Thanks Darrell, I will apply your suggetions. -Antonio
> -----Original Message----- > From: Darrell Ball [mailto:[email protected]] > Sent: Sunday, July 23, 2017 6:28 PM > To: Fischetti, Antonio <[email protected]>; [email protected] > Subject: Re: [ovs-dev] [PATCH v4] dpctl: Add new 'ct-bkts' command. > > Minor comment: > > When applying the patch, there is a complaint about new whitespace below [Antonio] will remove it. > > +the number of connections in a bucket is greater than \fIThreshold\fR. > + > > Two comments inline > > > -----Original Message----- > From: <[email protected]> on behalf of > "[email protected]" <[email protected]> > Date: Saturday, July 22, 2017 at 7:38 AM > To: "[email protected]" <[email protected]> > Subject: [ovs-dev] [PATCH v4] dpctl: Add new 'ct-bkts' command. > > With the command: > ovs-appctl dpctl/ct-bkts > shows the number of connections per bucket. > > By using a threshold: > ovs-appctl dpctl/ct-bkts gt=N > for each bucket shows the number of connections when they > are greater than N. > > Signed-off-by: Antonio Fischetti <[email protected]> > Signed-off-by: Bhanuprakash Bodireddy > <[email protected]> > Co-authored-by: Bhanuprakash Bodireddy > <[email protected]> > --- > lib/conntrack.c | 9 ++-- > lib/conntrack.h | 2 +- > lib/ct-dpif.c | 4 +- > lib/ct-dpif.h | 3 +- > lib/dpctl.c | 108 > ++++++++++++++++++++++++++++++++++++++++- > lib/dpctl.man | 8 +++ > lib/dpif-netdev.c | 4 +- > lib/dpif-netlink.c | 4 +- > lib/dpif-provider.h | 2 +- > lib/netlink-conntrack.c | 6 ++- > lib/netlink-conntrack.h | 3 +- > tests/test-netlink-conntrack.c | 3 +- > utilities/ovs-dpctl.c | 1 + > 13 files changed, 140 insertions(+), 17 deletions(-) > > diff --git a/lib/conntrack.c b/lib/conntrack.c > index de46a6b..e290b20 100644 > --- a/lib/conntrack.c > +++ b/lib/conntrack.c > @@ -1931,7 +1931,7 @@ conn_key_to_tuple(const struct conn_key *key, > struct ct_dpif_tuple *tuple) > > static void > conn_to_ct_dpif_entry(const struct conn *conn, struct ct_dpif_entry > *entry, > - long long now) > + long long now, int bkt) > { > struct ct_l4_proto *class; > long long expiration; > @@ -1954,11 +1954,12 @@ conn_to_ct_dpif_entry(const struct conn *conn, > struct ct_dpif_entry *entry, > if (class->conn_get_protoinfo) { > class->conn_get_protoinfo(conn, &entry->protoinfo); > } > + entry->bkt = bkt; > } > > int > conntrack_dump_start(struct conntrack *ct, struct conntrack_dump > *dump, > - const uint16_t *pzone) > + const uint16_t *pzone, int *ptot_bkts) > { > memset(dump, 0, sizeof(*dump)); > if (pzone) { > @@ -1967,6 +1968,8 @@ conntrack_dump_start(struct conntrack *ct, > struct conntrack_dump *dump, > } > dump->ct = ct; > > + *ptot_bkts = CONNTRACK_BUCKETS; > + > return 0; > } > > @@ -1991,7 +1994,7 @@ conntrack_dump_next(struct conntrack_dump *dump, > struct ct_dpif_entry *entry) > INIT_CONTAINER(conn, node, node); > if ((!dump->filter_zone || conn->key.zone == dump->zone) > && > (conn->conn_type != CT_CONN_TYPE_UN_NAT)) { > - conn_to_ct_dpif_entry(conn, entry, now); > + conn_to_ct_dpif_entry(conn, entry, now, dump- > >bucket); > break; > } > /* Else continue, until we find an entry in the > appropriate zone > diff --git a/lib/conntrack.h b/lib/conntrack.h > index defde4c..3f48444 100644 > --- a/lib/conntrack.h > +++ b/lib/conntrack.h > @@ -108,7 +108,7 @@ struct conntrack_dump { > struct ct_dpif_entry; > > int conntrack_dump_start(struct conntrack *, struct conntrack_dump *, > - const uint16_t *pzone); > + const uint16_t *pzone, int *); > int conntrack_dump_next(struct conntrack_dump *, struct ct_dpif_entry > *); > int conntrack_dump_done(struct conntrack_dump *); > > diff --git a/lib/ct-dpif.c b/lib/ct-dpif.c > index f8d2cf1..c79e69e 100644 > --- a/lib/ct-dpif.c > +++ b/lib/ct-dpif.c > @@ -65,12 +65,12 @@ static const struct flags ct_dpif_status_flags[] = > { > * that represents the error. Otherwise it returns zero. */ > int > ct_dpif_dump_start(struct dpif *dpif, struct ct_dpif_dump_state > **dump, > - const uint16_t *zone) > + const uint16_t *zone, int *ptot_bkts) > { > int err; > > err = (dpif->dpif_class->ct_dump_start > - ? dpif->dpif_class->ct_dump_start(dpif, dump, zone) > + ? dpif->dpif_class->ct_dump_start(dpif, dump, zone, > ptot_bkts) > : EOPNOTSUPP); > > if (!err) { > diff --git a/lib/ct-dpif.h b/lib/ct-dpif.h > index cd35f3e..d5f9661 100644 > --- a/lib/ct-dpif.h > +++ b/lib/ct-dpif.h > @@ -169,6 +169,7 @@ struct ct_dpif_entry { > /* Timeout for this entry in seconds */ > uint32_t timeout; > uint32_t mark; > + uint32_t bkt; /* CT bucket number. */ > }; > > enum { > @@ -191,7 +192,7 @@ struct ct_dpif_dump_state { > }; > > int ct_dpif_dump_start(struct dpif *, struct ct_dpif_dump_state **, > - const uint16_t *zone); > + const uint16_t *zone, int *); > int ct_dpif_dump_next(struct ct_dpif_dump_state *, struct > ct_dpif_entry *); > int ct_dpif_dump_done(struct ct_dpif_dump_state *); > int ct_dpif_flush(struct dpif *, const uint16_t *zone); > diff --git a/lib/dpctl.c b/lib/dpctl.c > index 6aa6c8e..3ccc7a3 100644 > --- a/lib/dpctl.c > +++ b/lib/dpctl.c > @@ -1258,6 +1258,7 @@ dpctl_dump_conntrack(int argc, const char > *argv[], > struct ct_dpif_dump_state *dump; > struct ct_dpif_entry cte; > uint16_t zone, *pzone = NULL; > + int tot_bkts; > struct dpif *dpif; > char *name; > int error; > @@ -1277,7 +1278,7 @@ dpctl_dump_conntrack(int argc, const char > *argv[], > return error; > } > > - error = ct_dpif_dump_start(dpif, &dump, pzone); > + error = ct_dpif_dump_start(dpif, &dump, pzone, &tot_bkts); > if (error) { > dpctl_error(dpctl_p, error, "starting conntrack dump"); > dpif_close(dpif); > @@ -1339,6 +1340,7 @@ dpctl_ct_stats_show(int argc, const char > *argv[], > struct ct_dpif_dump_state *dump; > struct ct_dpif_entry cte; > uint16_t zone, *pzone = NULL; > + int tot_bkts; > bool verbose = false; > int lastargc = 0; > > @@ -1373,7 +1375,7 @@ dpctl_ct_stats_show(int argc, const char > *argv[], > > memset(proto_stats, 0, sizeof(proto_stats)); > memset(tcp_conn_per_states, 0, sizeof(tcp_conn_per_states)); > - error = ct_dpif_dump_start(dpif, &dump, pzone); > + error = ct_dpif_dump_start(dpif, &dump, pzone, &tot_bkts); > if (error) { > dpctl_error(dpctl_p, error, "starting conntrack dump"); > dpif_close(dpif); > @@ -1464,6 +1466,107 @@ dpctl_ct_stats_show(int argc, const char > *argv[], > dpif_close(dpif); > return error; > } > + > +#define CT_BKTS_GT "gt=" > +static int > +dpctl_ct_bkts(int argc, const char *argv[], > + struct dpctl_params *dpctl_p) > +{ > + struct dpif *dpif; > + char *name; > + > + struct ct_dpif_dump_state *dump; > + struct ct_dpif_entry cte; > + uint16_t gt = 0; /* Threshold: display value when greater than > gt. */ > + uint16_t *pzone = NULL; > + int tot_bkts = 0; > + int lastargc = 0; > + > + int error; > + > + while (argc > 1 && lastargc != argc) { > + lastargc = argc; > + if (!strncmp(argv[argc - 1], CT_BKTS_GT, strlen(CT_BKTS_GT))) > { > + if (ovs_scan(argv[argc - 1], CT_BKTS_GT"%"SCNu16, >)) { > + argc--; > + break; > + } > + } > + } > > [Darrell] > When, I do this, I get a failure, which is expected. > > > 2017-07-23T02:28:02.155Z|00052|connmgr|INFO|br0<->unix: 11 flow_mods in > the last 0 s (11 adds) > > 2017-07-23T02:28:02.346Z|00053|unixctl|DBG|received request dpctl/ct- > bkts["gt=0","netdev@ovs-netdev"], id=0 > > 2017-07-23T02:28:02.346Z|00054|dpctl|INFO|set_names=0 verbosity=0 > names=0 > > 2017-07-23T02:28:02.346Z|00057|dpif|WARN|could not create datapath gt=0 > of unknown type system > > 2017-07-23T02:28:02.347Z|00058|unixctl|DBG|replying with error, id=0: > "ovs-vswitchd: opening datapath (Address family not supported by protocol) > > But, your command requires a maximum of 2 parameters and if there are 2, > the datapath name must be first and ‘gt=x’ second > Hence, I think you can just remove the while loop completely since ‘gt=x’ > must always be last, if present. > > diff --git a/lib/dpctl.c b/lib/dpctl.c > index cb791ca..5f3801c 100644 > --- a/lib/dpctl.c > +++ b/lib/dpctl.c > @@ -1480,17 +1480,11 @@ dpctl_ct_bkts(int argc, const char *argv[], > uint16_t gt = 0; /* Threshold: display value when greater than gt. */ > uint16_t *pzone = NULL; > int tot_bkts = 0; > - int lastargc = 0; > - > int error; > > - while (argc > 1 && lastargc != argc) { > - lastargc = argc; > - if (!strncmp(argv[argc - 1], CT_BKTS_GT, strlen(CT_BKTS_GT))) { > - if (ovs_scan(argv[argc - 1], CT_BKTS_GT"%"SCNu16, >)) { > - argc--; > - break; > - } > + if (argc > 1 && !strncmp(argv[argc - 1], CT_BKTS_GT, > strlen(CT_BKTS_GT))) { > + if (ovs_scan(argv[argc - 1], CT_BKTS_GT"%"SCNu16, >)) { > + argc--; > } > } [Antonio] ok will change it > > ////////////////////////////// > > + > + name = (argc > 1) ? xstrdup(argv[1]) : get_one_dp(dpctl_p); > + if (!name) { > + return EINVAL; > + } > + > + error = parsed_dpif_open(name, false, &dpif); > + free(name); > + if (error) { > + dpctl_error(dpctl_p, error, "opening datapath"); > + return error; > + } > + > + error = ct_dpif_dump_start(dpif, &dump, pzone, &tot_bkts); > + if (error) { > + dpctl_error(dpctl_p, error, "starting conntrack dump"); > + dpif_close(dpif); > + return error; > + } > + if (tot_bkts == -1) { > + /* Command not available when called by kernel OvS. */ > + dpctl_print(dpctl_p, > + "Command is available for UserSpace ConnTracker > only.\n"); > + ct_dpif_dump_done(dump); > > [Darrell] > dpctl_print(dpctl_p, > "Command is available for UserSpace ConnTracker only.\n"); > ct_dpif_dump_done(dump); > + dpif_close(dpif); > return 0; > } > > ////////////////////////////// > > > + return 0; > + } > + > + dpctl_print(dpctl_p, "Total Buckets: %d\n", tot_bkts); > + > + int tot_conn = 0; > + uint32_t conn_per_bkts[tot_bkts]; > + memset(conn_per_bkts, 0, sizeof(uint32_t) * tot_bkts); > + > + while (!ct_dpif_dump_next(dump, &cte)) { > + ct_dpif_entry_uninit(&cte); > + tot_conn++; > + if (tot_bkts > 0) { > + if (cte.bkt < tot_bkts) { > + conn_per_bkts[cte.bkt]++; > + } else { > + dpctl_print(dpctl_p, "Bucket nr out of range: %d >= > %d\n", > + cte.bkt, tot_bkts); > + } > + } > + } > + > + dpctl_print(dpctl_p, "Current Connections: %d\n", tot_conn); > + dpctl_print(dpctl_p, "\n"); > + if (tot_bkts && tot_conn) { > + dpctl_print(dpctl_p, "+-----------+" > + "-----------------------------------------+\n"); > + dpctl_print(dpctl_p, "| Buckets |" > + " Connections per Buckets |\n"); > + dpctl_print(dpctl_p, "+-----------+" > + "-----------------------------------------+"); > +#define NUM_BKTS_DIPLAYED_PER_ROW 8 > + for (int i = 0; i < tot_bkts; i++) { > + if (i % NUM_BKTS_DIPLAYED_PER_ROW == 0) { > + dpctl_print(dpctl_p, "\n %3d..