static int
usdf_getinfo(uint32_t version, const char *node, const char *service,
uint64_t flags, struct fi_info *hints, struct fi_info **info)
{
struct usdf_usnic_info *dp;
struct usdf_dev_entry *dep;
struct usd_device_attrs *dap;
struct fi_info *fi_first;
struct fi_info *fi_last;
struct addrinfo *ai;
struct sockaddr_in *src;
struct sockaddr_in *dest;
enum fi_ep_type ep_type;
int metric;
int d;
int ret;
USDF_TRACE("\n");
fi_first = NULL;
fi_last = NULL;
ai = NULL;
src = NULL;
dest = NULL;
/*
* Get and cache usNIC device info
*/
if (__usdf_devinfo == NULL) {
ret = usdf_get_devinfo();
if (ret != 0) {
USDF_WARN("failed to usdf_get_devinfo, ret=%d (%s)\n",
ret, fi_strerror(-ret));
if (ret == -FI_ENODEV)
ret = -FI_ENODATA;
goto fail;
}
}
dp = __usdf_devinfo;
if (node != NULL || service != NULL) {
ret = getaddrinfo(node, service, NULL, &ai);
if (ret != 0) {
USDF_DBG("getaddrinfo failed, likely bad node/service specified (%s:%s)\n",
node, service);
ret = -errno;
goto fail;
}
if (flags & FI_SOURCE) {
src = (struct sockaddr_in *)ai->ai_addr;
} else {
dest = (struct sockaddr_in *)ai->ai_addr;
}
}
if (hints != NULL) {
if (dest == NULL && hints->dest_addr != NULL) {
dest = hints->dest_addr;
}
if (src == NULL && hints->src_addr != NULL) {
src = hints->src_addr;
}
}
for (d = 0; d < dp->uu_num_devs; ++d) {
dep = &dp->uu_info[d];
dap = &dep->ue_dattr;
/* skip this device if it has some problem */
if (!dep->ue_dev_ok) {
USDF_DBG("skipping %s/%s\n", dap->uda_devname,
dap->uda_ifname);
continue;
}
/* See if dest is reachable from this device */
if (dest != NULL && dest->sin_addr.s_addr != INADDR_ANY) {
ret = usdf_get_distance(dap,
dest->sin_addr.s_addr, &metric);
if (ret != 0) {
goto fail;
}
if (metric == -1) {
USDF_DBG("dest %s unreachable from %s/%s, skipping\n",
inet_ntoa(dest->sin_addr),
dap->uda_devname, dap->uda_ifname);
continue;
}
}
/* Does this device match requested attributes? */
if (hints != NULL) {
ret = usdf_validate_hints(hints, dap);
if (ret != 0) {
USDF_DBG("hints do not match for %s/%s, skipping\n",
dap->uda_devname, dap->uda_ifname);
continue;
}
ep_type = hints->ep_attr ? hints->ep_attr->type :
FI_EP_UNSPEC;
} else {
ep_type = FI_EP_UNSPEC;
}
if (ep_type == FI_EP_DGRAM || ep_type == FI_EP_UNSPEC) {
ret = usdf_fill_info_dgram(version, hints, src, dest,
dap, &fi_first, &fi_last);
if (ret != 0 && ret != -FI_ENODATA) {
goto fail;
}
}
if (ep_type == FI_EP_MSG || ep_type == FI_EP_UNSPEC) {
ret = usdf_fill_info_msg(hints, src, dest, dap,
&fi_first, &fi_last);
if (ret != 0 && ret != -FI_ENODATA) {
goto fail;
}
}
if (ep_type == FI_EP_RDM || ep_type == FI_EP_UNSPEC) {
ret = usdf_fill_info_rdm(hints, src, dest, dap,
&fi_first, &fi_last);
if (ret != 0 && ret != -FI_ENODATA) {
goto fail;
}
}
}
if (fi_first != NULL) {
*info = fi_first;
ret = 0;
} else {
ret = -FI_ENODATA;
}
fail:
if (ret != 0) {
fi_freeinfo(fi_first);
}
if (ai != NULL) {
freeaddrinfo(ai);
}
if (ret != 0) {
USDF_INFO("returning %d (%s)\n", ret, fi_strerror(-ret));
}
return ret;
}
static int
usdf_getinfo(uint32_t version, const char *node, const char *service,
uint64_t flags, const struct fi_info *hints, struct fi_info **info)
{
struct usdf_usnic_info *dp;
struct usdf_dev_entry *dep;
struct usd_device_attrs *dap;
struct fi_info *fi_first;
struct fi_info *fi_last;
struct addrinfo *ai;
void *src;
void *dest;
enum fi_ep_type ep_type;
int d;
int ret;
USDF_TRACE("\n");
fi_first = NULL;
fi_last = NULL;
ai = NULL;
src = NULL;
dest = NULL;
/*
* Get and cache usNIC device info
*/
if (__usdf_devinfo == NULL) {
ret = usdf_get_devinfo();
if (ret != 0) {
USDF_WARN("failed to usdf_get_devinfo, ret=%d (%s)\n",
ret, fi_strerror(-ret));
if (ret == -FI_ENODEV)
ret = -FI_ENODATA;
goto fail;
}
}
dp = __usdf_devinfo;
/* Check the hints up front and fail if they're invalid. */
if (hints) {
ret = usdf_validate_hints(version, hints);
if (ret) {
USDF_WARN_SYS(FABRIC, "hints failed to validate\n");
goto fail;
}
}
/* Get the src and dest if user specified. */
ret = usdf_handle_node_and_service(node, service, flags,
&src, &dest, hints, &ai);
if (ret) {
USDF_WARN_SYS(FABRIC, "failed to handle node and service.\n");
goto fail;
}
if (hints != NULL) {
if (dest == NULL && hints->dest_addr != NULL)
dest = hints->dest_addr;
if (src == NULL && hints->src_addr != NULL)
src = hints->src_addr;
}
for (d = 0; d < dp->uu_num_devs; ++d) {
dep = &dp->uu_info[d];
dap = &dep->ue_dattr;
/* If the device has an issue or the hints don't match the
* device information, then skip.
*/
if (!usdf_check_device(version, hints, src, dest, dep))
continue;
if (hints && hints->ep_attr)
ep_type = hints->ep_attr->type;
else
ep_type = FI_EP_UNSPEC;
if (ep_type == FI_EP_DGRAM || ep_type == FI_EP_UNSPEC) {
ret = usdf_fill_info_dgram(version, hints, src, dest,
dap, &fi_first, &fi_last);
if (ret != 0 && ret != -FI_ENODATA) {
goto fail;
}
}
if (ep_type == FI_EP_MSG || ep_type == FI_EP_UNSPEC) {
ret = usdf_fill_info_msg(version, hints, src, dest,
dap, &fi_first, &fi_last);
if (ret != 0 && ret != -FI_ENODATA) {
goto fail;
}
}
if (ep_type == FI_EP_RDM || ep_type == FI_EP_UNSPEC) {
ret = usdf_fill_info_rdm(version, hints, src, dest,
dap, &fi_first, &fi_last);
if (ret != 0 && ret != -FI_ENODATA) {
goto fail;
}
}
}
if (fi_first != NULL) {
*info = fi_first;
ret = 0;
} else {
ret = -FI_ENODATA;
}
fail:
if (ai)
freeaddrinfo(ai);
if (ret != 0) {
fi_freeinfo(fi_first);
USDF_INFO("returning %d (%s)\n", ret, fi_strerror(-ret));
}
return ret;
}