On Sun, Mar 20, 2022 at 01:03:51AM +0800, Xiao Yang wrote:
> Part of enum ib_device_cap_flags are used by ibv_query_device(3)
> or ibv_query_device_ex(3), so we define them in
> include/uapi/rdma/ib_user_verbs.h and only expose them to userspace.
>
> Signed-off-by: Xiao Yang <yangx.jy@xxxxxxxxxxx>
> drivers/infiniband/core/uverbs_cmd.c | 6 +-
> include/rdma/ib_verbs.h | 82 +++++++++++++++++++---------
> include/uapi/rdma/ib_user_verbs.h | 31 +++++++++++
> 3 files changed, 91 insertions(+), 28 deletions(-)
>
> diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
> index 6b6393176b3c..ca1045c28fad 100644
> +++ b/drivers/infiniband/core/uverbs_cmd.c
> @@ -337,7 +337,8 @@ static void copy_query_dev_fields(struct ib_ucontext *ucontext,
> resp->hw_ver = attr->hw_ver;
> resp->max_qp = attr->max_qp;
> resp->max_qp_wr = attr->max_qp_wr;
> - resp->device_cap_flags = lower_32_bits(attr->device_cap_flags);
> + resp->device_cap_flags = lower_32_bits(attr->device_cap_flags &
> + UVERBS_DEVICE_CAP_FLAGS_MASK);
> resp->max_sge = min(attr->max_send_sge, attr->max_recv_sge);
> resp->max_sge_rd = attr->max_sge_rd;
> resp->max_cq = attr->max_cq;
> @@ -3618,7 +3619,8 @@ static int ib_uverbs_ex_query_device(struct uverbs_attr_bundle *attrs)
>
> resp.timestamp_mask = attr.timestamp_mask;
> resp.hca_core_clock = attr.hca_core_clock;
> - resp.device_cap_flags_ex = attr.device_cap_flags;
> + resp.device_cap_flags_ex = attr.device_cap_flags &
> + UVERBS_DEVICE_CAP_FLAGS_MASK;
> resp.rss_caps.supported_qpts = attr.rss_caps.supported_qpts;
> resp.rss_caps.max_rwq_indirection_tables =
> attr.rss_caps.max_rwq_indirection_tables;
> diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
> index e5455f6e0d82..54f0045942ca 100644
> +++ b/include/rdma/ib_verbs.h
> @@ -219,22 +219,41 @@ enum rdma_link_layer {
> IB_LINK_LAYER_ETHERNET,
> };
>
> +#define UVERBS_DEVICE_CAP_FLAGS_MASK 0x1427B67FFF
This needs to be expressed as a | of constants
> enum ib_device_cap_flags {
> - IB_DEVICE_RESIZE_MAX_WR = (1 << 0),
> - IB_DEVICE_BAD_PKEY_CNTR = (1 << 1),
> - IB_DEVICE_BAD_QKEY_CNTR = (1 << 2),
> - IB_DEVICE_RAW_MULTI = (1 << 3),
> - IB_DEVICE_AUTO_PATH_MIG = (1 << 4),
> - IB_DEVICE_CHANGE_PHY_PORT = (1 << 5),
> - IB_DEVICE_UD_AV_PORT_ENFORCE = (1 << 6),
> - IB_DEVICE_CURR_QP_STATE_MOD = (1 << 7),
> - IB_DEVICE_SHUTDOWN_PORT = (1 << 8),
> - /* Not in use, former INIT_TYPE = (1 << 9),*/
> - IB_DEVICE_PORT_ACTIVE_EVENT = (1 << 10),
> - IB_DEVICE_SYS_IMAGE_GUID = (1 << 11),
> - IB_DEVICE_RC_RNR_NAK_GEN = (1 << 12),
> - IB_DEVICE_SRQ_RESIZE = (1 << 13),
> - IB_DEVICE_N_NOTIFY_CQ = (1 << 14),
> + IB_DEVICE_RESIZE_MAX_WR =
> + IB_UVERBS_DEVICE_RESIZE_MAX_WR,
> + IB_DEVICE_BAD_PKEY_CNTR =
> + IB_UVERBS_DEVICE_BAD_PKEY_CNTR,
> + IB_DEVICE_BAD_QKEY_CNTR =
