{
struct nrs_tbf_rule *rule;
+ memset(cli, 0, sizeof(*cli));
cli->tc_in_heap = false;
head->th_ops->o_cli_init(cli, req);
INIT_LIST_HEAD(&cli->tc_list);
* This uses ptlrpc_request::rq_peer.nid as its key, in order to hash
* nrs_tbf_client objects.
*/
-#define NRS_TBF_NID_BKT_BITS 8
-#define NRS_TBF_NID_BITS 16
+#define NRS_TBF_NID_BKT_BITS 8
+#define NRS_TBF_NID_BITS 16
static unsigned nrs_tbf_nid_hop_hash(struct cfs_hash *hs, const void *key,
unsigned mask)
.o_rule_fini = nrs_tbf_nid_rule_fini,
};
+static void nrs_tbf_opcode_rule_fini(struct nrs_tbf_rule *rule)
+{
+ if (rule->tr_opcodes != NULL)
+ CFS_FREE_BITMAP(rule->tr_opcodes);
+
+ LASSERT(rule->tr_opcodes_str != NULL);
+ OBD_FREE(rule->tr_opcodes_str, strlen(rule->tr_opcodes_str) + 1);
+}
+
+static unsigned nrs_tbf_opcode_hop_hash(struct cfs_hash *hs, const void *key,
+ unsigned mask)
+{
+ return cfs_hash_djb2_hash(key, sizeof(__u32), mask);
+}
+
+static int nrs_tbf_opcode_hop_keycmp(const void *key, struct hlist_node *hnode)
+{
+ const __u32 *opc = key;
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
+ struct nrs_tbf_client,
+ tc_hnode);
+
+ return *opc == cli->tc_opcode;
+}
+
+static void *nrs_tbf_opcode_hop_key(struct hlist_node *hnode)
+{
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
+ struct nrs_tbf_client,
+ tc_hnode);
+
+ return &cli->tc_opcode;
+}
+
+static void *nrs_tbf_opcode_hop_object(struct hlist_node *hnode)
+{
+ return hlist_entry(hnode, struct nrs_tbf_client, tc_hnode);
+}
+
+static void nrs_tbf_opcode_hop_get(struct cfs_hash *hs,
+ struct hlist_node *hnode)
+{
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
+ struct nrs_tbf_client,
+ tc_hnode);
+
+ atomic_inc(&cli->tc_ref);
+}
+
+static void nrs_tbf_opcode_hop_put(struct cfs_hash *hs,
+ struct hlist_node *hnode)
+{
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
+ struct nrs_tbf_client,
+ tc_hnode);
+
+ atomic_dec(&cli->tc_ref);
+}
+
+static void nrs_tbf_opcode_hop_exit(struct cfs_hash *hs,
+ struct hlist_node *hnode)
+{
+ struct nrs_tbf_client *cli = hlist_entry(hnode,
+ struct nrs_tbf_client,
+ tc_hnode);
+
+ LASSERTF(atomic_read(&cli->tc_ref) == 0,
+ "Busy TBF object from client with opcode %s, with %d refs\n",
+ ll_opcode2str(cli->tc_opcode),
+ atomic_read(&cli->tc_ref));
+
+ nrs_tbf_cli_fini(cli);
+}
+static struct cfs_hash_ops nrs_tbf_opcode_hash_ops = {
+ .hs_hash = nrs_tbf_opcode_hop_hash,
+ .hs_keycmp = nrs_tbf_opcode_hop_keycmp,
+ .hs_key = nrs_tbf_opcode_hop_key,
+ .hs_object = nrs_tbf_opcode_hop_object,
+ .hs_get = nrs_tbf_opcode_hop_get,
