Hi Hal,
On 09:27 Fri 29 Apr , Hal Rosenstock wrote:
> From 28edb24012fe79ed5556dc612ad0d4b4b0d8c571 Mon Sep 17 00:00:00 2001
> From: Hal Rosenstock <[email protected]>
> Date: Thu, 28 Apr 2011 22:48:15 +0300
> Subject: [PATCH] opensm: Make SA assigned guids persistent across port
> down/up events
>
> Infrastructure in osm_subnet.[h c] with actual changes in
> opensm/osm_sa_guidinfo_record.c
>
> Signed-off-by: Hal Rosenstock <[email protected]>
> ---
> include/opensm/osm_subnet.h | 110
> ++++++++++++++++++++++++++++++++++++++-
> opensm/osm_sa_guidinfo_record.c | 36 ++++++++++++-
> opensm/osm_subnet.c | 41 ++++++++++++++-
> 3 files changed, 182 insertions(+), 5 deletions(-)
>
> diff --git a/include/opensm/osm_subnet.h b/include/opensm/osm_subnet.h
> index 914b9d4..5c19b19 100644
> --- a/include/opensm/osm_subnet.h
> +++ b/include/opensm/osm_subnet.h
> @@ -1,6 +1,6 @@
> /*
> * Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.
> - * Copyright (c) 2002-2010 Mellanox Technologies LTD. All rights reserved.
> + * Copyright (c) 2002-2011 Mellanox Technologies LTD. All rights reserved.
> * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
> * Copyright (c) 2008 Xsigo Systems Inc. All rights reserved.
> * Copyright (c) 2009 System Fabric Works, Inc. All rights reserved.
> @@ -527,6 +527,7 @@ typedef struct osm_subn {
> cl_qmap_t node_guid_tbl;
> cl_qmap_t port_guid_tbl;
> cl_qmap_t alias_port_guid_tbl;
> + cl_qmap_t assigned_guids_tbl;
> cl_qmap_t rtr_guid_tbl;
> cl_qlist_t prefix_routes_list;
> cl_qmap_t prtn_pkey_tbl;
> @@ -693,6 +694,35 @@ typedef struct osm_subn {
> * Subnet object
> *********/
>
> +/****s* OpenSM: Subnet/osm_assigned_guids_t
> +* NAME
> +* osm_assigned_guids_t
> +*
> +* DESCRIPTION
> +* SA assigned GUIDs structure.
> +*
> +* SYNOPSIS
> +*/
> +typedef struct osm_assigned_guids {
> + cl_map_item_t map_item;
> + ib_net64_t port_guid;
> + ib_net64_t assigned_guid[1];
> +} osm_assigned_guids_t;
You defined two global structs for keeping assigned alias guids. Why not just
have one qmap that will much for each alias guid its' osm_port (something like
port_guid_tbl). I think it might ease the code a bit.
> +/*
> +* FIELDS
> +* map_item
> +* Linkage structure for cl_qmap. MUST BE FIRST MEMBER!
> +*
> +* port_guid
> +* Base port GUID.
> +*
> +* assigned_guids
> +* Table of persistent SA assigned GUIDs.
> +*
> +* SEE ALSO
> +* Subnet object
> +*********/
> +
> /****f* OpenSM: Subnet/osm_subn_construct
> * NAME
> * osm_subn_construct
> @@ -1039,6 +1069,84 @@ struct osm_port *osm_get_port_by_alias_guid(IN
> osm_subn_t const *p_subn,
> * osm_port_t
> *********/
>
> +/****f* OpenSM: Port/osm_assigned_guids_new
> +* NAME
> +* osm_assigned_guids_new
> +*
> +* DESCRIPTION
> +* This function allocates and initializes an assigned guids object.
> +*
> +* SYNOPSIS
> +*/
> +osm_assigned_guids_t *osm_assigned_guids_new(IN const ib_net64_t port_guid,
> + IN const uint32_t num_guids);
> +/*
> +* PARAMETERS
> +* port_guid
> +* [in] Base port GUID in network order
> +*
> +* RETURN VALUE
> +* Pointer to the initialized assigned alias guid object.
> +*
> +* SEE ALSO
> +* Subnet object, osm_assigned_guids_t, osm_assigned_guids_delete,
> +* osm_get_assigned_guids_by_guid
> +*********/
> +
> +/****f* OpenSM: Port/osm_assigned_guids_delete
> +* NAME
> +* osm_assigned_guids_delete
> +*
> +* DESCRIPTION
> +* This function destroys and deallocates an assigned guids object.
> +*
> +* SYNOPSIS
> +*/
> +void osm_assigned_guids_delete(IN OUT osm_assigned_guids_t **
> pp_assigned_guids);
> +/*
> +* PARAMETERS
> +* pp_assigned_guids
> +* [in][out] Pointer to a pointer to an assigned guids object to
> delete.
> +* On return, this pointer is NULL.
> +*
> +* RETURN VALUE
> +* This function does not return a value.
> +*
> +* NOTES
> +* Performs any necessary cleanup of the specified assigned guids object.
