10 @@ static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *pro dev->rdev.lldi.ports[0]->dev_addr); props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type); props->fw_ver = dev->rdev.lldi.fw_vers; - props->device_cap_flags = dev->device_cap_flags; + props->device_cap_flags = IB_DEVICE_MEM_WINDOW; + props->kernel_cap_flags = IBK_LOCAL_DMA_LKEY; + if (fastreg_support) + props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; props->page_size_cap = T4_PAGESIZE_MASK; props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor; props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device; @@ -529,9 +532,6 @@ void c4iw_register_device(struct work_struct *work) pr_debug("c4iw_dev %p\n", dev); addrconf_addr_eui48((u8 *)&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr); - dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW; - if (fastreg_support) - dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; dev->ibdev.local_dma_lkey = 0; dev->ibdev.node_type = RDMA_NODE_RNIC; BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX); |