if (cptab->ctb_cpu2cpt != NULL) {
LIBCFS_FREE(cptab->ctb_cpu2cpt,
- num_possible_cpus() *
- sizeof(cptab->ctb_cpu2cpt[0]));
+ nr_cpu_ids * sizeof(cptab->ctb_cpu2cpt[0]));
+ }
+
+ if (cptab->ctb_node2cpt != NULL) {
+ LIBCFS_FREE(cptab->ctb_node2cpt,
+ nr_node_ids * sizeof(cptab->ctb_node2cpt[0]));
}
for (i = 0; cptab->ctb_parts != NULL && i < cptab->ctb_nparts; i++) {
if (part->cpt_cpumask != NULL)
LIBCFS_FREE(part->cpt_cpumask, cpumask_size());
+
+ if (part->cpt_distance) {
+ LIBCFS_FREE(part->cpt_distance,
+ cptab->ctb_nparts *
+ sizeof(part->cpt_distance[0]));
+ }
}
if (cptab->ctb_parts != NULL) {
goto failed;
LIBCFS_ALLOC(cptab->ctb_cpu2cpt,
- num_possible_cpus() * sizeof(cptab->ctb_cpu2cpt[0]));
+ nr_cpu_ids * sizeof(cptab->ctb_cpu2cpt[0]));
if (cptab->ctb_cpu2cpt == NULL)
goto failed;
memset(cptab->ctb_cpu2cpt, -1,
- num_possible_cpus() * sizeof(cptab->ctb_cpu2cpt[0]));
+ nr_cpu_ids * sizeof(cptab->ctb_cpu2cpt[0]));
+
+ LIBCFS_ALLOC(cptab->ctb_node2cpt,
+ nr_node_ids * sizeof(cptab->ctb_node2cpt[0]));
+ if (cptab->ctb_node2cpt == NULL)
+ goto failed;
+
+ memset(cptab->ctb_node2cpt, -1,
+ nr_node_ids * sizeof(cptab->ctb_node2cpt[0]));
LIBCFS_ALLOC(cptab->ctb_parts, ncpt * sizeof(cptab->ctb_parts[0]));
if (cptab->ctb_parts == NULL)
struct cfs_cpu_partition *part = &cptab->ctb_parts[i];
LIBCFS_ALLOC(part->cpt_cpumask, cpumask_size());
+ if (!part->cpt_cpumask)
+ goto failed;
+
LIBCFS_ALLOC(part->cpt_nodemask, sizeof(*part->cpt_nodemask));
- if (part->cpt_cpumask == NULL || part->cpt_nodemask == NULL)
+ if (!part->cpt_nodemask)
+ goto failed;
+
+ LIBCFS_ALLOC(part->cpt_distance,
+ cptab->ctb_nparts * sizeof(part->cpt_distance[0]));
+ if (!part->cpt_distance)
goto failed;
}
cfs_cpt_table_print(struct cfs_cpt_table *cptab, char *buf, int len)
{
char *tmp = buf;
- int rc = 0;
+ int rc = -EFBIG;
int i;
int j;
for (i = 0; i < cptab->ctb_nparts; i++) {
- if (len > 0) {
- rc = snprintf(tmp, len, "%d\t: ", i);
- len -= rc;
- }
+ if (len <= 0)
+ goto out;
- if (len <= 0) {
- rc = -EFBIG;
+ rc = snprintf(tmp, len, "%d\t:", i);
+ len -= rc;
+
+ if (len <= 0)
goto out;
- }
tmp += rc;
for_each_cpu(j, cptab->ctb_parts[i].cpt_cpumask) {
- rc = snprintf(tmp, len, "%d ", j);
+ rc = snprintf(tmp, len, " %d", j);
len -= rc;
- if (len <= 0) {
- rc = -EFBIG;
+ if (len <= 0)
goto out;
- }
tmp += rc;
}
tmp++;
len--;
}
-
-out:
+ rc = 0;
+ out:
if (rc < 0)
return rc;
EXPORT_SYMBOL(cfs_cpt_table_print);
int
+cfs_cpt_distance_print(struct cfs_cpt_table *cptab, char *buf, int len)
+{
+ char *tmp = buf;
+ int rc = -EFBIG;
+ int i;
+ int j;
+
+ for (i = 0; i < cptab->ctb_nparts; i++) {
+ if (len <= 0)
+ goto out;
+
+ rc = snprintf(tmp, len, "%d\t:", i);
+ len -= rc;
+
+ if (len <= 0)
+ goto out;
+
+ tmp += rc;
+ for (j = 0; j < cptab->ctb_nparts; j++) {
+ rc = snprintf(tmp, len, " %d:%d",
+ j, cptab->ctb_parts[i].cpt_distance[j]);
+ len -= rc;
+ if (len <= 0)
+ goto out;
+ tmp += rc;
+ }
+
+ *tmp = '\n';
+ tmp++;
+ len--;
+ }
+ rc = 0;
+ out:
+ if (rc < 0)
+ return rc;
+
+ return tmp - buf;
+}
+EXPORT_SYMBOL(cfs_cpt_distance_print);
+
+int
cfs_cpt_number(struct cfs_cpt_table *cptab)
{
return cptab->ctb_nparts;
}
EXPORT_SYMBOL(cfs_cpt_nodemask);
+unsigned
+cfs_cpt_distance(struct cfs_cpt_table *cptab, int cpt1, int cpt2)
+{
+ LASSERT(cpt1 == CFS_CPT_ANY || (cpt1 >= 0 && cpt1 < cptab->ctb_nparts));
+ LASSERT(cpt2 == CFS_CPT_ANY || (cpt2 >= 0 && cpt2 < cptab->ctb_nparts));
+
+ if (cpt1 == CFS_CPT_ANY || cpt2 == CFS_CPT_ANY)
+ return cptab->ctb_distance;
+
+ return cptab->ctb_parts[cpt1].cpt_distance[cpt2];
+}
+EXPORT_SYMBOL(cfs_cpt_distance);
+
+/*
+ * Calculate the maximum NUMA distance between all nodes in the
+ * from_mask and all nodes in the to_mask.