+ .hs_put = nrs_tbf_opcode_hop_put,
+ .hs_put_locked = nrs_tbf_opcode_hop_put,
+ .hs_exit = nrs_tbf_opcode_hop_exit,
+};
+
+static int
+nrs_tbf_opcode_startup(struct ptlrpc_nrs_policy *policy,
+ struct nrs_tbf_head *head)
+{
+ struct nrs_tbf_cmd start = { 0 };
+ int rc;
+
+ head->th_cli_hash = cfs_hash_create("nrs_tbf_hash",
+ NRS_TBF_NID_BITS,
+ NRS_TBF_NID_BITS,
+ NRS_TBF_NID_BKT_BITS, 0,
+ CFS_HASH_MIN_THETA,
+ CFS_HASH_MAX_THETA,
+ &nrs_tbf_opcode_hash_ops,
+ CFS_HASH_RW_BKTLOCK);
+ if (head->th_cli_hash == NULL)
+ return -ENOMEM;
+
+ start.u.tc_start.ts_opcodes = NULL;
+ start.u.tc_start.ts_opcodes_str = "*";
+
+ start.u.tc_start.ts_rpc_rate = tbf_rate;
+ start.u.tc_start.ts_rule_flags = NTRS_DEFAULT;
+ start.tc_name = NRS_TBF_DEFAULT_RULE;
+ rc = nrs_tbf_rule_start(policy, head, &start);
+
+ return rc;
+}
+
+static struct nrs_tbf_client *
+nrs_tbf_opcode_cli_find(struct nrs_tbf_head *head,
+ struct ptlrpc_request *req)
+{
+ __u32 opc;
+
+ opc = lustre_msg_get_opc(req->rq_reqmsg);
+ return cfs_hash_lookup(head->th_cli_hash, &opc);
+}
+
+static struct nrs_tbf_client *
+nrs_tbf_opcode_cli_findadd(struct nrs_tbf_head *head,
+ struct nrs_tbf_client *cli)
+{
+ return cfs_hash_findadd_unique(head->th_cli_hash, &cli->tc_opcode,
+ &cli->tc_hnode);
+}
+
+static void
+nrs_tbf_opcode_cli_init(struct nrs_tbf_client *cli,
+ struct ptlrpc_request *req)
+{
+ cli->tc_opcode = lustre_msg_get_opc(req->rq_reqmsg);
+}
+
+#define MAX_OPCODE_LEN 32
+static int
+nrs_tbf_opcode_set_bit(const struct cfs_lstr *id, struct cfs_bitmap *opcodes)
+{
+ int op = 0;
+ char opcode_str[MAX_OPCODE_LEN];
+
+ if (id->ls_len + 1 > MAX_OPCODE_LEN)
+ return -EINVAL;
+
+ memcpy(opcode_str, id->ls_str, id->ls_len);
+ opcode_str[id->ls_len] = '\0';
+
+ op = ll_str2opcode(opcode_str);
+ if (op < 0)
+ return -EINVAL;
+
+ cfs_bitmap_set(opcodes, op);
+ return 0;
+}
+
+static int
+nrs_tbf_opcode_list_parse(char *str, int len, struct cfs_bitmap *opcodes)
+{
+ struct cfs_lstr src;
+ struct cfs_lstr res;
+ int rc = 0;
+
+ ENTRY;
+
+ src.ls_str = str;
+ src.ls_len = len;
+ while (src.ls_str) {
+ rc = cfs_gettok(&src, ' ', &res);
+ if (rc == 0) {
+ rc = -EINVAL;
+ break;
+ }
+ rc = nrs_tbf_opcode_set_bit(&res, opcodes);
+ if (rc)
+ break;
+ }
+
+ RETURN(rc);
+}
+
+static void nrs_tbf_opcode_cmd_fini(struct nrs_tbf_cmd *cmd)
+{
+ if (cmd->u.tc_start.ts_opcodes)
+ CFS_FREE_BITMAP(cmd->u.tc_start.ts_opcodes);
+
+ if (cmd->u.tc_start.ts_opcodes_str)
+ OBD_FREE(cmd->u.tc_start.ts_opcodes_str,
+ strlen(cmd->u.tc_start.ts_opcodes_str) + 1);
