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| author |   Yamin Friedman <yaminf@mellanox.com> | 2019-07-08 13:59:04 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-07-08 16:37:22 -0300 |
| commit | f8fc8cd9c612c31f92b19b72f619fa043ec76e5e (patch) | |
| tree | c622da5ace9dda0f1ac72467888d9b2f759cfbaa /drivers/infiniband/core | |
| parent | RDMA/core: Provide RDMA DIM support for ULPs (diff) | |
| download | linux-dev-f8fc8cd9c612c31f92b19b72f619fa043ec76e5e.tar.xz linux-dev-f8fc8cd9c612c31f92b19b72f619fa043ec76e5e.zip | |
RDMA/nldev: Added configuration of RDMA dynamic interrupt moderation to netlink
Added parameter in ib_device for enabling dynamic interrupt moderation so
that it can be configured in userspace using rdma tool.
In order to set adaptive-moderation for an ib device the command is:
rdma dev set [DEV] adaptive-moderation [on|off]
Please set on/off.
rdma dev show
0: mlx5_0: node_type ca fw 16.26.0055 node_guid 248a:0703:00a5:29d0
sys_image_guid 248a:0703:00a5:29d0 adaptive-moderation on
rdma resource show cq
dev mlx5_0 cqn 0 cqe 1023 users 4 poll-ctx UNBOUND_WORKQUEUE
adaptive-moderation off comm [ib_core]
Signed-off-by: Yamin Friedman <yaminf@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/core/core_priv.h | 1 | ||||
| -rw-r--r-- | drivers/infiniband/core/device.c | 9 | ||||
| -rw-r--r-- | drivers/infiniband/core/nldev.c | 14 |
3 files changed, 24 insertions, 0 deletions
diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h index a953c2fa2e78..888d89ce81df 100644 --- a/drivers/infiniband/core/core_priv.h +++ b/drivers/infiniband/core/core_priv.h @@ -60,6 +60,7 @@ extern bool ib_devices_shared_netns; int ib_device_register_sysfs(struct ib_device *device); void ib_device_unregister_sysfs(struct ib_device *device); int ib_device_rename(struct ib_device *ibdev, const char *name); +int ib_device_set_dim(struct ib_device *ibdev, u8 use_dim); typedef void (*roce_netdev_callback)(struct ib_device *device, u8 port, struct net_device *idev, void *cookie); diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index bdf61499e6d5..7f4affe8a10d 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -448,6 +448,15 @@ int ib_device_rename(struct ib_device *ibdev, const char *name) return 0; } +int ib_device_set_dim(struct ib_device *ibdev, u8 use_dim) +{ + if (use_dim > 1) + return -EINVAL; + ibdev->use_cq_dim = use_dim; + + return 0; +} + static int alloc_name(struct ib_device *ibdev, const char *name) { struct ib_device *device; diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index a4431ed566b6..d9f2a30e6467 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -52,6 +52,7 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = { .len = RDMA_NLDEV_ATTR_EMPTY_STRING }, [RDMA_NLDEV_ATTR_CHARDEV_TYPE] = { .type = NLA_NUL_STRING, .len = RDMA_NLDEV_ATTR_CHARDEV_TYPE_SIZE }, + [RDMA_NLDEV_ATTR_DEV_DIM] = { .type = NLA_U8 }, [RDMA_NLDEV_ATTR_DEV_INDEX] = { .type = NLA_U32 }, [RDMA_NLDEV_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING, .len = IB_DEVICE_NAME_MAX }, @@ -252,6 +253,8 @@ static int fill_dev_info(struct sk_buff *msg, struct ib_device *device) return -EMSGSIZE; if (nla_put_u8(msg, RDMA_NLDEV_ATTR_DEV_NODE_TYPE, device->node_type)) return -EMSGSIZE; + if (nla_put_u8(msg, RDMA_NLDEV_ATTR_DEV_DIM, device->use_cq_dim)) + return -EMSGSIZE; /* * Link type is determined on first port and mlx4 device @@ -552,6 +555,9 @@ static int fill_res_cq_entry(struct sk_buff *msg, bool has_cap_net_admin, nla_put_u8(msg, RDMA_NLDEV_ATTR_RES_POLL_CTX, cq->poll_ctx)) goto err; + if (nla_put_u8(msg, RDMA_NLDEV_ATTR_DEV_DIM, (cq->dim != NULL))) + goto err; + if (nla_put_u32(msg, RDMA_NLDEV_ATTR_RES_CQN, res->id)) goto err; if (!rdma_is_kernel_res(res) && @@ -870,6 +876,14 @@ static int nldev_set_doit(struct sk_buff *skb, struct nlmsghdr *nlh, goto put_done; } + if (tb[RDMA_NLDEV_ATTR_DEV_DIM]) { + u8 use_dim; + + use_dim = nla_get_u8(tb[RDMA_NLDEV_ATTR_DEV_DIM]); + err = ib_device_set_dim(device, use_dim); + goto done; + } + done: ib_device_put(device); put_done: |