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RDMA/nldev: Return SRQ information 

Extend the RDMA nldev return a SRQ information, like SRQ number, SRQ type,
PD number, CQ number and process ID that created that SRQ.

Sample output:

$ rdma res show srq
dev ibp8s0f0 srqn 0 type BASIC pdn 3 comm [ib_ipoib]
dev ibp8s0f0 srqn 4 type BASIC pdn 9 pid 3581 comm ibv_srq_pingpon
dev ibp8s0f0 srqn 5 type BASIC pdn 10 pid 3584 comm ibv_srq_pingpon
dev ibp8s0f0 srqn 6 type BASIC pdn 11 pid 3590 comm ibv_srq_pingpon
dev ibp8s0f1 srqn 0 type BASIC pdn 3 comm [ib_ipoib]
dev ibp8s0f1 srqn 1 type BASIC pdn 4 pid 3586 comm ibv_srq_pingpon

Link: https://lore.kernel.org/r/322f9210b95812799190dd4a0fb92f3a3bba0333.1618753110.git.leonro@nvidia.com
Signed-off-by: Neta Ostrovsky <netao@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Neta Ostrovsky 2021-04-18 16:41:25 +03:00 committed by Jason Gunthorpe
parent 48f8a70e89
commit 391c6bd5ac
2 changed files with 48 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
drivers/infiniband/core/nldev.c
View File

@ -132,6 +132,9 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
[RDMA_NLDEV_ATTR_RES_TYPE] = { .type = NLA_U8 },
[RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY]= { .type = NLA_U32 },
[RDMA_NLDEV_ATTR_RES_USECNT] = { .type = NLA_U64 },
[RDMA_NLDEV_ATTR_RES_SRQ] = { .type = NLA_NESTED },
[RDMA_NLDEV_ATTR_RES_SRQN] = { .type = NLA_U32 },
[RDMA_NLDEV_ATTR_RES_SRQ_ENTRY] = { .type = NLA_NESTED },
[RDMA_NLDEV_ATTR_SM_LID] = { .type = NLA_U32 },
[RDMA_NLDEV_ATTR_SUBNET_PREFIX] = { .type = NLA_U64 },
[RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK] = { .type = NLA_U32 },
@ -387,6 +390,7 @@ static int fill_res_info(struct sk_buff *msg, struct ib_device *device)
[RDMA_RESTRACK_CM_ID] = "cm_id",
[RDMA_RESTRACK_MR] = "mr",
[RDMA_RESTRACK_CTX] = "ctx",
[RDMA_RESTRACK_SRQ] = "srq",
};
struct nlattr *table_attr;
@ -719,6 +723,32 @@ static int fill_res_ctx_entry(struct sk_buff *msg, bool has_cap_net_admin,
return fill_res_name_pid(msg, res);
}
static int fill_res_srq_entry(struct sk_buff *msg, bool has_cap_net_admin,
struct rdma_restrack_entry *res, uint32_t port)
{
struct ib_srq *srq = container_of(res, struct ib_srq, res);
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_SRQN, srq->res.id))
goto err;
if (nla_put_u8(msg, RDMA_NLDEV_ATTR_RES_TYPE, srq->srq_type))
goto err;
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_PDN, srq->pd->res.id))
goto err;
if (ib_srq_has_cq(srq->srq_type)) {
if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_CQN,
srq->ext.cq->res.id))
goto err;
}
return fill_res_name_pid(msg, res);
err:
return -EMSGSIZE;
}
static int fill_stat_counter_mode(struct sk_buff *msg,
struct rdma_counter *counter)
{
@ -1258,6 +1288,13 @@ static const struct nldev_fill_res_entry fill_entries[RDMA_RESTRACK_MAX] = {
.entry = RDMA_NLDEV_ATTR_RES_CTX_ENTRY,
.id = RDMA_NLDEV_ATTR_RES_CTXN,
},
[RDMA_RESTRACK_SRQ] = {
.nldev_attr = RDMA_NLDEV_ATTR_RES_SRQ,
.flags = NLDEV_PER_DEV,
.entry = RDMA_NLDEV_ATTR_RES_SRQ_ENTRY,
.id = RDMA_NLDEV_ATTR_RES_SRQN,
},
};
static int res_get_common_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
@ -1499,6 +1536,7 @@ RES_GET_FUNCS(mr, RDMA_RESTRACK_MR);
RES_GET_FUNCS(mr_raw, RDMA_RESTRACK_MR);
RES_GET_FUNCS(counter, RDMA_RESTRACK_COUNTER);
RES_GET_FUNCS(ctx, RDMA_RESTRACK_CTX);
RES_GET_FUNCS(srq, RDMA_RESTRACK_SRQ);
static LIST_HEAD(link_ops);
static DECLARE_RWSEM(link_ops_rwsem);
@ -2166,6 +2204,10 @@ static const struct rdma_nl_cbs nldev_cb_table[RDMA_NLDEV_NUM_OPS] = {
.doit = nldev_res_get_ctx_doit,
.dump = nldev_res_get_ctx_dumpit,
},
[RDMA_NLDEV_CMD_RES_SRQ_GET] = {
.doit = nldev_res_get_srq_doit,
.dump = nldev_res_get_srq_dumpit,
},
[RDMA_NLDEV_CMD_SYS_GET] = {
.doit = nldev_sys_get_doit,
},

6
include/uapi/rdma/rdma_netlink.h
View File

@ -295,6 +295,8 @@ enum rdma_nldev_command {
RDMA_NLDEV_CMD_RES_CTX_GET, /* can dump */
RDMA_NLDEV_CMD_RES_SRQ_GET, /* can dump */
RDMA_NLDEV_NUM_OPS
};
@ -538,6 +540,10 @@ enum rdma_nldev_attr {
RDMA_NLDEV_ATTR_RES_CTX, /* nested table */
RDMA_NLDEV_ATTR_RES_CTX_ENTRY, /* nested table */
RDMA_NLDEV_ATTR_RES_SRQ, /* nested table */
RDMA_NLDEV_ATTR_RES_SRQ_ENTRY, /* nested table */
RDMA_NLDEV_ATTR_RES_SRQN, /* u32 */
/*
* Always the end
*/