diff options
Diffstat (limited to 'drivers/infiniband/ulp')
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 2 | ||||
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_netlink.c | 11 | ||||
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_vlan.c | 2 | ||||
-rw-r--r-- | drivers/infiniband/ulp/rtrs/rtrs-srv.c | 76 | ||||
-rw-r--r-- | drivers/infiniband/ulp/rtrs/rtrs-srv.h | 7 |
5 files changed, 95 insertions, 3 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index ef60e8e4ae67..7c0bb2642d23 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -2470,6 +2470,8 @@ static struct net_device *ipoib_add_port(const char *format, /* call event handler to ensure pkey in sync */ queue_work(ipoib_workqueue, &priv->flush_heavy); + ndev->rtnl_link_ops = ipoib_get_link_ops(); + result = register_netdev(ndev); if (result) { pr_warn("%s: couldn't register ipoib port %d; error %d\n", diff --git a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c index 38c984d16996..d5a90a66b45c 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c @@ -144,6 +144,16 @@ static int ipoib_new_child_link(struct net *src_net, struct net_device *dev, return 0; } +static void ipoib_del_child_link(struct net_device *dev, struct list_head *head) +{ + struct ipoib_dev_priv *priv = ipoib_priv(dev); + + if (!priv->parent) + return; + + unregister_netdevice_queue(dev, head); +} + static size_t ipoib_get_size(const struct net_device *dev) { return nla_total_size(2) + /* IFLA_IPOIB_PKEY */ @@ -158,6 +168,7 @@ static struct rtnl_link_ops ipoib_link_ops __read_mostly = { .priv_size = sizeof(struct ipoib_dev_priv), .setup = ipoib_setup_common, .newlink = ipoib_new_child_link, + .dellink = ipoib_del_child_link, .changelink = ipoib_changelink, .get_size = ipoib_get_size, .fill_info = ipoib_fill_info, diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c index 30865605e098..4c50a87ed7cc 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c @@ -195,6 +195,8 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) } priv = ipoib_priv(ndev); + ndev->rtnl_link_ops = ipoib_get_link_ops(); + result = __ipoib_vlan_add(ppriv, priv, pkey, IPOIB_LEGACY_CHILD); if (result && ndev->reg_state == NETREG_UNINITIALIZED) diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c index 28f6414dfa3d..d6f93601712e 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c +++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c @@ -16,6 +16,7 @@ #include "rtrs-srv.h" #include "rtrs-log.h" #include <rdma/ib_cm.h> +#include <rdma/ib_verbs.h> MODULE_DESCRIPTION("RDMA Transport Server"); MODULE_LICENSE("GPL"); @@ -31,6 +32,7 @@ MODULE_LICENSE("GPL"); static struct rtrs_rdma_dev_pd dev_pd; static mempool_t *chunk_pool; struct class *rtrs_dev_class; +static struct rtrs_srv_ib_ctx ib_ctx; static int __read_mostly max_chunk_size = DEFAULT_MAX_CHUNK_SIZE; static int __read_mostly sess_queue_depth = DEFAULT_SESS_QUEUE_DEPTH; @@ -2042,6 +2044,70 @@ static void free_srv_ctx(struct rtrs_srv_ctx *ctx) kfree(ctx); } +static int rtrs_srv_add_one(struct ib_device *device) +{ + struct rtrs_srv_ctx *ctx; + int ret = 0; + + mutex_lock(&ib_ctx.ib_dev_mutex); + if (ib_ctx.ib_dev_count) + goto out; + + /* + * Since our CM IDs are NOT bound to any ib device we will create them + * only once + */ + ctx = ib_ctx.srv_ctx; + ret = rtrs_srv_rdma_init(ctx, ib_ctx.port); + if (ret) { + /* + * We errored out here. + * According to the ib code, if we encounter an error here then the + * error code is ignored, and no more calls to our ops are made. + */ + pr_err("Failed to initialize RDMA connection"); + goto err_out; + } + +out: + /* + * Keep a track on the number of ib devices added + */ + ib_ctx.ib_dev_count++; + +err_out: + mutex_unlock(&ib_ctx.ib_dev_mutex); + return ret; +} + +static void rtrs_srv_remove_one(struct ib_device *device, void *client_data) +{ + struct rtrs_srv_ctx *ctx; + + mutex_lock(&ib_ctx.ib_dev_mutex); + ib_ctx.ib_dev_count--; + + if (ib_ctx.ib_dev_count) + goto out; + + /* + * Since our CM IDs are NOT bound to any ib device we will remove them + * only once, when the last device is removed + */ + ctx = ib_ctx.srv_ctx; + rdma_destroy_id(ctx->cm_id_ip); + rdma_destroy_id(ctx->cm_id_ib); + +out: + mutex_unlock(&ib_ctx.ib_dev_mutex); +} + +static struct ib_client rtrs_srv_client = { + .name = "rtrs_server", + .add = rtrs_srv_add_one, + .remove = rtrs_srv_remove_one +}; + /** * rtrs_srv_open() - open RTRS server context * @ops: callback functions @@ -2060,7 +2126,11 @@ struct rtrs_srv_ctx *rtrs_srv_open(struct rtrs_srv_ops *ops, u16 port) if (!ctx) return ERR_PTR(-ENOMEM); - err = rtrs_srv_rdma_init(ctx, port); + mutex_init(&ib_ctx.ib_dev_mutex); + ib_ctx.srv_ctx = ctx; + ib_ctx.port = port; + + err = ib_register_client(&rtrs_srv_client); if (err) { free_srv_ctx(ctx); return ERR_PTR(err); @@ -2099,8 +2169,8 @@ static void close_ctx(struct rtrs_srv_ctx *ctx) */ void rtrs_srv_close(struct rtrs_srv_ctx *ctx) { - rdma_destroy_id(ctx->cm_id_ip); - rdma_destroy_id(ctx->cm_id_ib); + ib_unregister_client(&rtrs_srv_client); + mutex_destroy(&ib_ctx.ib_dev_mutex); close_ctx(ctx); free_srv_ctx(ctx); } diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.h b/drivers/infiniband/ulp/rtrs/rtrs-srv.h index dc95b0932f0d..08b0b8a6eebe 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-srv.h +++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.h @@ -118,6 +118,13 @@ struct rtrs_srv_ctx { struct list_head srv_list; }; +struct rtrs_srv_ib_ctx { + struct rtrs_srv_ctx *srv_ctx; + u16 port; + struct mutex ib_dev_mutex; + int ib_dev_count; +}; + extern struct class *rtrs_dev_class; void close_sess(struct rtrs_srv_sess *sess); 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