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RDMA/nldev: helper functions to add driver attributes
These help rdma drivers to fill out the driver entries. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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2 changed files with 77 additions and 0 deletions
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@ -109,6 +109,72 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
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[RDMA_NLDEV_ATTR_DRIVER_U64] = { .type = NLA_U64 },
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[RDMA_NLDEV_ATTR_DRIVER_U64] = { .type = NLA_U64 },
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};
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};
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static int put_driver_name_print_type(struct sk_buff *msg, const char *name,
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enum rdma_nldev_print_type print_type)
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{
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if (nla_put_string(msg, RDMA_NLDEV_ATTR_DRIVER_STRING, name))
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return -EMSGSIZE;
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if (print_type != RDMA_NLDEV_PRINT_TYPE_UNSPEC &&
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nla_put_u8(msg, RDMA_NLDEV_ATTR_DRIVER_PRINT_TYPE, print_type))
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return -EMSGSIZE;
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return 0;
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}
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static int _rdma_nl_put_driver_u32(struct sk_buff *msg, const char *name,
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enum rdma_nldev_print_type print_type,
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u32 value)
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{
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if (put_driver_name_print_type(msg, name, print_type))
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return -EMSGSIZE;
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if (nla_put_u32(msg, RDMA_NLDEV_ATTR_DRIVER_U32, value))
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return -EMSGSIZE;
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return 0;
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}
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static int _rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name,
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enum rdma_nldev_print_type print_type,
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u64 value)
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{
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if (put_driver_name_print_type(msg, name, print_type))
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return -EMSGSIZE;
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if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_DRIVER_U64, value,
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RDMA_NLDEV_ATTR_PAD))
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return -EMSGSIZE;
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return 0;
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}
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int rdma_nl_put_driver_u32(struct sk_buff *msg, const char *name, u32 value)
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{
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return _rdma_nl_put_driver_u32(msg, name, RDMA_NLDEV_PRINT_TYPE_UNSPEC,
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value);
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}
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EXPORT_SYMBOL(rdma_nl_put_driver_u32);
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int rdma_nl_put_driver_u32_hex(struct sk_buff *msg, const char *name,
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u32 value)
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{
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return _rdma_nl_put_driver_u32(msg, name, RDMA_NLDEV_PRINT_TYPE_HEX,
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value);
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}
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EXPORT_SYMBOL(rdma_nl_put_driver_u32_hex);
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int rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name, u64 value)
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{
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return _rdma_nl_put_driver_u64(msg, name, RDMA_NLDEV_PRINT_TYPE_UNSPEC,
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value);
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}
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EXPORT_SYMBOL(rdma_nl_put_driver_u64);
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int rdma_nl_put_driver_u64_hex(struct sk_buff *msg, const char *name, u64 value)
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{
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return _rdma_nl_put_driver_u64(msg, name, RDMA_NLDEV_PRINT_TYPE_HEX,
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value);
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}
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EXPORT_SYMBOL(rdma_nl_put_driver_u64_hex);
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static int fill_nldev_handle(struct sk_buff *msg, struct ib_device *device)
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static int fill_nldev_handle(struct sk_buff *msg, struct ib_device *device)
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{
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{
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if (nla_put_u32(msg, RDMA_NLDEV_ATTR_DEV_INDEX, device->index))
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if (nla_put_u32(msg, RDMA_NLDEV_ATTR_DEV_INDEX, device->index))
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@ -12,6 +12,7 @@
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#include <linux/kref.h>
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#include <linux/kref.h>
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#include <linux/completion.h>
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#include <linux/completion.h>
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#include <linux/sched/task.h>
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#include <linux/sched/task.h>
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#include <uapi/rdma/rdma_netlink.h>
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/**
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/**
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* enum rdma_restrack_type - HW objects to track
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* enum rdma_restrack_type - HW objects to track
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@ -183,4 +184,14 @@ static inline void rdma_restrack_set_task(struct rdma_restrack_entry *res,
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res->task = task;
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res->task = task;
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}
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}
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/*
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* Helper functions for rdma drivers when filling out
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* nldev driver attributes.
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*/
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int rdma_nl_put_driver_u32(struct sk_buff *msg, const char *name, u32 value);
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int rdma_nl_put_driver_u32_hex(struct sk_buff *msg, const char *name,
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u32 value);
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int rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name, u64 value);
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int rdma_nl_put_driver_u64_hex(struct sk_buff *msg, const char *name,
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u64 value);
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#endif /* _RDMA_RESTRACK_H_ */
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#endif /* _RDMA_RESTRACK_H_ */
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