> +*
> +* SEE ALSO
> +* Subnet object, osm_assigned_guids_new, osm_get_assigned_guids_by_guid
> +*********/
> +
> +/****f* OpenSM: Subnet/osm_get_assigned_guids_by_guid
> +* NAME
> +* osm_get_assigned_guids_by_guid
> +*
> +* DESCRIPTION
> +* This looks for the given port guid and returns a pointer
> +* to the guid table of SA assigned alias guids for that port.
> +*
> +* SYNOPSIS
> +*/
> +osm_assigned_guids_t *osm_get_assigned_guids_by_guid(IN osm_subn_t const
> *p_subn,
> + IN ib_net64_t port_guid);
> +/*
> +* PARAMETERS
> +* p_subn
> +* [in] Pointer to an osm_subn_t object
> +*
> +* port_guid
> +* [in] The base port guid in network order
> +*
> +* RETURN VALUES
> +* The osm_assigned_guids structure pointer if found. NULL otherwise.
> +*
> +* SEE ALSO
> +* Subnet object, osm_assigned_guids_new, osm_assigned_guids_delete,
> +* osm_assigned_guids_t
> +*********/
> +
> /****f* OpenSM: Port/osm_get_port_by_lid
> * NAME
> * osm_get_port_by_lid
> diff --git a/opensm/osm_sa_guidinfo_record.c b/opensm/osm_sa_guidinfo_record.c
> index 484633f..d932e08 100644
> --- a/opensm/osm_sa_guidinfo_record.c
> +++ b/opensm/osm_sa_guidinfo_record.c
> @@ -467,15 +467,15 @@ static void set_guidinfo(IN osm_sa_t *sa, IN osm_madw_t
> *p_madw,
> int i, j, dirty = 0;
> ib_sa_mad_t *p_sa_mad;
> ib_guidinfo_record_t *p_rcvd_rec;
> + osm_assigned_guids_t *p_assigned_guids = 0;
> osm_alias_guid_t *p_alias_guid, *p_alias_guid_check;
> cl_map_item_t *p_item;
> ib_net64_t set_alias_guid, del_alias_guid, assigned_guid;
> uint8_t set_mask;
>
> + max_block = (p_port->p_physp->port_info.guid_cap +
> GUID_TABLE_MAX_ENTRIES - 1) /
> + GUID_TABLE_MAX_ENTRIES;
> if (!p_port->p_physp->p_guids) {
> - max_block = (p_port->p_physp->port_info.guid_cap +
> GUID_TABLE_MAX_ENTRIES - 1) /
> - GUID_TABLE_MAX_ENTRIES;
> -
> p_port->p_physp->p_guids = calloc(max_block *
> GUID_TABLE_MAX_ENTRIES,
> sizeof(ib_net64_t));
> if (!p_port->p_physp->p_guids) {
> @@ -524,6 +524,18 @@ static void set_guidinfo(IN osm_sa_t *sa, IN osm_madw_t
> *p_madw,
> p_rcvd_rec->guid_info.guid[i % 8] =
> set_alias_guid;
> continue;
> }
> + /* Is there a persistent SA assigned guid for this
> index ? */
> + if (!p_assigned_guids)
> + p_assigned_guids =
> + osm_get_assigned_guids_by_guid(sa->p_subn,
> +
> p_port->p_physp->port_guid);
> + if (p_assigned_guids) {
> + set_alias_guid =
> p_assigned_guids->assigned_guid[i];
> + if (set_alias_guid) {
> + p_rcvd_rec->guid_info.guid[i % 8] =
> set_alias_guid;
> + goto add_alias_guid;
> + }
> + }
> }
> if (!set_alias_guid) {
> for (j = 0; j < 1000; j++) {
> @@ -540,6 +552,23 @@ static void set_guidinfo(IN osm_sa_t *sa, IN osm_madw_t
> *p_madw,
> if (p_item ==
> cl_qmap_end(&sa->sm->p_subn->alias_port_guid_tbl)) {
> set_alias_guid = assigned_guid;
> p_rcvd_rec->guid_info.guid[i % 8] =
> assigned_guid;
> + if (!p_assigned_guids) {
> + p_assigned_guids =
> osm_assigned_guids_new(p_port->p_physp->port_guid,
> +
> max_block * GUID_TABLE_MAX_ENTRIES);
> + if (p_assigned_guids) {
> +
> cl_qmap_insert(&(sa->p_subn->assigned_guids_tbl),
> +
> p_assigned_guids->port_guid,
> +
> &p_assigned_guids->map_item);
> + } else
> + OSM_LOG(sa->p_log,
> + OSM_LOG_ERROR,
> + "ERR 510D:
> osm_assigned_guids_new failed port GUID 0x%" PRIx64 " index %d\n",
If you reach here, it's probably because calloc in osm_assigned_guids_new()
failed. Don't you want to send an error and return here?
