#define DEBUG_SUBSYSTEM S_FILTER
#include "ofd_internal.h"
+#include <obd_cksum.h>
+
+static int ofd_parse_connect_data(const struct lu_env *env,
+ struct obd_export *exp,
+ struct obd_connect_data *data)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+
+ if (!data)
+ RETURN(0);
+
+ CDEBUG(D_RPCTRACE, "%s: cli %s/%p ocd_connect_flags: "LPX64
+ " ocd_version: %x ocd_grant: %d ocd_index: %u\n",
+ exp->exp_obd->obd_name, exp->exp_client_uuid.uuid, exp,
+ data->ocd_connect_flags, data->ocd_version,
+ data->ocd_grant, data->ocd_index);
+
+ data->ocd_connect_flags &= OST_CONNECT_SUPPORTED;
+ exp->exp_connect_flags = data->ocd_connect_flags;
+ data->ocd_version = LUSTRE_VERSION_CODE;
+
+ /* Kindly make sure the SKIP_ORPHAN flag is from MDS. */
+ if (data->ocd_connect_flags & OBD_CONNECT_MDS)
+ CDEBUG(D_HA, "%s: Received MDS connection for group %u\n",
+ exp->exp_obd->obd_name, data->ocd_group);
+ else if (data->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN)
+ RETURN(-EPROTO);
+
+ if (data->ocd_connect_flags & OBD_CONNECT_INDEX) {
+ struct lr_server_data *lsd = &ofd->ofd_lut.lut_lsd;
+ int index = lsd->lsd_ost_index;
+
+ if (!(lsd->lsd_feature_compat & OBD_COMPAT_OST)) {
+ /* this will only happen on the first connect */
+ lsd->lsd_ost_index = data->ocd_index;
+ lsd->lsd_feature_compat |= OBD_COMPAT_OST;
+ /* sync is not needed here as lut_client_add will
+ * set exp_need_sync flag */
+ lut_server_data_update(env, &ofd->ofd_lut, 0);
+ } else if (index != data->ocd_index) {
+ LCONSOLE_ERROR_MSG(0x136, "Connection from %s to index"
+ " %u doesn't match actual OST index"
+ " %u in last_rcvd file, bad "
+ "configuration?\n",
+ obd_export_nid2str(exp), index,
+ data->ocd_index);
+ RETURN(-EBADF);
+ }
+ }
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_SIZE)) {
+ data->ocd_brw_size = 65536;
+ } else if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) {
+ data->ocd_brw_size = min(data->ocd_brw_size,
+ (__u32)(PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT));
+ if (data->ocd_brw_size == 0) {
+ CERROR("%s: cli %s/%p ocd_connect_flags: "LPX64
+ " ocd_version: %x ocd_grant: %d ocd_index: %u "
+ "ocd_brw_size is unexpectedly zero, "
+ "network data corruption?"
+ "Refusing connection of this client\n",
+ exp->exp_obd->obd_name,
+ exp->exp_client_uuid.uuid,
+ exp, data->ocd_connect_flags, data->ocd_version,
+ data->ocd_grant, data->ocd_index);
+ RETURN(-EPROTO);
+ }
+ }
+
+ if (data->ocd_connect_flags & OBD_CONNECT_CKSUM) {
+ __u32 cksum_types = data->ocd_cksum_types;
+
+ /* The client set in ocd_cksum_types the checksum types it
+ * supports. We have to mask off the algorithms that we don't
+ * support */
+ data->ocd_cksum_types &= cksum_types_supported();
+
+ if (unlikely(data->ocd_cksum_types == 0)) {
+ CERROR("%s: Connect with checksum support but no "
+ "ocd_cksum_types is set\n",
+ exp->exp_obd->obd_name);
+ RETURN(-EPROTO);
+ }
+
+ CDEBUG(D_RPCTRACE, "%s: cli %s supports cksum type %x, return "
+ "%x\n", exp->exp_obd->obd_name, obd_export_nid2str(exp),
+ cksum_types, data->ocd_cksum_types);
+ } else {
+ /* This client does not support OBD_CONNECT_CKSUM
+ * fall back to CRC32 */
+ CDEBUG(D_RPCTRACE, "%s: cli %s does not support "
+ "OBD_CONNECT_CKSUM, CRC32 will be used\n",
+ exp->exp_obd->obd_name, obd_export_nid2str(exp));
+ }
+
+ if (data->ocd_connect_flags & OBD_CONNECT_MAXBYTES)
+ data->ocd_maxbytes = ofd->ofd_dt_conf.ddp_maxbytes;
+
+ RETURN(0);
+}
+
+static int ofd_obd_reconnect(const struct lu_env *env, struct obd_export *exp,
+ struct obd_device *obd, struct obd_uuid *cluuid,
+ struct obd_connect_data *data, void *localdata)
+{
+ int rc;
+
+ ENTRY;
+
+ if (exp == NULL || obd == NULL || cluuid == NULL)
+ RETURN(-EINVAL);
+
+ rc = lu_env_refill((struct lu_env *)env);
+ if (rc != 0) {
+ CERROR("Failure to refill session: '%d'\n", rc);
+ RETURN(rc);
+ }
+
+ ofd_info_init(env, exp);
+ rc = ofd_parse_connect_data(env, exp, data);
