Commit ee108585 authored by Yuval Shaia's avatar Yuval Shaia Committed by Marcel Apfelbaum
Browse files

configure: Check if we can use ibv_reg_mr_iova 



The function reg_mr_iova is an enhanced version of ibv_reg_mr function
that can help to easly register and use guest's MRs.

Add check in 'configure' phase to detect if we have libibverbs with this
support.

Signed-off-by: default avatarYuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: default avatarMarcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20190818132107.18181-2-yuval.shaia@oracle.com>
Signed-off-by: default avatarMarcel Apfelbaum <marcel.apfelbaum@gmail.com>
parent 412fbef3

configure

+28 −0
Original line number Diff line number Diff line
@@ -3217,6 +3217,34 @@ else 
    pvrdma="no"

fi



# Let's see if enhanced reg_mr is supported

if test "$pvrdma" = "yes" ; then



cat > $TMPC <<EOF &&

#include <infiniband/verbs.h>



int

main(void)

{

    struct ibv_mr *mr;

    struct ibv_pd *pd = NULL;

    size_t length = 10;

    uint64_t iova = 0;

    int access = 0;

    void *addr = NULL;



    mr = ibv_reg_mr_iova(pd, addr, length, iova, access);



    ibv_dereg_mr(mr);



    return 0;

}

EOF

    if ! compile_prog "" "-libverbs"; then

        QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"

    fi

fi



##########################################

# VNC SASL detection

if test "$vnc" = "yes" && test "$vnc_sasl" != "no" ; then