+
+}
+
+static int nrs_tbf_opcode_parse(struct nrs_tbf_cmd *cmd, char *id)
+{
+ struct cfs_lstr src;
+ int rc;
+
+ cmd->u.tc_start.ts_opcodes = CFS_ALLOCATE_BITMAP(LUSTRE_MAX_OPCODES);
+ if (cmd->u.tc_start.ts_opcodes == NULL)
+ return -ENOMEM;
+
+ src.ls_str = id;
+ src.ls_len = strlen(id);
+ rc = nrs_tbf_check_id_value(&src, "opcode");
+ if (rc)
+ GOTO(out, rc);
+
+ OBD_ALLOC(cmd->u.tc_start.ts_opcodes_str, src.ls_len + 1);
+ if (cmd->u.tc_start.ts_opcodes_str == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ memcpy(cmd->u.tc_start.ts_opcodes_str, src.ls_str, src.ls_len);
+
+ /* parse opcode list */
+ rc = nrs_tbf_opcode_list_parse(cmd->u.tc_start.ts_opcodes_str,
+ strlen(cmd->u.tc_start.ts_opcodes_str),
+ cmd->u.tc_start.ts_opcodes);
+out:
+ if (rc != 0)
+ nrs_tbf_opcode_cmd_fini(cmd);
+
+ return rc;
+}
+
+static int
+nrs_tbf_opcode_rule_match(struct nrs_tbf_rule *rule,
+ struct nrs_tbf_client *cli)
+{
+ if (rule->tr_opcodes == NULL)
+ return 0;
+
+ return cfs_bitmap_check(rule->tr_opcodes, cli->tc_opcode);
+}
+
+static int nrs_tbf_opcode_rule_init(struct ptlrpc_nrs_policy *policy,
+ struct nrs_tbf_rule *rule,
+ struct nrs_tbf_cmd *start)
+{
+ LASSERT(start->u.tc_start.ts_opcodes_str != NULL);
+ OBD_ALLOC(rule->tr_opcodes_str,
+ strlen(start->u.tc_start.ts_opcodes_str) + 1);
+ if (rule->tr_opcodes_str == NULL)
+ return -ENOMEM;
+
+ strncpy(rule->tr_opcodes_str, start->u.tc_start.ts_opcodes_str,
+ strlen(start->u.tc_start.ts_opcodes_str) + 1);
+
+ if (start->u.tc_start.ts_opcodes == NULL)
+ return 0;
+
+ rule->tr_opcodes = CFS_ALLOCATE_BITMAP(LUSTRE_MAX_OPCODES);
+ if (rule->tr_opcodes == NULL) {
+ OBD_FREE(rule->tr_opcodes_str,
+ strlen(start->u.tc_start.ts_opcodes_str) + 1);
+ return -ENOMEM;
+ }
+
+ cfs_bitmap_copy(rule->tr_opcodes, start->u.tc_start.ts_opcodes);
+
+ return 0;
+}
+
+static int
+nrs_tbf_opcode_rule_dump(struct nrs_tbf_rule *rule, struct seq_file *m)
+{
+ seq_printf(m, "%s {%s} %llu, ref %d\n", rule->tr_name,
+ rule->tr_opcodes_str, rule->tr_rpc_rate,
+ atomic_read(&rule->tr_ref) - 1);
+ return 0;
+}
+
+
+struct nrs_tbf_ops nrs_tbf_opcode_ops = {
+ .o_name = NRS_TBF_TYPE_OPCODE,
+ .o_startup = nrs_tbf_opcode_startup,
+ .o_cli_find = nrs_tbf_opcode_cli_find,
+ .o_cli_findadd = nrs_tbf_opcode_cli_findadd,
+ .o_cli_put = nrs_tbf_nid_cli_put,
+ .o_cli_init = nrs_tbf_opcode_cli_init,
+ .o_rule_init = nrs_tbf_opcode_rule_init,
+ .o_rule_dump = nrs_tbf_opcode_rule_dump,
+ .o_rule_match = nrs_tbf_opcode_rule_match,
+ .o_rule_fini = nrs_tbf_opcode_rule_fini,
