diff options
| author | Steve Wise <swise@opengridcomputing.com> | 2018-03-02 00:58:28 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2018-03-08 23:03:03 +0300 |
| commit | 29cf1351d450f95957eb0ef2e8cc0c7765fc5785 (patch) | |
| tree | 8225e16f7fb534423069a40b902914bd24106936 /drivers/infiniband/core/nldev.c | |
| parent | 5292443431fff5ba20f1b48985d382dd824016eb (diff) | |
| download | linux-29cf1351d450f95957eb0ef2e8cc0c7765fc5785.tar.xz | |
RDMA/nldev: provide detailed PD information
Implement the RDMA nldev netlink interface for dumping detailed PD
information.
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/core/nldev.c')
| -rw-r--r-- | drivers/infiniband/core/nldev.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 4c6626ecdb99..192084c78352 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -91,6 +91,10 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = { [RDMA_NLDEV_ATTR_RES_LKEY] = { .type = NLA_U32 }, [RDMA_NLDEV_ATTR_RES_IOVA] = { .type = NLA_U64 }, [RDMA_NLDEV_ATTR_RES_MRLEN] = { .type = NLA_U64 }, + [RDMA_NLDEV_ATTR_RES_PD] = { .type = NLA_NESTED }, + [RDMA_NLDEV_ATTR_RES_PD_ENTRY] = { .type = NLA_NESTED }, + [RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY] = { .type = NLA_U32 }, + [RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY] = { .type = NLA_U32 }, }; static int fill_nldev_handle(struct sk_buff *msg, struct ib_device *device) @@ -439,6 +443,45 @@ out: return -EMSGSIZE; } +static int fill_res_pd_entry(struct sk_buff *msg, struct netlink_callback *cb, + struct rdma_restrack_entry *res, uint32_t port) +{ + struct ib_pd *pd = container_of(res, struct ib_pd, res); + struct nlattr *entry_attr; + + entry_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_RES_PD_ENTRY); + if (!entry_attr) + goto out; + + if (netlink_capable(cb->skb, CAP_NET_ADMIN)) { + if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY, + pd->local_dma_lkey)) + goto err; + if ((pd->flags & IB_PD_UNSAFE_GLOBAL_RKEY) && + nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY, + pd->unsafe_global_rkey)) + goto err; + } + if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_RES_USECNT, + atomic_read(&pd->usecnt), 0)) + goto err; + if ((pd->flags & IB_PD_UNSAFE_GLOBAL_RKEY) && + nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY, + pd->unsafe_global_rkey)) + goto err; + + if (fill_res_name_pid(msg, res)) + goto err; + + nla_nest_end(msg, entry_attr); + return 0; + +err: + nla_nest_cancel(msg, entry_attr); +out: + return -EMSGSIZE; +} + static int nldev_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, struct netlink_ext_ack *extack) { @@ -741,6 +784,11 @@ static const struct nldev_fill_res_entry fill_entries[RDMA_RESTRACK_MAX] = { .nldev_cmd = RDMA_NLDEV_CMD_RES_MR_GET, .nldev_attr = RDMA_NLDEV_ATTR_RES_MR, }, + [RDMA_RESTRACK_PD] = { + .fill_res_func = fill_res_pd_entry, + .nldev_cmd = RDMA_NLDEV_CMD_RES_PD_GET, + .nldev_attr = RDMA_NLDEV_ATTR_RES_PD, + }, }; static int res_get_common_dumpit(struct sk_buff *skb, @@ -901,6 +949,12 @@ static int nldev_res_get_mr_dumpit(struct sk_buff *skb, return res_get_common_dumpit(skb, cb, RDMA_RESTRACK_MR); } +static int nldev_res_get_pd_dumpit(struct sk_buff *skb, + struct netlink_callback *cb) +{ + return res_get_common_dumpit(skb, cb, RDMA_RESTRACK_PD); +} + static const struct rdma_nl_cbs nldev_cb_table[RDMA_NLDEV_NUM_OPS] = { [RDMA_NLDEV_CMD_GET] = { .doit = nldev_get_doit, @@ -936,6 +990,9 @@ static const struct rdma_nl_cbs nldev_cb_table[RDMA_NLDEV_NUM_OPS] = { [RDMA_NLDEV_CMD_RES_MR_GET] = { .dump = nldev_res_get_mr_dumpit, }, + [RDMA_NLDEV_CMD_RES_PD_GET] = { + .dump = nldev_res_get_pd_dumpit, + }, }; void __init nldev_init(void) |