ibv_query_port - query an RDMA port's attributes
#include <infiniband/verbs.h> int ibv_query_port(struct ibv_context *context, uint8_t port_num, struct ibv_port_attr *port_attr);
Libibverbs Programmer's Manual IBV_QUERY_PORT(3)
NAME
ibv_query_port - query an RDMA port's attributes
SYNOPSIS
#include <infiniband/verbs.h>
int ibv_query_port(struct ibv_context *context, uint8_t port_num,
struct ibv_port_attr *port_attr);
DESCRIPTION
ibv_query_port() returns the attributes of port port_num for device
context context through the pointer port_attr. The argument port_attr
is an ibv_port_attr struct, as defined in <infiniband/verbs.h>.
struct ibv_port_attr {
enum ibv_port_state state; /* Logical port state */
enum ibv_mtu max_mtu; /* Max MTU supported by port */
enum ibv_mtu active_mtu; /* Actual MTU */
int gid_tbl_len; /* Length of source GID table */
uint32_t port_cap_flags; /* Port capabilities */
uint32_t max_msg_sz; /* Maximum message size */
uint32_t bad_pkey_cntr; /* Bad P_Key counter */
uint32_t qkey_viol_cntr; /* Q_Key violation counter */
uint16_t pkey_tbl_len; /* Length of partition table */
uint16_t lid; /* Base port LID */
uint16_t sm_lid; /* SM LID */
uint8_t lmc; /* LMC of LID */
uint8_t max_vl_num; /* Maximum number of VLs */
uint8_t sm_sl; /* SM service level */
uint8_t subnet_timeout; /* Subnet propagation delay */
uint8_t init_type_reply;/* Type of initialization performed by SM */
uint8_t active_width; /* Currently active link width */
uint8_t active_speed; /* Currently active link speed */
uint8_t phys_state; /* Physical port state */
uint8_t link_layer; /* link layer protocol of the port */
};
possible values for the link layer field are IBV_LINK_LAYER_INFINIBAND,
IBV_LINK_LAYER_ETHERNET, or IBV_LINK_LAYER_UNSPECIFIED.
RETURN VALUE
ibv_query_port() returns 0 on success, or the value of errno on failure
(which indicates the failure reason).
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+-----------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------------+
|Availability | network/open-fabrics |
+---------------+-----------------------+
|Stability | Pass-through volatile |
+---------------+-----------------------+
SEE ALSO
ibv_create_qp(3), ibv_destroy_qp(3), ibv_query_qp(3), ibv_create_ah(3)
AUTHORS
Dotan Barak <dotanba@gmail.com>
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from ['https://www.openfabrics.org/down-
loads/ibutils/ibutils-1.5.7-0.2.gbd7e502.tar.gz', 'https://www.openfab-
rics.org/downloads/libibverbs/libibverbs-1.1.8.tar.gz',
'https://www.openfabrics.org/downloads/libmlx4/libmlx4-1.0.6.tar.gz',
'https://www.openfabrics.org/downloads/libsdp/lib-
sdp-1.1.108-0.15.gd7fdb72.tar.gz', 'https://www.openfabrics.org/down-
loads/management/infiniband-diags-1.6.5.tar.gz', 'https://www.openfab-
rics.org/downloads/management/libibmad-1.3.12.tar.gz',
'https://www.openfabrics.org/downloads/management/libibu-
mad-1.3.10.2.tar.gz', 'https://www.openfabrics.org/downloads/manage-
ment/opensm-3.3.19.tar.gz', 'https://www.openfabrics.org/down-
loads/perftest/perftest-1.3.0-0.42.gf350d3d.tar.gz', 'https://www.open-
fabrics.org/downloads/qperf/qperf-0.4.9.tar.gz', 'https://www.openfab-
rics.org/downloads/rdmacm/librdmacm-1.0.21.tar.gz', 'https://www.open-
fabrics.org/downloads/rds-tools/rds-tools-2.0.4.tar.gz'].
Further information about this software can be found on the open source
community website at http://www.openfabrics.org/.
libibverbs 2006-10-31 IBV_QUERY_PORT(3)