984982790a
This commit represents the conversion of the usnic BTL from verbs to
libfabric.
For the moment, libfabric is embedded in Open MPI (currently in the
usnic BTL). This is because the libfabric API is still changing, and
also has not yet been released. Ultimately, this embedded copy of
libfabric will likely disappear and the usnic BTL will rely on an
external installation of libfabric.
New configure options:
* --with-libfabric: will cause configure to fail if libfabric support
cannot be built
* --without-libfabric: will prevent libfabric support from being built
* --with-libfabric=DIR: use an external libfabric installation
* --with-libfabric-libdir=LIBDIR: when paired with --with-libfabric=DIR,
use LIBDIR for the libfabric installation library dir
The --with-libnl3[-libdir] arguments are now gone.
126 строки
2.7 KiB
C
126 строки
2.7 KiB
C
/*
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* Copyright (c) 2013-2014 Cisco Systems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#ifndef BTL_USNIC_UTIL_H
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#define BTL_USNIC_UTIL_H
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#include "opal/datatype/opal_convertor.h"
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#include "btl_usnic.h"
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#ifndef MIN
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# define MIN(a,b) ((a) < (b) ? (a) : (b))
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#endif
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/* avoid "defined but not used" warnings */
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static inline int __opal_attribute_always_inline__ usnic_fls(int x)
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__opal_attribute_unused__;
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static inline int __opal_attribute_always_inline__ usnic_fls(int x)
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{
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int r = 32;
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if (!x) {
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return 0;
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}
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if (!(x & 0xffff0000u)) {
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x <<= 16;
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r -= 16;
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}
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if (!(x & 0xff000000u)) {
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x <<= 8;
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r -= 8;
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}
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if (!(x & 0xf0000000u)) {
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x <<= 4;
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r -= 4;
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}
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if (!(x & 0xc0000000u)) {
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x <<= 2;
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r -= 2;
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}
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if (!(x & 0x80000000u)) {
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r -= 1;
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}
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return r;
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}
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/* a helper function that just declutters convertor packing */
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static inline void
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usnic_convertor_pack_simple(
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opal_convertor_t *convertor,
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void *dest,
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size_t max_bytes_to_pack,
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size_t *bytes_packed)
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{
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int rc;
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struct iovec iov;
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uint32_t iov_count;
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iov.iov_base = (IOVBASE_TYPE*)dest;
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iov.iov_len = max_bytes_to_pack;
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iov_count = 1;
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*bytes_packed = max_bytes_to_pack;
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rc = opal_convertor_pack(convertor, &iov, &iov_count, bytes_packed);
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if (OPAL_UNLIKELY(rc < 0)) {
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BTL_ERROR(("opal_convertor_pack error"));
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abort(); /* XXX */
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}
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}
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static inline int
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usnic_netmask_to_cidrlen(
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uint32_t netmask_be)
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{
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return 33 - ffs(ntohl(netmask_be));
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}
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static inline uint32_t
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usnic_cidrlen_to_netmask(
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int cidrlen)
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{
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uint32_t mask;
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mask = ~0 << (32 - cidrlen);
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return htonl(mask);
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}
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/*
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* Safely (but abnornmally) exit this process without abort()'ing (and
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* leaving a corefile).
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*/
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struct opal_btl_usnic_module_t;
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void opal_btl_usnic_exit(struct opal_btl_usnic_module_t *module);
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/*
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* Print a show_help message and then call opal_btl_usnic_exit().
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*/
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void opal_btl_usnic_util_abort(const char *msg, const char *file, int line);
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/*
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* Long enough to hold "xxx.xxx.xxx.xxx/xx"
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*/
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#define IPV4STRADDRLEN 20
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/*
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* If netmask==0, it is not included in the output string. addr is
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* expected to be in network byte order.
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*/
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void opal_btl_usnic_snprintf_ipv4_addr(char *out, size_t maxlen,
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uint32_t addr, uint32_t netmask);
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void opal_btl_usnic_snprintf_bool_array(char *s, size_t slen, bool a[], size_t alen);
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void opal_btl_usnic_dump_hex(void *vaddr, int len);
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size_t opal_btl_usnic_convertor_pack_peek(const opal_convertor_t *conv,
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size_t max_len);
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#endif /* BTL_USNIC_UTIL_H */
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