From: Amir Shehata <amir.sheh...@intel.com> This patch adds NUMA node support. NUMA node information is stored in the CPT table. A NUMA node mask is maintained for the entire table as well as for each CPT to track the NUMA nodes related to each of the CPTs. Add new function cfs_cpt_of_node() which returns the CPT of a particular NUMA node.
Signed-off-by: Amir Shehata <amir.sheh...@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7734 Reviewed-on: http://review.whamcloud.com/18916 Reviewed-by: Olaf Weber <o...@sgi.com> Reviewed-by: Doug Oucharek <dou...@me.com> Signed-off-by: James Simmons <jsimm...@infradead.org> --- .../staging/lustre/include/linux/libcfs/libcfs_cpu.h | 4 ++++ .../lustre/include/linux/libcfs/linux/linux-cpu.h | 2 ++ drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c | 6 ++++++ drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c | 19 +++++++++++++++++++ 4 files changed, 31 insertions(+) diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h index 070f8fe..839ec02 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h @@ -139,6 +139,10 @@ struct cfs_cpt_table { */ int cfs_cpt_of_cpu(struct cfs_cpt_table *cptab, int cpu); /** + * shadow HW node ID \a NODE to CPU-partition ID by \a cptab + */ +int cfs_cpt_of_node(struct cfs_cpt_table *cptab, int node); +/** * bind current thread on a CPU-partition \a cpt of \a cptab */ int cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt); diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h index e8bbbaa..1bed0ba 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h @@ -68,6 +68,8 @@ struct cfs_cpt_table { int *ctb_cpu2cpt; /* all cpus in this partition table */ cpumask_var_t ctb_cpumask; + /* shadow HW node to CPU partition ID */ + int *ctb_node2cpt; /* all nodes in this partition table */ nodemask_t *ctb_nodemask; }; diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c b/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c index 5ea294f..e6d1512 100644 --- a/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c +++ b/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c @@ -198,6 +198,12 @@ cpumask_var_t *cfs_cpt_cpumask(struct cfs_cpt_table *cptab, int cpt) } EXPORT_SYMBOL(cfs_cpt_of_cpu); +int cfs_cpt_of_node(struct cfs_cpt_table *cptab, int node) +{ + return 0; +} +EXPORT_SYMBOL(cfs_cpt_of_node); + int cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt) { diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c index 741db69..fd0c451 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c @@ -70,6 +70,7 @@ int i; kvfree(cptab->ctb_cpu2cpt); + kvfree(cptab->ctb_node2cpt); for (i = 0; cptab->ctb_parts && i < cptab->ctb_nparts; i++) { struct cfs_cpu_partition *part = &cptab->ctb_parts[i]; @@ -114,6 +115,15 @@ struct cfs_cpt_table * memset(cptab->ctb_cpu2cpt, -1, nr_cpu_ids * sizeof(cptab->ctb_cpu2cpt[0])); + cptab->ctb_node2cpt = kvmalloc_array(nr_node_ids, + sizeof(cptab->ctb_node2cpt[0]), + GFP_KERNEL); + if (!cptab->ctb_node2cpt) + goto failed; + + memset(cptab->ctb_node2cpt, -1, + nr_node_ids * sizeof(cptab->ctb_node2cpt[0])); + cptab->ctb_parts = kvmalloc_array(ncpt, sizeof(cptab->ctb_parts[0]), GFP_KERNEL); if (!cptab->ctb_parts) @@ -484,6 +494,15 @@ struct cfs_cpt_table * } EXPORT_SYMBOL(cfs_cpt_of_cpu); +int cfs_cpt_of_node(struct cfs_cpt_table *cptab, int node) +{ + if (node < 0 || node > nr_node_ids) + return CFS_CPT_ANY; + + return cptab->ctb_node2cpt[node]; +} +EXPORT_SYMBOL(cfs_cpt_of_node); + int cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt) { -- 1.8.3.1
