[ofw] ib_peek_cq() function returns ib_unsupported

[rakesh thakur]

Hi All,

I am using one of the mellanox card and mellanox winIB software
WinIB_x86_1_4_0_2027.msi
While using the function ib_peek_cq() i get the IB_Unsupported error

To get the above api working shoule we have to get the new version of
software or we may have to change the mellanox card..

Also max_num_ent_cq = 0x1ffff        (Max num of supported entries per
CQ) whereas
max_qp_ous_wr = 0x4000          (Maximum Number of outstanding WR on any WQ)

as we can see that we have difference in outstanding entries in a WQ
and a CQ (do understand why is it so). is there any means to increase
the permissible values( number of entries) outstanding in WQ.?

Any suggestion or direction toward proper link (thread) would be helpful.

C:\Documents and Settings\thakurr>vstat -v

        hca_idx=0
        uplink={BUS=PCI_E, SPEED=2.5 Gbps, WIDTH=x1, CAPS=2.5*x8}
        vendor_id=0x02c9
        vendor_part_id=0x6274
        hw_ver=0xa0
        fw_ver=1.00.0800
        PSID=MT_03F0110001
        node_guid=0002:c902:0023:792c
        num_phys_ports = 1
        max_num_qp = 0xfc00             (Maximum Number of QPs supported)
        max_qp_ous_wr = 0x4000          (Maximum Number of outstanding
WR on any WQ)
        max_num_sg_ent = 0x1e           (Max num of scatter/gather
entries for WQE other than RD)
        max_num_sg_ent_rd = 0x0         (Max num of scatter/gather
entries for RD WQE)
        max_num_srq = 0x3c0             (Maximum Number of SRQs supported)
        max_wqe_per_srq = 0x3fff        (Maximum Number of outstanding
WR on any SRQ)
        max_srq_sentries = 0x1e         (Maximum Number of
scatter/gather entries for SRQ WQE)
        srq_resize_supported = 0        (SRQ resize supported)
        max_num_cq = 0xff80             (Max num of supported CQs)
        max_num_ent_cq = 0x1ffff        (Max num of supported entries per CQ)
        max_num_mr = 0x1fff0            (Maximum number of memory
region supported)
        max_mr_size = 0xffffffff        (Largest contiguous block of
memory region in bytes)
        max_pd_num = 0x7ffc             (Maximum number of protection
domains supported)
        page_size_cap = 0x1000          (Largest page size supported
by this HCA)
        local_ca_ack_delay = 0xf        (Log2 4.096usec Max. RX to ACK
or NAK delay)
        max_qp_ous_rd_atom = 0x4        (Maximum number of oust. RDMA
read/atomic as target)
        max_ee_ous_rd_atom = 0          (EE Maximum number of outs.
RDMA read/atomic as target)
        max_res_rd_atom = 0x0           (Max. Num. of resources used
for RDMA read/atomic as target)
        max_qp_init_rd_atom = 0x80      (Max. Num. of outs. RDMA
read/atomic as initiator)
        max_ee_init_rd_atom = 0         (EE Max. Num. of outs. RDMA
read/atomic as initiator)
        atomic_cap = LOCAL              (Level of Atomicity supported)
        max_ee_num = 0x0                (Maximum number of EEC supported)
        max_rdd_num = 0x0               (Maximum number of IB_RDD supported)
        max_mw_num = 0x0                (Maximum Number of memory
windows supported)
        max_raw_ipv6_qp = 0x0           (Maximum number of Raw IPV6
QPs supported)
        max_raw_ethy_qp = 0x0           (Maximum number of Raw
Ethertypes QPs supported)
        max_mcast_grp_num = 0x2000      (Maximum Number of multicast groups)
        max_mcast_qp_attach_num = 0x8   (Maximum number of QP per
multicast group)
        max_ah_num = 0x0                (Maximum number of address handles)
        max_num_fmr = 0x0               (Maximum number FMRs)
        max_num_map_per_fmr = 0x7fff    (Maximum number of (re)maps per FMR befo
re an unmap operation in required)
                port=1
                port_state=PORT_ACTIVE (4)
                link_speed=2.5Gbps (1)
                link_width=4x (2)
                rate=10
                sm_lid=0x0001
                port_lid=0x0012
                port_lmc=0x0
                max_mtu=2048 (4)
                max_msg_sz=0x80000000   (Max message size)
                capabilities: VENDOR_CLASS,TRAP,APM,SL_MAP,LED_INFO,CLIENT_REG,S
YSGUID,
                max_vl_num=0x0          (Maximum number of VL supported by this
port)
                bad_pkey_counter=0x0    (Bad PKey counter)
                qkey_viol_counter=0x0   (QKey violation counter)
                sm_sl=0x0               (IB_SL to be used in communication with
subnet manager)
                pkey_tbl_len=0x40       (Current size of pkey table)
                gid_tbl_len=0x20        (Current size of GID table)
                subnet_timeout=0x12     (Subnet Timeout for this port (see PortI
nfo))
                initTypeReply=0x0       (optional InitTypeReply value. 0 if not
supported)
                GID[0]=fe80:0000:0000:0000:0002:c902:0023:792d


Thanks & Regards
Rakesh Thakur