[libvirt] [PATCH 8/9] virsh: Implement VIR_DOMAIN_BANDWIDTH_IN_FLOOR

[Michal Privoznik]

We have a function parseRateStr() that parses --inbound and
--outbound arguments to both attach-interface and domiftune.
Now that we have all virTypedParams macros needed for QoS,
lets parse even floor attribute. The extended format for the
arguments looks like this then:

  --inbound average[,peak[,burst[,floor]]]

Signed-off-by: Michal Privoznik <mpriv...@redhat.com>
---
 tools/virsh-domain.c | 23 ++++++++++++++++++-----
 tools/virsh.pod      | 12 ++++++------
 2 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index bb40ddd..5b7e623 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -873,7 +873,7 @@ static int parseRateStr(vshControl *ctl,
     char *next;
     char *saveptr;
     enum {
-        AVERAGE, PEAK, BURST
+        AVERAGE, PEAK, BURST, FLOOR
     } state;
     int ret = -1;
 
@@ -882,7 +882,7 @@ static int parseRateStr(vshControl *ctl,
 
     next = vshStrdup(ctl, rateStr);
 
-    for (state = AVERAGE; state <= BURST; state++) {
+    for (state = AVERAGE; state <= FLOOR; state++) {
         unsigned long long *tmp;
         const char *field_name;
 
@@ -905,6 +905,11 @@ static int parseRateStr(vshControl *ctl,
             tmp = &rate->burst;
             field_name = "burst";
             break;
+
+        case FLOOR:
+            tmp = &rate->floor;
+            field_name = "floor";
+            break;
         }
 
         if (virStrToLong_ullp(token, NULL, 10, tmp) < 0) {
@@ -976,7 +981,7 @@ cmdAttachInterface(vshControl *ctl, const vshCmd *cmd)
         memset(&inbound, 0, sizeof(inbound));
         if (parseRateStr(ctl, inboundStr, &inbound) < 0)
             goto cleanup;
-        if (inbound.average == 0) {
+        if (!inbound.average && !inbound.floor) {
             vshError(ctl, _("inbound average is mandatory"));
             goto cleanup;
         }
@@ -3308,8 +3313,10 @@ cmdDomIftune(vshControl *ctl, const vshCmd *cmd)
                      UINT_MAX);
             goto cleanup;
         }
-        if (inbound.average == 0 && (inbound.burst || inbound.peak)) {
-            vshError(ctl, _("inbound average is mandatory"));
+
+        if ((!inbound.average && (inbound.burst || inbound.peak)) &&
+            !inbound.floor) {
+            vshError(ctl, _("either inbound average or floor is mandatory"));
             goto cleanup;
         }
 
@@ -3329,6 +3336,12 @@ cmdDomIftune(vshControl *ctl, const vshCmd *cmd)
                                   VIR_DOMAIN_BANDWIDTH_IN_BURST,
                                   inbound.burst) < 0)
             goto save_error;
+
+        if (inbound.floor &&
+            virTypedParamsAddUInt(&params, &nparams, &maxparams,
+                                  VIR_DOMAIN_BANDWIDTH_IN_FLOOR,
+                                  inbound.floor) < 0)
+            goto save_error;
     }
 
     if (outboundStr) {
diff --git a/tools/virsh.pod b/tools/virsh.pod
index 5ee9a96..a6148d3 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -770,7 +770,7 @@ I<interface-device> can be the interface's target name or 
the MAC address.
 
 =item B<domiftune> I<domain> I<interface-device>
 [[I<--config>] [I<--live>] | [I<--current>]]
-[I<--inbound average,peak,burst>]
+[I<--inbound average,peak,burst,floor>]
 [I<--outbound average,peak,burst>]
 
 Set or query the domain's network interface's bandwidth parameters.
@@ -779,9 +779,9 @@ or the MAC address.
 
 If no I<--inbound> or I<--outbound> is specified, this command will
 query and show the bandwidth settings. Otherwise, it will set the
-inbound or outbound bandwidth. I<average,peak,burst> is the same as
-in command I<attach-interface>.  Values for I<average> and I<peak> are
-expressed in kilobytes per second, while I<burst> is expressed in kilobytes
+inbound or outbound bandwidth. I<average,peak,burst,floor> is the same as
+in command I<attach-interface>.  Values for I<average>, I<peak> and I<floor>
+are expressed in kilobytes per second, while I<burst> is expressed in kilobytes
 in a single burst at -I<peak> speed as described in the Network XML
 documentation at L<http://libvirt.org/formatnetwork.html#elementQoS>.
 
@@ -2499,7 +2499,7 @@ Likewise, I<--shareable> is an alias for I<--mode 
shareable>.
 =item B<attach-interface> I<domain> I<type> I<source>
 [[[I<--live>] [I<--config>] | [I<--current>]] | [I<--persistent>]]
 [I<--target target>] [I<--mac mac>] [I<--script script>] [I<--model model>]
-[I<--inbound average,peak,burst>] [I<--outbound average,peak,burst>]
+[I<--inbound average,peak,burst,floor>] [I<--outbound average,peak,burst>]
 
 Attach a new network interface to the domain.  I<type> can be
 I<network> to indicate connection via a libvirt virtual network, or
@@ -2520,7 +2520,7 @@ instead of the default script not in addition to it; 
--script is valid
 only for interfaces of type I<bridge> and only for Xen domains.
 I<model> specifies the network device model to be presented to the
 domain.  I<inbound> and I<outbound> control the bandwidth of the
-interface.  I<peak> and I<burst> are optional, so "average,peak",
+interface.  I<peak>, I<burst> and I<floor> are optional, so "average,peak",
 "average,,burst" and "average" are also legal. Values for I<average>
 and I<peak> are expressed in kilobytes per second, while I<burst> is
 expressed in kilobytes in a single burst at -I<peak> speed as
-- 
2.4.6

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