%3d | ", > + i, i + NUM_BKTS_DIPLAYED_PER_ROW - 1); > + } > + if (conn_per_bkts[i] > gt) { > + dpctl_print(dpctl_p, "%5d", conn_per_bkts[i]); > + } else { > + dpctl_print(dpctl_p, "%5s", "."); > + } > + } > + dpctl_print(dpctl_p, "\n\n"); > + } > + > + ct_dpif_dump_done(dump); > + dpif_close(dpif); > + return error; > +} > ? > /* Undocumented commands for unit testing. */ > > @@ -1760,6 +1863,7 @@ static const struct dpctl_command all_commands[] > = { > { "flush-conntrack", "[dp] [zone=N]", 0, 2, > dpctl_flush_conntrack, DP_RW }, > { "ct-stats-show", "[dp] [zone=N] [verbose]", > 0, 3, dpctl_ct_stats_show, DP_RO }, > + { "ct-bkts", "[dp] [gt=N]", 0, 2, dpctl_ct_bkts, DP_RO }, > { "help", "", 0, INT_MAX, dpctl_help, DP_RO }, > { "list-commands", "", 0, INT_MAX, dpctl_list_commands, DP_RO }, > > diff --git a/lib/dpctl.man b/lib/dpctl.man > index f95d54a..077fd99 100644 > --- a/lib/dpctl.man > +++ b/lib/dpctl.man > @@ -228,3 +228,11 @@ Displays the number of connections grouped by > protocol used by \fIdp\fR. > If \fBzone=\fIzone\fR is specified, numbers refer to the connections > in > \fBzone\fR. The \fBverbose\fR option allows to group by connection > state > for each protocol. > +. > +.TP > +\*(DX\fBct\-bkts\fR [\fIdp\fR] [\fBgt=\fIThreshold\fR] > +For each ConnTracker bucket, displays the number of connections used > +by \fIdp\fR. > +If \fBgt=\fIThreshold\fR is specified, bucket numbers are displayed > when > +the number of connections in a bucket is greater than > \fIThreshold\fR. > + > diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c > index 47a9fa0..10435e7 100644 > --- a/lib/dpif-netdev.c > +++ b/lib/dpif-netdev.c > @@ -5333,7 +5333,7 @@ struct dp_netdev_ct_dump { > > static int > dpif_netdev_ct_dump_start(struct dpif *dpif, struct > ct_dpif_dump_state **dump_, > - const uint16_t *pzone) > + const uint16_t *pzone, int *ptot_bkts) > { > struct dp_netdev *dp = get_dp_netdev(dpif); > struct dp_netdev_ct_dump *dump; > @@ -5342,7 +5342,7 @@ dpif_netdev_ct_dump_start(struct dpif *dpif, > struct ct_dpif_dump_state **dump_, > dump->dp = dp; > dump->ct = &dp->conntrack; > > - conntrack_dump_start(&dp->conntrack, &dump->dump, pzone); > + conntrack_dump_start(&dp->conntrack, &dump->dump, pzone, > ptot_bkts); > > *dump_ = &dump->up; > > diff --git a/lib/dpif-netlink.c b/lib/dpif-netlink.c > index 55effd1..b87bb16 100644 > --- a/lib/dpif-netlink.c > +++ b/lib/dpif-netlink.c > @@ -2847,13 +2847,13 @@ struct dpif_netlink_ct_dump_state { > static int > dpif_netlink_ct_dump_start(struct dpif *dpif OVS_UNUSED, > struct ct_dpif_dump_state **dump_, > - const uint16_t *zone) > + const uint16_t *zone, int *ptot_bkts) > { > struct dpif_netlink_ct_dump_state *dump; > int err; > > dump = xzalloc(sizeof *dump); > - err = nl_ct_dump_start(&dump->nl_ct_dump, zone); > + err = nl_ct_dump_start(&dump->nl_ct_dump, zone, ptot_bkts); > if (err) { > free(dump); > return err; > diff --git a/lib/dpif-provider.h b/lib/dpif-provider.h > index 64ac2e2..1d82a09 100644 > --- a/lib/dpif-provider.h > +++ b/lib/dpif-provider.h > @@ -419,7 +419,7 @@ struct dpif_class { > * ct_dump_done() should perform any cleanup necessary (including > * deallocating the 'state' structure, if applicable). */ > int (*ct_dump_start)(struct dpif *, struct ct_dpif_dump_state > **state, > - const uint16_t *zone); > + const uint16_t *zone, int *); > int (*ct_dump_next)(struct dpif *, struct ct_dpif_dump_state > *state, > struct ct_dpif_entry *entry); > int (*ct_dump_done)(struct dpif *, struct ct_dpif_dump_state > *state); > diff --git a/lib/netlink-conntrack.c b/lib/netlink-conntrack.c > index f0e2aea..ac48b15 100644 > --- a/lib/netlink-conntrack.c? > +++ b/lib/netlink-conntrack.c > @@ -123,7 +123,8 @@ struct nl_ct_dump_state { > > /* Initialize a conntrack netlink dump. */ > int > -nl_ct_dump_start(struct nl_ct_dump_state **statep, const uint16_t > *zone) > +nl_ct_dump_start(struct nl_ct_dump_state **statep, const uint16_t > *zone, > + int *ptot_bkts) > { > struct nl_ct_dump_state *state; > > @@ -140,6 +141,9 @@ nl_ct_dump_start(struct nl_ct_dump_state **statep, > const uint16_t *zone) > nl_dump_start(&state->dump, NETLINK_NETFILTER, &state->buf); > ofpbuf_clear(&state->buf); > > + /* Buckets to store connections are not used. */ > + *ptot_bkts = -1; > + > > [Darrell] > I tested this and looks good. > > return 0; > } > > diff --git a/lib/netlink-conntrack.h b/lib/netlink-conntrack.h > index 1263b21..a95aa69 100644 > --- a/lib/netlink-conntrack.h > +++ b/lib/netlink-conntrack.h > @@ -35,7 +35,8 @@ enum nl_ct_event_type { > > struct nl_ct_dump_state; > > -int nl_ct_dump_start(struct nl_ct_dump_state **, const uint16_t > *zone); > +int nl_ct_dump_start(struct nl_ct_dump_state **, const uint16_t > *zone, > + int *ptot_bkts); > int nl_ct_dump_next(struct nl_ct_dump_state *, struct ct_dpif_entry > *); > int nl_ct_dump_done(struct nl_ct_dump_state *); > > diff --git a/tests/test-netlink-conntrack.c b/tests/test-netlink- > conntrack.c > index 000062d..0d9dace 100644 > --- a/tests/test-netlink-conntrack.c > +++ b/tests/test-netlink-conntrack.c > @@ -106,6 +106,7 @@ test_nl_ct_dump(struct ovs_cmdl_context *ctx) > uint16_t zone, *pzone = NULL; > struct ct_dpif_entry entry; > int err; > + int tot_bkts; > > if (ctx->argc >= 2) { > if (!ovs_scan(ctx->argv[1], "zone=%"SCNu16, &zone)) { > @@ -113,7 +114,7 @@ test_nl_ct_dump(struct ovs_cmdl_context *ctx) > } > pzone = &zone; > } > - err = nl_ct_dump_start(&dump, pzone); > + err = nl_ct_dump_start(&dump, pzone, &tot_bkts); > if (err) { > ovs_fatal(err, "Error creating conntrack netlink dump"); > } > diff --git a/utilities/ovs-dpctl.c b/utilities/ovs-dpctl.c > index 7292fca..7b005ac 100644 > --- a/utilities/ovs-dpctl.c > +++ b/utilities/ovs-dpctl.c > @@ -202,6 +202,7 @@ usage(void *userdata OVS_UNUSED) > "delete all conntrack entries in ZONE\n" > " ct-stats-show [DP] [zone=ZONE] [verbose] " \ > "CT connections grouped by protocol\n" > + " ct-bkts [DP] [gt=N] display connections per CT > bucket\n" > "Each IFACE on add-dp, add-if, and set-if may be followed > by\n" > "comma-separated options. See ovs-dpctl(8) for syntax, or > the\n" > "Interface table in ovs-vswitchd.conf.db(5) for an options > list.\n" > -- > 2.4.11 > > _______________________________________________ > dev mailing list > [email protected] > https://urldefense.proofpoint.com/v2/url?u=https- > 3A__mail.openvswitch.org_mailman_listinfo_ovs- > 2Ddev&d=DwICAg&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih- > uZnsw&m=DzNptgj_q8j7ukiP3_wi0zYxZ4WDkZkhE1w1OSsoeD0&s=wOJItkDVJYq7hVfEWV_b > 7k3n8wFSLxdVYOIT2toHc40&e= > > > _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
