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Disable not-quite-ready userspace ABI for IB flow steering

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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband bugfix from Roland Dreier:
 "Disable not-quite-ready userspace ABI for IB flow steering"

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/core: Temporarily disable create_flow/destroy_flow uverbs
This commit is contained in:
Linus Torvalds 2013-10-23 07:51:25 +01:00
commit 0d645a8b82
6 changed files with 31 additions and 0 deletions
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11
drivers/infiniband/Kconfig
View file

@ -31,6 +31,17 @@ config INFINIBAND_USER_ACCESS
libibverbs, libibcm and a hardware driver library from
<http://www.openfabrics.org/git/>.
config INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
bool "Experimental and unstable ABI for userspace access to flow steering verbs"
depends on INFINIBAND_USER_ACCESS
depends on STAGING
---help---
The final ABI for userspace access to flow steering verbs
has not been defined. To use the current ABI, *WHICH WILL
CHANGE IN THE FUTURE*, say Y here.
If unsure, say N.
config INFINIBAND_USER_MEM
bool
depends on INFINIBAND_USER_ACCESS != n

2
drivers/infiniband/core/uverbs.h
View file

@ -217,7 +217,9 @@ IB_UVERBS_DECLARE_CMD(destroy_srq);
IB_UVERBS_DECLARE_CMD(create_xsrq);
IB_UVERBS_DECLARE_CMD(open_xrcd);
IB_UVERBS_DECLARE_CMD(close_xrcd);
#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
IB_UVERBS_DECLARE_CMD(create_flow);
IB_UVERBS_DECLARE_CMD(destroy_flow);
#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
#endif /* UVERBS_H */

4
drivers/infiniband/core/uverbs_cmd.c
View file

@ -54,7 +54,9 @@ static struct uverbs_lock_class qp_lock_class = { .name = "QP-uobj" };
static struct uverbs_lock_class ah_lock_class = { .name = "AH-uobj" };
static struct uverbs_lock_class srq_lock_class = { .name = "SRQ-uobj" };
static struct uverbs_lock_class xrcd_lock_class = { .name = "XRCD-uobj" };
#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
static struct uverbs_lock_class rule_lock_class = { .name = "RULE-uobj" };
#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
#define INIT_UDATA(udata, ibuf, obuf, ilen, olen) \
do { \
@ -2599,6 +2601,7 @@ out_put:
return ret ? ret : in_len;
}
#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
static int kern_spec_to_ib_spec(struct ib_kern_spec *kern_spec,
union ib_flow_spec *ib_spec)
{
@ -2824,6 +2827,7 @@ ssize_t ib_uverbs_destroy_flow(struct ib_uverbs_file *file,
return ret ? ret : in_len;
}
#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
struct ib_uverbs_create_xsrq *cmd,

6
drivers/infiniband/core/uverbs_main.c
View file

@ -115,8 +115,10 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file,
[IB_USER_VERBS_CMD_CLOSE_XRCD] = ib_uverbs_close_xrcd,
[IB_USER_VERBS_CMD_CREATE_XSRQ] = ib_uverbs_create_xsrq,
[IB_USER_VERBS_CMD_OPEN_QP] = ib_uverbs_open_qp,
#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
[IB_USER_VERBS_CMD_CREATE_FLOW] = ib_uverbs_create_flow,
[IB_USER_VERBS_CMD_DESTROY_FLOW] = ib_uverbs_destroy_flow
#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
};
static void ib_uverbs_add_one(struct ib_device *device);
@ -605,6 +607,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << hdr.command)))
return -ENOSYS;
#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
if (hdr.command >= IB_USER_VERBS_CMD_THRESHOLD) {
struct ib_uverbs_cmd_hdr_ex hdr_ex;
@ -621,6 +624,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
(hdr_ex.out_words +
hdr_ex.provider_out_words) * 4);
} else {
#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
if (hdr.in_words * 4 != count)
return -EINVAL;
@ -628,7 +632,9 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
buf + sizeof(hdr),
hdr.in_words * 4,
hdr.out_words * 4);
#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
}
#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
}
static int ib_uverbs_mmap(struct file *filp, struct vm_area_struct *vma)

2
drivers/infiniband/hw/mlx4/main.c
View file

@ -1691,9 +1691,11 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
ibdev->ib_dev.create_flow = mlx4_ib_create_flow;
ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow;
#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
ibdev->ib_dev.uverbs_cmd_mask |=
(1ull << IB_USER_VERBS_CMD_CREATE_FLOW) |
(1ull << IB_USER_VERBS_CMD_DESTROY_FLOW);
#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
}
mlx4_ib_alloc_eqs(dev, ibdev);

6
include/uapi/rdma/ib_user_verbs.h
View file

@ -87,8 +87,10 @@ enum {
IB_USER_VERBS_CMD_CLOSE_XRCD,
IB_USER_VERBS_CMD_CREATE_XSRQ,
IB_USER_VERBS_CMD_OPEN_QP,
#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
IB_USER_VERBS_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD,
IB_USER_VERBS_CMD_DESTROY_FLOW
#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
};
/*
@ -126,6 +128,7 @@ struct ib_uverbs_cmd_hdr {
__u16 out_words;
};
#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
struct ib_uverbs_cmd_hdr_ex {
__u32 command;
__u16 in_words;
@ -134,6 +137,7 @@ struct ib_uverbs_cmd_hdr_ex {
__u16 provider_out_words;
__u32 cmd_hdr_reserved;
};
#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
struct ib_uverbs_get_context {
__u64 response;
@ -696,6 +700,7 @@ struct ib_uverbs_detach_mcast {
__u64 driver_data[0];
};
#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
struct ib_kern_eth_filter {
__u8 dst_mac[6];
__u8 src_mac[6];
@ -780,6 +785,7 @@ struct ib_uverbs_destroy_flow {
__u32 comp_mask;
__u32 flow_handle;
};
#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
struct ib_uverbs_create_srq {
__u64 response;