+
+ RETURN(rc);
+}
+
+static int ofd_obd_connect(const struct lu_env *env, struct obd_export **_exp,
+ struct obd_device *obd, struct obd_uuid *cluuid,
+ struct obd_connect_data *data, void *localdata)
+{
+ struct obd_export *exp;
+ struct ofd_device *ofd;
+ struct lustre_handle conn = { 0 };
+ int rc, group;
+
+ ENTRY;
+
+ if (_exp == NULL || obd == NULL || cluuid == NULL)
+ RETURN(-EINVAL);
+
+ ofd = ofd_dev(obd->obd_lu_dev);
+
+ rc = class_connect(&conn, obd, cluuid);
+ if (rc)
+ RETURN(rc);
+
+ exp = class_conn2export(&conn);
+ LASSERT(exp != NULL);
+
+ rc = lu_env_refill((struct lu_env *)env);
+ if (rc != 0) {
+ CERROR("Failure to refill session: '%d'\n", rc);
+ GOTO(out, rc);
+ }
+
+ ofd_info_init(env, exp);
+
+ rc = ofd_parse_connect_data(env, exp, data);
+ if (rc)
+ GOTO(out, rc);
+
+ ofd_export_stats_init(ofd, exp, localdata);
+ group = data->ocd_group;
+ if (obd->obd_replayable) {
+ struct tg_export_data *ted = &exp->exp_target_data;
+
+ memcpy(ted->ted_lcd->lcd_uuid, cluuid,
+ sizeof(ted->ted_lcd->lcd_uuid));
+ rc = lut_client_new(env, exp);
+ if (rc != 0)
+ GOTO(out, rc);
+ }
+ if (group == 0)
+ GOTO(out, rc = 0);
+
+ /* init new group */
+ if (group > ofd->ofd_max_group) {
+ ofd->ofd_max_group = group;
+ rc = ofd_group_load(env, ofd, group);
+ }
+out:
+ if (rc != 0) {
+ class_disconnect(exp);
+ *_exp = NULL;
+ } else {
+ *_exp = exp;
+ }
+ RETURN(rc);
+}
+
+static int ofd_obd_disconnect(struct obd_export *exp)
+{
+ struct lu_env env;
+ int rc;
+
+ ENTRY;
+
+ LASSERT(exp);
+ class_export_get(exp);
+
+ rc = server_disconnect_export(exp);
+
+ rc = lu_env_init(&env, LCT_DT_THREAD);
+ if (rc)
+ RETURN(rc);
+
+ /* Do not erase record for recoverable client. */
+ if (exp->exp_obd->obd_replayable &&
+ (!exp->exp_obd->obd_fail || exp->exp_failed))
+ lut_client_del(&env, exp);
+ lu_env_fini(&env);
+
+ class_export_put(exp);
+ RETURN(rc);
+}
+
+static int ofd_init_export(struct obd_export *exp)
+{
+ int rc;
+
+ cfs_spin_lock_init(&exp->exp_filter_data.fed_lock);
+ CFS_INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list);
+ cfs_spin_lock(&exp->exp_lock);
+ exp->exp_connecting = 1;
+ cfs_spin_unlock(&exp->exp_lock);
+
+ /* self-export doesn't need client data and ldlm initialization */
+ if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
+ &exp->exp_client_uuid)))
+ return 0;
+
+ rc = lut_client_alloc(exp);
+ if (rc == 0)
+ ldlm_init_export(exp);
+ if (rc)
+ CERROR("%s: Can't initialize export: rc %d\n",
+ exp->exp_obd->obd_name, rc);
+ return rc;
+}
+
+static int ofd_destroy_export(struct obd_export *exp)
+{
+ if (exp->exp_filter_data.fed_pending)
+ CERROR("%s: cli %s/%p has %lu pending on destroyed export"
+ "\n", exp->exp_obd->obd_name, exp->exp_client_uuid.uuid,
+ exp, exp->exp_filter_data.fed_pending);
+
+ target_destroy_export(exp);
+
+ if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid,
+ &exp->exp_client_uuid)))
+ return 0;
+
+ ldlm_destroy_export(exp);
+ lut_client_free(exp);
+
+ LASSERT(cfs_list_empty(&exp->exp_filter_data.fed_mod_list));
+ return 0;
+}
+
+int ofd_obd_postrecov(struct obd_device *obd)
+{
+ struct lu_env env;
+ struct lu_device *ldev = obd->obd_lu_dev;
+ int rc;
+
+ ENTRY;
+
+ rc = lu_env_init(&env, LCT_DT_THREAD);
+ if (rc)
+ RETURN(rc);
+ ofd_info_init(&env, obd->obd_self_export);
+
+ rc = ldev->ld_ops->ldo_recovery_complete(&env, ldev);
+ lu_env_fini(&env);
+ RETURN(rc);
+}
static int ofd_obd_notify(struct obd_device *obd, struct obd_device *unused,
enum obd_notify_event ev, void *data)
}
struct obd_ops ofd_obd_ops = {
- .o_owner = THIS_MODULE,
- .o_notify = ofd_obd_notify,
+ .o_owner = THIS_MODULE,
+ .o_connect = ofd_obd_connect,
+ .o_reconnect = ofd_obd_reconnect,
+ .o_disconnect = ofd_obd_disconnect,
+ .o_init_export = ofd_init_export,
+ .o_destroy_export = ofd_destroy_export,
+ .o_postrecov = ofd_obd_postrecov,
+ .o_notify = ofd_obd_notify,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff