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| author |   Mark Zhang <markz@mellanox.com> | 2019-07-02 13:02:35 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-07-05 10:22:54 -0300 |
| commit | 99fa331dc8629be55ac7a0cca0dc56492070ddac (patch) | |
| tree | ab4e61964fb24e80fd79ed148fb211d0d91c4c41 /include | |
| parent | RDMA/counter: Add set/clear per-port auto mode support (diff) | |
| download | linux-dev-99fa331dc8629be55ac7a0cca0dc56492070ddac.tar.xz linux-dev-99fa331dc8629be55ac7a0cca0dc56492070ddac.zip | |
RDMA/counter: Add "auto" configuration mode support
In auto mode all QPs belong to one category are bind automatically to a
single counter set. Currently only "qp type" is supported.
In this mode the qp counter is set in RST2INIT modification, and when a qp
is destroyed the counter is unbound.
Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to '')
| -rw-r--r-- | include/rdma/ib_verbs.h | 18 | ||||
| -rw-r--r-- | include/rdma/rdma_counter.h | 8 |
2 files changed, 26 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 3d19c056fbc0..0205472eb73a 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1698,6 +1698,9 @@ struct ib_qp { * Implementation details of the RDMA core, don't use in drivers: */ struct rdma_restrack_entry res; + + /* The counter the qp is bind to */ + struct rdma_counter *counter; }; struct ib_dm { @@ -2485,6 +2488,21 @@ struct ib_device_ops { u8 pdata_len); int (*iw_create_listen)(struct iw_cm_id *cm_id, int backlog); int (*iw_destroy_listen)(struct iw_cm_id *cm_id); + /** + * counter_bind_qp - Bind a QP to a counter. + * @counter - The counter to be bound. If counter->id is zero then + * the driver needs to allocate a new counter and set counter->id + */ + int (*counter_bind_qp)(struct rdma_counter *counter, struct ib_qp *qp); + /** + * counter_unbind_qp - Unbind the qp from the dynamically-allocated + * counter and bind it onto the default one + */ + int (*counter_unbind_qp)(struct ib_qp *qp); + /** + * counter_dealloc -De-allocate the hw counter + */ + int (*counter_dealloc)(struct rdma_counter *counter); DECLARE_RDMA_OBJ_SIZE(ib_ah); DECLARE_RDMA_OBJ_SIZE(ib_cq); diff --git a/include/rdma/rdma_counter.h b/include/rdma/rdma_counter.h index 8dd2619c015d..9f93a2403c9c 100644 --- a/include/rdma/rdma_counter.h +++ b/include/rdma/rdma_counter.h @@ -7,11 +7,14 @@ #define _RDMA_COUNTER_H_ #include <linux/mutex.h> +#include <linux/pid_namespace.h> #include <rdma/ib_verbs.h> #include <rdma/restrack.h> #include <rdma/rdma_netlink.h> +struct ib_qp; + struct auto_mode_param { int qp_type; }; @@ -31,6 +34,9 @@ struct rdma_counter { struct rdma_restrack_entry res; struct ib_device *device; uint32_t id; + struct kref kref; + struct rdma_counter_mode mode; + struct mutex lock; u8 port; }; @@ -38,5 +44,7 @@ void rdma_counter_init(struct ib_device *dev); void rdma_counter_release(struct ib_device *dev); int rdma_counter_set_auto_mode(struct ib_device *dev, u8 port, bool on, enum rdma_nl_counter_mask mask); +int rdma_counter_bind_qp_auto(struct ib_qp *qp, u8 port); +int rdma_counter_unbind_qp(struct ib_qp *qp, bool force); #endif /* _RDMA_COUNTER_H_ */ |