Hi Al,
On 14:25 Mon 07 Jul , Al Chu wrote:
>
> With all of these file-input possibilities for OpenSM routing, I don't
> think there is a way to tell OpenSM to reroute if (for example) the file
> input has changed but the network/fabric has not.
Yes, but you can request a heavy sweep with SIGHUP or from console.
> This is a patch to
> add a command to the console to tell the console to reroute but not do a
> heavy sweep.
[snip...]
> diff --git a/opensm/opensm/osm_state_mgr.c b/opensm/opensm/osm_state_mgr.c
> index 87d6d5b..0501aa2 100644
> --- a/opensm/opensm/osm_state_mgr.c
> +++ b/opensm/opensm/osm_state_mgr.c
> @@ -1020,6 +1020,7 @@ static void do_sweep(osm_sm_t * sm)
> && sm->p_subn->sm_state != IB_SMINFO_STATE_DISCOVERING
> && sm->p_subn->opt.force_heavy_sweep == FALSE
> && sm->p_subn->force_heavy_sweep == FALSE
> + && sm->p_subn->force_reroute == FALSE
> && sm->p_subn->subnet_initialization_error == FALSE
> && (__osm_state_mgr_light_sweep_start(sm) == IB_SUCCESS)) {
> if (wait_for_pending_transactions(&sm->p_subn->p_osm->stats))
> @@ -1031,11 +1032,43 @@ static void do_sweep(osm_sm_t * sm)
> }
> }
>
> + /*
> + * If we don't need to do a heavy sweep and we want to do a reroute,
> + * just reroute only.
> + */
> + if (cl_qmap_count(&sm->p_subn->sw_guid_tbl)
> + && sm->p_subn->sm_state != IB_SMINFO_STATE_DISCOVERING
> + && sm->p_subn->opt.force_heavy_sweep == FALSE
> + && sm->p_subn->force_heavy_sweep == FALSE
> + && sm->p_subn->force_reroute == TRUE
> + && sm->p_subn->subnet_initialization_error == FALSE) {
> + /* Reset flag */
> + sm->p_subn->force_reroute = FALSE;
> +
> + /* Re-program the switches fully */
> + sm->p_subn->ignore_existing_lfts = TRUE;
> +
> + osm_ucast_mgr_process(&sm->ucast_mgr);
> +
> + /* Reset flag */
> + sm->p_subn->ignore_existing_lfts = FALSE;
> +
> + if (wait_for_pending_transactions(&sm->p_subn->p_osm->stats))
> + return;
> +
> + if (!sm->p_subn->force_heavy_sweep) {
I cannot see how 'force_heavy_sweep' can be triggered by
osm_ucast_mgr_process(), but I do see that 'subnet_initialization_error'
can be set to TRUE during re-routing. So it looks that we need to check
this flag instead.
Sasha
> + osm_log_msg_box(sm->p_log, OSM_LOG_VERBOSE,
> + __FUNCTION__, "REROUTE COMPLETE");
> + return;
> + }
> + }
> +
> /* go to heavy sweep */
> _repeat_discovery:
>
> /* First of all - unset all flags */
> sm->p_subn->force_heavy_sweep = FALSE;
> + sm->p_subn->force_reroute = FALSE;
> sm->p_subn->subnet_initialization_error = FALSE;
>
> /* rescan configuration updates */
> --
> 1.5.4.5
>
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