> + IB_UVERBS_DEVICE_BAD_QKEY_CNTR,
> + IB_DEVICE_RAW_MULTI =
> + IB_UVERBS_DEVICE_RAW_MULTI,
> + IB_DEVICE_AUTO_PATH_MIG =
> + IB_UVERBS_DEVICE_AUTO_PATH_MIG,
> + IB_DEVICE_CHANGE_PHY_PORT =
> + IB_UVERBS_DEVICE_CHANGE_PHY_PORT,
> + IB_DEVICE_UD_AV_PORT_ENFORCE =
> + IB_UVERBS_DEVICE_UD_AV_PORT_ENFORCE,
> + IB_DEVICE_CURR_QP_STATE_MOD =
> + IB_UVERBS_DEVICE_CURR_QP_STATE_MOD,
> + IB_DEVICE_SHUTDOWN_PORT =
> + IB_UVERBS_DEVICE_SHUTDOWN_PORT,
> + /*
> + * IB_DEVICE_INIT_TYPE =
> + * IB_UVERBS_DEVICE_INIT_TYPE, (not in use)
> + */
> + IB_DEVICE_PORT_ACTIVE_EVENT =
> + IB_UVERBS_DEVICE_PORT_ACTIVE_EVENT,
> + IB_DEVICE_SYS_IMAGE_GUID =
> + IB_UVERBS_DEVICE_SYS_IMAGE_GUID,
> + IB_DEVICE_RC_RNR_NAK_GEN =
> + IB_UVERBS_DEVICE_RC_RNR_NAK_GEN,
> + IB_DEVICE_SRQ_RESIZE =
> + IB_UVERBS_DEVICE_SRQ_RESIZE,
> + IB_DEVICE_N_NOTIFY_CQ =
> + IB_UVERBS_DEVICE_N_NOTIFY_CQ,
>
> /*
> * This device supports a per-device lkey or stag that can be
> @@ -245,7 +264,8 @@ enum ib_device_cap_flags {
> */
> IB_DEVICE_LOCAL_DMA_LKEY = (1 << 15),
> /* Reserved, old SEND_W_INV = (1 << 16),*/
> - IB_DEVICE_MEM_WINDOW = (1 << 17),
> + IB_DEVICE_MEM_WINDOW =
> + IB_UVERBS_DEVICE_MEM_WINDOW,
> /*
> * Devices should set IB_DEVICE_UD_IP_SUM if they support
> * insertion of UDP and TCP checksum on outgoing UD IPoIB
> @@ -253,9 +273,11 @@ enum ib_device_cap_flags {
> * incoming messages. Setting this flag implies that the
> * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode.
> */
> - IB_DEVICE_UD_IP_CSUM = (1 << 18),
> + IB_DEVICE_UD_IP_CSUM =
> + IB_UVERBS_DEVICE_UD_IP_CSUM,
> IB_DEVICE_UD_TSO = (1 << 19),
> - IB_DEVICE_XRC = (1 << 20),
> + IB_DEVICE_XRC =
> + IB_UVERBS_DEVICE_XRC,
>
> /*
> * This device supports the IB "base memory management extension",
> @@ -266,13 +288,18 @@ enum ib_device_cap_flags {
> * IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the
> * stag.
> */
> - IB_DEVICE_MEM_MGT_EXTENSIONS = (1 << 21),
> + IB_DEVICE_MEM_MGT_EXTENSIONS =
> + IB_UVERBS_DEVICE_MEM_MGT_EXTENSIONS,
> IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1 << 22),
> - IB_DEVICE_MEM_WINDOW_TYPE_2A = (1 << 23),
> - IB_DEVICE_MEM_WINDOW_TYPE_2B = (1 << 24),
> - IB_DEVICE_RC_IP_CSUM = (1 << 25),
> + IB_DEVICE_MEM_WINDOW_TYPE_2A =
> + IB_UVERBS_DEVICE_MEM_WINDOW_TYPE_2A,
> + IB_DEVICE_MEM_WINDOW_TYPE_2B =
> + IB_UVERBS_DEVICE_MEM_WINDOW_TYPE_2B,
> + IB_DEVICE_RC_IP_CSUM =
> + IB_UVERBS_DEVICE_RC_IP_CSUM,
> /* Deprecated. Please use IB_RAW_PACKET_CAP_IP_CSUM. */
> - IB_DEVICE_RAW_IP_CSUM = (1 << 26),
> + IB_DEVICE_RAW_IP_CSUM =
> + IB_UVERBS_DEVICE_RAW_IP_CSUM,
> /*
> * Devices should set IB_DEVICE_CROSS_CHANNEL if they
> * support execution of WQEs that involve synchronization
> @@ -280,16 +307,19 @@ enum ib_device_cap_flags {
> * by hardware.
