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Code Issues Releases Wiki Activity

RDMA/restrack: Add support to get resource tracking for SRQ

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In order to track SRQ resources, a new restrack object is initialized and
added to the resource tracking database.

Link: https://lore.kernel.org/r/0db71c409f24f2f6b019bf8797a8fed96fe7079c.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 16:41:24 +03:00 committed by Jason Gunthorpe
parent 12ce208f40
commit 48f8a70e89
4 changed files with 19 additions and 0 deletions
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3
drivers/infiniband/core/restrack.c
View file

@ -47,6 +47,7 @@ static const char *type2str(enum rdma_restrack_type type)
[RDMA_RESTRACK_MR] = "MR",
[RDMA_RESTRACK_CTX] = "CTX",
[RDMA_RESTRACK_COUNTER] = "COUNTER",
[RDMA_RESTRACK_SRQ] = "SRQ",
};
return names[type];
@ -141,6 +142,8 @@ static struct ib_device *res_to_dev(struct rdma_restrack_entry *res)
return container_of(res, struct ib_ucontext, res)->device;
case RDMA_RESTRACK_COUNTER:
return container_of(res, struct rdma_counter, res)->device;
case RDMA_RESTRACK_SRQ:
return container_of(res, struct ib_srq, res)->device;
default:
WARN_ONCE(true, "Wrong resource tracking type %u\n", res->type);
return NULL;

7
drivers/infiniband/core/verbs.c
View file

@ -1039,8 +1039,12 @@ struct ib_srq *ib_create_srq_user(struct ib_pd *pd,
}
atomic_inc(&pd->usecnt);
rdma_restrack_new(&srq->res, RDMA_RESTRACK_SRQ);
rdma_restrack_parent_name(&srq->res, &pd->res);
ret = pd->device->ops.create_srq(srq, srq_init_attr, udata);
if (ret) {
rdma_restrack_put(&srq->res);
atomic_dec(&srq->pd->usecnt);
if (srq->srq_type == IB_SRQT_XRC)
atomic_dec(&srq->ext.xrc.xrcd->usecnt);
@ -1050,6 +1054,8 @@ struct ib_srq *ib_create_srq_user(struct ib_pd *pd,
return ERR_PTR(ret);
}
rdma_restrack_add(&srq->res);
return srq;
}
EXPORT_SYMBOL(ib_create_srq_user);
@ -1088,6 +1094,7 @@ int ib_destroy_srq_user(struct ib_srq *srq, struct ib_udata *udata)
atomic_dec(&srq->ext.xrc.xrcd->usecnt);
if (ib_srq_has_cq(srq->srq_type))
atomic_dec(&srq->ext.cq->usecnt);
rdma_restrack_del(&srq->res);
kfree(srq);
return ret;

5
include/rdma/ib_verbs.h
View file

@ -1610,6 +1610,11 @@ struct ib_srq {
} xrc;
};
} ext;
/*
* Implementation details of the RDMA core, don't use in drivers:
*/
struct rdma_restrack_entry res;
};
enum ib_raw_packet_caps {

4
include/rdma/restrack.h
View file

@ -49,6 +49,10 @@ enum rdma_restrack_type {
* @RDMA_RESTRACK_COUNTER: Statistic Counter
*/
RDMA_RESTRACK_COUNTER,
/**
* @RDMA_RESTRACK_SRQ: Shared receive queue (SRQ)
*/
RDMA_RESTRACK_SRQ,
/**
* @RDMA_RESTRACK_MAX: Last entry, used for array dclarations
*/