+ */
+static unsigned
+cfs_cpt_distance_calculate(nodemask_t *from_mask, nodemask_t *to_mask)
+{
+ unsigned maximum;
+ unsigned distance;
+ int to;
+ int from;
+
+ maximum = 0;
+ for_each_node_mask(from, *from_mask) {
+ for_each_node_mask(to, *to_mask) {
+ distance = node_distance(from, to);
+ if (maximum < distance)
+ maximum = distance;
+ }
+ }
+ return maximum;
+}
+
+static void cfs_cpt_add_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
+{
+ cptab->ctb_cpu2cpt[cpu] = cpt;
+
+ cpumask_set_cpu(cpu, cptab->ctb_cpumask);
+ cpumask_set_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask);
+}
+
+static void cfs_cpt_del_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
+{
+ cpumask_clear_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask);
+ cpumask_clear_cpu(cpu, cptab->ctb_cpumask);
+
+ cptab->ctb_cpu2cpt[cpu] = -1;
+}
+
+static void cfs_cpt_add_node(struct cfs_cpt_table *cptab, int cpt, int node)
+{
+ int cpt2;
+ struct cfs_cpu_partition *part;
+ struct cfs_cpu_partition *part2;
+
+ if (!node_isset(node, *cptab->ctb_nodemask)) {
+ /* first time node is added to the CPT table */
+ node_set(node, *cptab->ctb_nodemask);
+ cptab->ctb_node2cpt[node] = cpt;
+ cptab->ctb_distance = cfs_cpt_distance_calculate(
+ cptab->ctb_nodemask,
+ cptab->ctb_nodemask);
+ }
+
+ part = &cptab->ctb_parts[cpt];
+ if (!node_isset(node, *part->cpt_nodemask)) {
+ /* first time node is added to this CPT */
+ node_set(node, *part->cpt_nodemask);
+ for (cpt2 = 0; cpt2 < cptab->ctb_nparts; cpt2++) {
+ part2 = &cptab->ctb_parts[cpt2];
+ part->cpt_distance[cpt2] = cfs_cpt_distance_calculate(
+ part->cpt_nodemask,
+ part2->cpt_nodemask);
+ part2->cpt_distance[cpt] = cfs_cpt_distance_calculate(
+ part2->cpt_nodemask,
+ part->cpt_nodemask);
+ }
+ }
+}
+
+static void cfs_cpt_del_node(struct cfs_cpt_table *cptab, int cpt, int node)
+{
+ int cpu;
+ int cpt2;
+ struct cfs_cpu_partition *part;
+ struct cfs_cpu_partition *part2;
+
+ part = &cptab->ctb_parts[cpt];
+
+ for_each_cpu(cpu, part->cpt_cpumask) {
+ /* this CPT has other CPU belonging to this node? */
+ if (cpu_to_node(cpu) == node)
+ break;
+ }
+
+ if (cpu >= nr_cpu_ids && node_isset(node, *part->cpt_nodemask)) {
+ /* No more CPUs in the node for this CPT. */
+ node_clear(node, *part->cpt_nodemask);
+ for (cpt2 = 0; cpt2 < cptab->ctb_nparts; cpt2++) {
+ part2 = &cptab->ctb_parts[cpt2];
+ if (node_isset(node, *part2->cpt_nodemask))
+ cptab->ctb_node2cpt[node] = cpt2;
+ part->cpt_distance[cpt2] = cfs_cpt_distance_calculate(
+ part->cpt_nodemask,
+ part2->cpt_nodemask);
+ part2->cpt_distance[cpt] = cfs_cpt_distance_calculate(
+ part2->cpt_nodemask,
+ part->cpt_nodemask);
+ }
+ }
+
+ for_each_cpu(cpu, cptab->ctb_cpumask) {
+ /* this CPT-table has other CPUs belonging to this node? */
+ if (cpu_to_node(cpu) == node)
+ break;
+ }
+
+ if (cpu >= nr_cpu_ids && node_isset(node, *cptab->ctb_nodemask)) {
+ /* No more CPUs in the table for this node. */
+ node_clear(node, *cptab->ctb_nodemask);
+ cptab->ctb_node2cpt[node] = -1;
+ cptab->ctb_distance =
+ cfs_cpt_distance_calculate(cptab->ctb_nodemask,
+ cptab->ctb_nodemask);
+ }
+}
+
int
cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
{
- int node;
-
LASSERT(cpt >= 0 && cpt < cptab->ctb_nparts);
if (cpu < 0 || cpu >= nr_cpu_ids || !cpu_online(cpu)) {
return 0;
}
- cptab->ctb_cpu2cpt[cpu] = cpt;
-