> */
> IB_DEVICE_CROSS_CHANNEL = (1 << 27),
> - IB_DEVICE_MANAGED_FLOW_STEERING = (1 << 29),
> + IB_DEVICE_MANAGED_FLOW_STEERING =
> + IB_UVERBS_DEVICE_MANAGED_FLOW_STEERING,
> IB_DEVICE_INTEGRITY_HANDOVER = (1 << 30),
> IB_DEVICE_ON_DEMAND_PAGING = (1ULL << 31),
> IB_DEVICE_SG_GAPS_REG = (1ULL << 32),
> IB_DEVICE_VIRTUAL_FUNCTION = (1ULL << 33),
> /* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */
> - IB_DEVICE_RAW_SCATTER_FCS = (1ULL << 34),
> + IB_DEVICE_RAW_SCATTER_FCS =
> + IB_UVERBS_DEVICE_RAW_SCATTER_FCS,
> IB_DEVICE_RDMA_NETDEV_OPA = (1ULL << 35),
> /* The device supports padding incoming writes to cacheline. */
> - IB_DEVICE_PCI_WRITE_END_PADDING = (1ULL << 36),
> + IB_DEVICE_PCI_WRITE_END_PADDING =
> + IB_UVERBS_DEVICE_PCI_WRITE_END_PADDING,
> IB_DEVICE_ALLOW_USER_UNREG = (1ULL << 37),
> };
This should be reformatted, no reason to have a = indented way out
like that
> +enum ib_uverbs_device_cap_flags {
> + IB_UVERBS_DEVICE_RESIZE_MAX_WR = (1 << 0),
> + IB_UVERBS_DEVICE_BAD_PKEY_CNTR = (1 << 1),
> + IB_UVERBS_DEVICE_BAD_QKEY_CNTR = (1 << 2),
> + IB_UVERBS_DEVICE_RAW_MULTI = (1 << 3),
> + IB_UVERBS_DEVICE_AUTO_PATH_MIG = (1 << 4),
> + IB_UVERBS_DEVICE_CHANGE_PHY_PORT = (1 << 5),
> + IB_UVERBS_DEVICE_UD_AV_PORT_ENFORCE = (1 << 6),
> + IB_UVERBS_DEVICE_CURR_QP_STATE_MOD = (1 << 7),
> + IB_UVERBS_DEVICE_SHUTDOWN_PORT = (1 << 8),
> + /* IB_UVERBS_DEVICE_INIT_TYPE = (1 << 9), (not in use) */
> + IB_UVERBS_DEVICE_PORT_ACTIVE_EVENT = (1 << 10),
> + IB_UVERBS_DEVICE_SYS_IMAGE_GUID = (1 << 11),
> + IB_UVERBS_DEVICE_RC_RNR_NAK_GEN = (1 << 12),
> + IB_UVERBS_DEVICE_SRQ_RESIZE = (1 << 13),
> + IB_UVERBS_DEVICE_N_NOTIFY_CQ = (1 << 14),
> + IB_UVERBS_DEVICE_MEM_WINDOW = (1 << 17),
> + IB_UVERBS_DEVICE_UD_IP_CSUM = (1 << 18),
> + IB_UVERBS_DEVICE_XRC = (1 << 20),
> + IB_UVERBS_DEVICE_MEM_MGT_EXTENSIONS = (1 << 21),
> + IB_UVERBS_DEVICE_MEM_WINDOW_TYPE_2A = (1 << 23),
> + IB_UVERBS_DEVICE_MEM_WINDOW_TYPE_2B = (1 << 24),
> + IB_UVERBS_DEVICE_RC_IP_CSUM = (1 << 25),
> + /* Deprecated. Please use IB_UVERBS_RAW_PACKET_CAP_IP_CSUM. */
> + IB_UVERBS_DEVICE_RAW_IP_CSUM = (1 << 26),
> + IB_UVERBS_DEVICE_MANAGED_FLOW_STEERING = (1 << 29),
> + /* Deprecated. Please use IB_UVERBS_RAW_PACKET_CAP_SCATTER_FCS. */
> + IB_UVERBS_DEVICE_RAW_SCATTER_FCS = (1ULL << 34),
> + IB_UVERBS_DEVICE_PCI_WRITE_END_PADDING = (1ULL << 36),
> +};
Also please drop the horizontal alignment for new code
> +
> enum ib_uverbs_raw_packet_caps {
> IB_UVERBS_RAW_PACKET_CAP_CVLAN_STRIPPING = (1 << 0),
> IB_UVERBS_RAW_PACKET_CAP_SCATTER_FCS = (1 << 1),