+};
+
+static struct nrs_tbf_type nrs_tbf_types[] = {
+ {
+ .ntt_name = NRS_TBF_TYPE_JOBID,
+ .ntt_flag = NRS_TBF_FLAG_JOBID,
+ .ntt_ops = &nrs_tbf_jobid_ops,
+ },
+ {
+ .ntt_name = NRS_TBF_TYPE_NID,
+ .ntt_flag = NRS_TBF_FLAG_NID,
+ .ntt_ops = &nrs_tbf_nid_ops,
+ },
+ {
+ .ntt_name = NRS_TBF_TYPE_OPCODE,
+ .ntt_flag = NRS_TBF_FLAG_OPCODE,
+ .ntt_ops = &nrs_tbf_opcode_ops,
+ },
+};
+
/**
* Is called before the policy transitions into
* ptlrpc_nrs_pol_state::NRS_POL_STATE_STARTED; allocates and initializes a
struct nrs_tbf_head *head;
struct nrs_tbf_ops *ops;
__u32 type;
+ int found = 0;
+ int i;
int rc = 0;
if (arg == NULL || strlen(arg) > NRS_TBF_TYPE_MAX_LEN)
GOTO(out, rc = -EINVAL);
- if (strcmp(arg, NRS_TBF_TYPE_NID) == 0) {
- ops = &nrs_tbf_nid_ops;
- type = NRS_TBF_FLAG_NID;
- } else if (strcmp(arg, NRS_TBF_TYPE_JOBID) == 0) {
- ops = &nrs_tbf_jobid_ops;
- type = NRS_TBF_FLAG_JOBID;
- } else
+ for (i = 0; i < ARRAY_SIZE(nrs_tbf_types); i++) {
+ if (strcmp(arg, nrs_tbf_types[i].ntt_name) == 0) {
+ ops = nrs_tbf_types[i].ntt_ops;
+ type = nrs_tbf_types[i].ntt_flag;
+ found = 1;
+ break;
+ }
+ }
+ if (found == 0)
GOTO(out, rc = -ENOTSUPP);
OBD_CPT_ALLOC_PTR(head, nrs_pol2cptab(policy), nrs_pol2cptid(policy));
sizeof(*cli), moving_req ? GFP_ATOMIC : __GFP_IO);
if (cli == NULL)
return -ENOMEM;
+
nrs_tbf_cli_init(head, cli, req);
tmp = head->th_ops->o_cli_findadd(head, cli);
if (tmp != cli) {
{
int rc;
- if (cmd->u.tc_start.ts_valid_type & NRS_TBF_FLAG_JOBID)
+ switch (cmd->u.tc_start.ts_valid_type) {
+ case NRS_TBF_FLAG_JOBID:
rc = nrs_tbf_jobid_parse(cmd, token);
- else if (cmd->u.tc_start.ts_valid_type & NRS_TBF_FLAG_NID)
+ break;
+ case NRS_TBF_FLAG_NID:
rc = nrs_tbf_nid_parse(cmd, token);
- else if (cmd->u.tc_start.ts_valid_type == NRS_TBF_FLAG_INVALID)
- rc = -EINVAL;
- else
- rc = 0;
+ break;
+ case NRS_TBF_FLAG_OPCODE:
+ rc = nrs_tbf_opcode_parse(cmd, token);
+ break;
+ default:
+ RETURN(-EINVAL);
+ }
return rc;
}
-
static void nrs_tbf_cmd_fini(struct nrs_tbf_cmd *cmd)
{
if (cmd->tc_cmd == NRS_CTL_TBF_START_RULE) {
- if (cmd->u.tc_start.ts_valid_type & NRS_TBF_FLAG_JOBID)
+ if (cmd->u.tc_start.ts_valid_type == NRS_TBF_FLAG_JOBID)
nrs_tbf_jobid_cmd_fini(cmd);
- else if (cmd->u.tc_start.ts_valid_type & NRS_TBF_FLAG_NID)
+ else if (cmd->u.tc_start.ts_valid_type == NRS_TBF_FLAG_NID)
nrs_tbf_nid_cmd_fini(cmd);
+ else if (cmd->u.tc_start.ts_valid_type == NRS_TBF_FLAG_OPCODE)
+ nrs_tbf_opcode_cmd_fini(cmd);
}
}
git://git.whamcloud.com / fs / lustre-release.git / commitdiff