LASSERT(!cpumask_test_cpu(cpu, cptab->ctb_cpumask));
LASSERT(!cpumask_test_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask));
- cpumask_set_cpu(cpu, cptab->ctb_cpumask);
- cpumask_set_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask);
-
- node = cpu_to_node(cpu);
-
- /* first CPU of @node in this CPT table */
- if (!node_isset(node, *cptab->ctb_nodemask))
- node_set(node, *cptab->ctb_nodemask);
-
- /* first CPU of @node in this partition */
- if (!node_isset(node, *cptab->ctb_parts[cpt].cpt_nodemask))
- node_set(node, *cptab->ctb_parts[cpt].cpt_nodemask);
+ cfs_cpt_add_cpu(cptab, cpt, cpu);
+ cfs_cpt_add_node(cptab, cpt, cpu_to_node(cpu));
return 1;
}
void
cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
{
- int node;
- int i;
-
LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
if (cpu < 0 || cpu >= nr_cpu_ids) {
LASSERT(cpumask_test_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask));
LASSERT(cpumask_test_cpu(cpu, cptab->ctb_cpumask));
- cpumask_clear_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask);
- cpumask_clear_cpu(cpu, cptab->ctb_cpumask);
- cptab->ctb_cpu2cpt[cpu] = -1;
-
- node = cpu_to_node(cpu);
-
- LASSERT(node_isset(node, *cptab->ctb_parts[cpt].cpt_nodemask));
- LASSERT(node_isset(node, *cptab->ctb_nodemask));
-
- for_each_cpu(i, cptab->ctb_parts[cpt].cpt_cpumask) {
- /* this CPT has other CPU belonging to this node? */
- if (cpu_to_node(i) == node)
- break;
- }
-
- if (i >= nr_cpu_ids)
- node_clear(node, *cptab->ctb_parts[cpt].cpt_nodemask);
-
- for_each_cpu(i, cptab->ctb_cpumask) {
- /* this CPT-table has other CPU belonging to this node? */
- if (cpu_to_node(i) == node)
- break;
- }
-
- if (i >= nr_cpu_ids)
- node_clear(node, *cptab->ctb_nodemask);
+ cfs_cpt_del_cpu(cptab, cpt, cpu);
+ cfs_cpt_del_node(cptab, cpt, cpu_to_node(cpu));
}
EXPORT_SYMBOL(cfs_cpt_unset_cpu);
}
for_each_cpu(cpu, mask) {
- if (!cfs_cpt_set_cpu(cptab, cpt, cpu))
- return 0;
+ cfs_cpt_add_cpu(cptab, cpt, cpu);
+ cfs_cpt_add_node(cptab, cpt, cpu_to_node(cpu));
}
return 1;
cfs_cpt_set_node(struct cfs_cpt_table *cptab, int cpt, int node)
{
const cpumask_t *mask;
- int rc;
+ int cpu;
- if (node < 0 || node >= MAX_NUMNODES) {
+ if (node < 0 || node >= nr_node_ids) {
CDEBUG(D_INFO,
"Invalid NUMA id %d for CPU partition %d\n", node, cpt);
return 0;
}
mask = cpumask_of_node(node);
- rc = cfs_cpt_set_cpumask(cptab, cpt, mask);
- return rc;
+ for_each_cpu(cpu, mask)
+ cfs_cpt_add_cpu(cptab, cpt, cpu);
+
+ cfs_cpt_add_node(cptab, cpt, node);
+
+ return 1;
}
EXPORT_SYMBOL(cfs_cpt_set_node);
cfs_cpt_unset_node(struct cfs_cpt_table *cptab, int cpt, int node)
{
const cpumask_t *mask;
+ int cpu;
- if (node < 0 || node >= MAX_NUMNODES) {
+ if (node < 0 || node >= nr_node_ids) {
CDEBUG(D_INFO,
"Invalid NUMA id %d for CPU partition %d\n", node, cpt);
return;
}
mask = cpumask_of_node(node);
- cfs_cpt_unset_cpumask(cptab, cpt, mask);
+ for_each_cpu(cpu, mask)
+ cfs_cpt_del_cpu(cptab, cpt, cpu);
+
+ cfs_cpt_del_node(cptab, cpt, node);
}
EXPORT_SYMBOL(cfs_cpt_unset_node);
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)
{
cpumask_t *cpumask;
return cptab;
}
- high = node ? MAX_NUMNODES - 1 : nr_cpu_ids - 1;
+ high = node ? nr_node_ids - 1 : nr_cpu_ids - 1;
for (str = cfs_trimwhite(pattern), c = 0;; c++) {
struct cfs_range_expr *range;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff