RDMA/ucma: Extend ucma_connect to receive ECE parameters
Active side of CMID initiates connection through librdmacm's rdma_connect() and kernel's ucma_connect(). Extend UCMA interface to handle those new parameters. Link: https://lore.kernel.org/r/20200526103304.196371-3-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Родитель
fef17f91da
Коммит
34e2ab57a9
|
@ -4036,6 +4036,27 @@ err:
|
|||
}
|
||||
EXPORT_SYMBOL(rdma_connect);
|
||||
|
||||
/**
|
||||
* rdma_connect_ece - Initiate an active connection request with ECE data.
|
||||
* @id: Connection identifier to connect.
|
||||
* @conn_param: Connection information used for connected QPs.
|
||||
* @ece: ECE parameters
|
||||
*
|
||||
* See rdma_connect() explanation.
|
||||
*/
|
||||
int rdma_connect_ece(struct rdma_cm_id *id, struct rdma_conn_param *conn_param,
|
||||
struct rdma_ucm_ece *ece)
|
||||
{
|
||||
struct rdma_id_private *id_priv =
|
||||
container_of(id, struct rdma_id_private, id);
|
||||
|
||||
id_priv->ece.vendor_id = ece->vendor_id;
|
||||
id_priv->ece.attr_mod = ece->attr_mod;
|
||||
|
||||
return rdma_connect(id, conn_param);
|
||||
}
|
||||
EXPORT_SYMBOL(rdma_connect_ece);
|
||||
|
||||
static int cma_accept_ib(struct rdma_id_private *id_priv,
|
||||
struct rdma_conn_param *conn_param)
|
||||
{
|
||||
|
|
|
@ -95,6 +95,7 @@ struct rdma_id_private {
|
|||
* Internal to RDMA/core, don't use in the drivers
|
||||
*/
|
||||
struct rdma_restrack_entry res;
|
||||
struct rdma_ucm_ece ece;
|
||||
};
|
||||
|
||||
#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS)
|
||||
|
|
|
@ -1072,12 +1072,15 @@ static void ucma_copy_conn_param(struct rdma_cm_id *id,
|
|||
static ssize_t ucma_connect(struct ucma_file *file, const char __user *inbuf,
|
||||
int in_len, int out_len)
|
||||
{
|
||||
struct rdma_ucm_connect cmd;
|
||||
struct rdma_conn_param conn_param;
|
||||
struct rdma_ucm_ece ece = {};
|
||||
struct rdma_ucm_connect cmd;
|
||||
struct ucma_context *ctx;
|
||||
size_t in_size;
|
||||
int ret;
|
||||
|
||||
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
|
||||
in_size = min_t(size_t, in_len, sizeof(cmd));
|
||||
if (copy_from_user(&cmd, inbuf, in_size))
|
||||
return -EFAULT;
|
||||
|
||||
if (!cmd.conn_param.valid)
|
||||
|
@ -1088,8 +1091,13 @@ static ssize_t ucma_connect(struct ucma_file *file, const char __user *inbuf,
|
|||
return PTR_ERR(ctx);
|
||||
|
||||
ucma_copy_conn_param(ctx->cm_id, &conn_param, &cmd.conn_param);
|
||||
if (offsetofend(typeof(cmd), ece) <= in_size) {
|
||||
ece.vendor_id = cmd.ece.vendor_id;
|
||||
ece.attr_mod = cmd.ece.attr_mod;
|
||||
}
|
||||
|
||||
mutex_lock(&ctx->mutex);
|
||||
ret = rdma_connect(ctx->cm_id, &conn_param);
|
||||
ret = rdma_connect_ece(ctx->cm_id, &conn_param, &ece);
|
||||
mutex_unlock(&ctx->mutex);
|
||||
ucma_put_ctx(ctx);
|
||||
return ret;
|
||||
|
|
|
@ -264,6 +264,9 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
|
|||
*/
|
||||
int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param);
|
||||
|
||||
int rdma_connect_ece(struct rdma_cm_id *id, struct rdma_conn_param *conn_param,
|
||||
struct rdma_ucm_ece *ece);
|
||||
|
||||
/**
|
||||
* rdma_listen - This function is called by the passive side to
|
||||
* listen for incoming connection requests.
|
||||
|
|
|
@ -210,10 +210,16 @@ struct rdma_ucm_ud_param {
|
|||
__u8 reserved[7];
|
||||
};
|
||||
|
||||
struct rdma_ucm_ece {
|
||||
__u32 vendor_id;
|
||||
__u32 attr_mod;
|
||||
};
|
||||
|
||||
struct rdma_ucm_connect {
|
||||
struct rdma_ucm_conn_param conn_param;
|
||||
__u32 id;
|
||||
__u32 reserved;
|
||||
struct rdma_ucm_ece ece;
|
||||
};
|
||||
|
||||
struct rdma_ucm_listen {
|
||||
|
|
Загрузка…
Ссылка в новой задаче