> +
> cl_ntoh64(p_port->p_physp->port_guid), i);
> + }
> + if (p_assigned_guids)
> +{
> +
> p_assigned_guids->assigned_guid[i] = assigned_guid;
> +}
> break;
> }
> }
> @@ -552,6 +581,7 @@ static void set_guidinfo(IN osm_sa_t *sa, IN osm_madw_t
> *p_madw,
> }
> }
>
> +add_alias_guid:
> /* allocate alias guid and add to alias guid table */
> p_alias_guid = osm_alias_guid_new(set_alias_guid, p_port);
> if (!p_alias_guid) {
> diff --git a/opensm/osm_subnet.c b/opensm/osm_subnet.c
> index 34eaf29..32b5e1e 100644
> --- a/opensm/osm_subnet.c
> +++ b/opensm/osm_subnet.c
> @@ -1,6 +1,6 @@
> /*
> * Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.
> - * Copyright (c) 2002-2010 Mellanox Technologies LTD. All rights reserved.
> + * Copyright (c) 2002-2011 Mellanox Technologies LTD. All rights reserved.
> * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
> * Copyright (c) 2008 Xsigo Systems Inc. All rights reserved.
> * Copyright (c) 2009 System Fabric Works, Inc. All rights reserved.
> @@ -420,6 +420,7 @@ void osm_subn_construct(IN osm_subn_t * p_subn)
> cl_qmap_init(&p_subn->node_guid_tbl);
> cl_qmap_init(&p_subn->port_guid_tbl);
> cl_qmap_init(&p_subn->alias_port_guid_tbl);
> + cl_qmap_init(&p_subn->assigned_guids_tbl);
> cl_qmap_init(&p_subn->sm_guid_tbl);
> cl_qlist_init(&p_subn->sa_sr_list);
> cl_qlist_init(&p_subn->sa_infr_list);
> @@ -433,6 +434,7 @@ void osm_subn_destroy(IN osm_subn_t * p_subn)
> {
> int i;
> osm_node_t *p_node, *p_next_node;
> + osm_assigned_guids_t *p_assigned_guids, *p_next_assigned_guids;
> osm_alias_guid_t *p_alias_guid, *p_next_alias_guid;
> osm_port_t *p_port, *p_next_port;
> osm_switch_t *p_sw, *p_next_sw;
> @@ -450,6 +452,14 @@ void osm_subn_destroy(IN osm_subn_t * p_subn)
> osm_node_delete(&p_node);
> }
>
> + p_next_assigned_guids = (osm_assigned_guids_t *)
> cl_qmap_head(&p_subn->assigned_guids_tbl);
> + while (p_next_assigned_guids !=
> + (osm_assigned_guids_t *)
> cl_qmap_end(&p_subn->assigned_guids_tbl)) {
> + p_assigned_guids = p_next_assigned_guids;
> + p_next_assigned_guids = (osm_assigned_guids_t *)
> cl_qmap_next(&p_assigned_guids->map_item);
> + osm_assigned_guids_delete(&p_assigned_guids);
> + }
> +
> p_next_alias_guid = (osm_alias_guid_t *)
> cl_qmap_head(&p_subn->alias_port_guid_tbl);
> while (p_next_alias_guid !=
> (osm_alias_guid_t *) cl_qmap_end(&p_subn->alias_port_guid_tbl)) {
> @@ -652,6 +662,35 @@ osm_port_t *osm_get_port_by_alias_guid(IN osm_subn_t
> const *p_subn,
> return p_alias_guid->p_base_port;
> }
>
> +osm_assigned_guids_t *osm_assigned_guids_new(IN const ib_net64_t port_guid,
> + IN const uint32_t num_guids)
> +{
> + osm_assigned_guids_t *p_assigned_guids;
> +
> + p_assigned_guids = calloc(1, sizeof(*p_assigned_guids) +
> + sizeof(ib_net64_t) * (num_guids - 1));
> + if (p_assigned_guids)
> + p_assigned_guids->port_guid = port_guid;
> + return p_assigned_guids;
> +}
> +
> +void osm_assigned_guids_delete(IN OUT osm_assigned_guids_t **
> pp_assigned_guids)
> +{
> + free(*pp_assigned_guids);
> + *pp_assigned_guids = NULL;
> +}
> +
> +osm_assigned_guids_t *osm_get_assigned_guids_by_guid(IN osm_subn_t const
> *p_subn,
> + IN ib_net64_t port_guid)
> +{
> + osm_assigned_guids_t *p_assigned_guids;
> +
> + p_assigned_guids = (osm_assigned_guids_t *)
> cl_qmap_get(&(p_subn->assigned_guids_tbl), port_guid);
> + if (p_assigned_guids == (osm_assigned_guids_t *)
> cl_qmap_end(&(p_subn->assigned_guids_tbl)))
> + return NULL;
> + return p_assigned_guids;
> +}
> +
> osm_port_t *osm_get_port_by_lid_ho(IN osm_subn_t const * subn, IN uint16_t
> lid)
> {
> if (lid < cl_ptr_vector_get_size(&subn->port_lid_tbl))
> --
> 1.5.3
>
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--
-- Alex
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