diff options
-rw-r--r-- | drivers/infiniband/core/cma.c | 35 | ||||
-rw-r--r-- | drivers/infiniband/core/ucma.c | 7 | ||||
-rw-r--r-- | include/rdma/rdma_cm.h | 10 | ||||
-rw-r--r-- | include/rdma/rdma_user_cm.h | 1 |
4 files changed, 49 insertions, 4 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 454e7ea..8734a6a 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -99,6 +99,10 @@ struct rdma_bind_list { unsigned short port; }; +enum { + CMA_OPTION_AFONLY, +}; + /* * Device removal can occur at anytime, so we need extra handling to * serialize notifying the user of device removal with other callbacks. @@ -137,6 +141,7 @@ struct rdma_id_private { u32 qkey; u32 qp_num; pid_t owner; + u32 options; u8 srq; u8 tos; u8 reuseaddr; @@ -2104,6 +2109,26 @@ int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse) } EXPORT_SYMBOL(rdma_set_reuseaddr); +int rdma_set_afonly(struct rdma_cm_id *id, int afonly) +{ + struct rdma_id_private *id_priv; + unsigned long flags; + int ret; + + id_priv = container_of(id, struct rdma_id_private, id); + spin_lock_irqsave(&id_priv->lock, flags); + if (id_priv->state == RDMA_CM_IDLE || id_priv->state == RDMA_CM_ADDR_BOUND) { + id_priv->options |= (1 << CMA_OPTION_AFONLY); + id_priv->afonly = afonly; + ret = 0; + } else { + ret = -EINVAL; + } + spin_unlock_irqrestore(&id_priv->lock, flags); + return ret; +} +EXPORT_SYMBOL(rdma_set_afonly); + static void cma_bind_port(struct rdma_bind_list *bind_list, struct rdma_id_private *id_priv) { @@ -2379,12 +2404,14 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr) } memcpy(&id->route.addr.src_addr, addr, ip_addr_size(addr)); - if (addr->sa_family == AF_INET) - id_priv->afonly = 1; + if (!(id_priv->options & (1 << CMA_OPTION_AFONLY))) { + if (addr->sa_family == AF_INET) + id_priv->afonly = 1; #if IS_ENABLED(CONFIG_IPV6) - else if (addr->sa_family == AF_INET6) - id_priv->afonly = init_net.ipv6.sysctl.bindv6only; + else if (addr->sa_family == AF_INET6) + id_priv->afonly = init_net.ipv6.sysctl.bindv6only; #endif + } ret = cma_get_port(id_priv); if (ret) goto err2; diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 8002ae6..893cb87 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -909,6 +909,13 @@ static int ucma_set_option_id(struct ucma_context *ctx, int optname, } ret = rdma_set_reuseaddr(ctx->cm_id, *((int *) optval) ? 1 : 0); break; + case RDMA_OPTION_ID_AFONLY: + if (optlen != sizeof(int)) { + ret = -EINVAL; + break; + } + ret = rdma_set_afonly(ctx->cm_id, *((int *) optval) ? 1 : 0); + break; default: ret = -ENOSYS; } diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h index 51988f8..ad3a314 100644 --- a/include/rdma/rdma_cm.h +++ b/include/rdma/rdma_cm.h @@ -357,4 +357,14 @@ void rdma_set_service_type(struct rdma_cm_id *id, int tos); */ int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse); +/** + * rdma_set_afonly - Specify that listens are restricted to the + * bound address family only. + * @id: Communication identifer to configure. + * @afonly: Value indicating if listens are restricted. + * + * Must be set before identifier is in the listening state. + */ +int rdma_set_afonly(struct rdma_cm_id *id, int afonly); + #endif /* RDMA_CM_H */ diff --git a/include/rdma/rdma_user_cm.h b/include/rdma/rdma_user_cm.h index 5348a00..1ee9239 100644 --- a/include/rdma/rdma_user_cm.h +++ b/include/rdma/rdma_user_cm.h @@ -224,6 +224,7 @@ enum { enum { RDMA_OPTION_ID_TOS = 0, RDMA_OPTION_ID_REUSEADDR = 1, + RDMA_OPTION_ID_AFONLY = 2, RDMA_OPTION_IB_PATH = 1 }; |