[ovs-dev] [PATCH v2 ovn] Encode the virtual port key in vport_bind action in network byte order

Mark Michelson mmichels at redhat.com
Mon Aug 5 20:37:44 UTC 2019


I applied the change to master.

On 8/5/19 10:49 AM, Dumitru Ceara wrote:
> On Mon, Aug 5, 2019 at 3:50 PM <nusiddiq at redhat.com> wrote:
>>
>> From: Numan Siddique <nusiddiq at redhat.com>
>>
>> The commit [1] encoded the vport key using uint32_t and the test case
>> "action parsing" is failing for s380 arch.
>>
>> This patch fixes this issue by encoding the vport key in the network byte
>> order.
>>
>> [1] - 054f4c85c413("Add a new logical switch port type - 'virtual'")
>> Fixes: 054f4c85c413("Add a new logical switch port type - 'virtual'")
>>
>> Signed-off-by: Numan Siddique <nusiddiq at redhat.com>
> 
> Looks good to me. Thanks!
> 
> Acked-by: Dumitru Ceara <dceara at redhat.com>
> 
>> ---
>> v1 -> v2
>> =======
>>    * There was a sparse compilation error when I missed checking when
>>      submitting v1.  Corrected it.
>>
>>
>>   controller/pinctrl.c | 11 ++++++-----
>>   lib/actions.c        |  3 ++-
>>   tests/ovn.at         |  2 +-
>>   3 files changed, 9 insertions(+), 7 deletions(-)
>>
>> diff --git a/controller/pinctrl.c b/controller/pinctrl.c
>> index f05579fcc..f27718f55 100644
>> --- a/controller/pinctrl.c
>> +++ b/controller/pinctrl.c
>> @@ -4489,16 +4489,17 @@ pinctrl_handle_bind_vport(
>>       uint32_t vport_parent_key = md->regs[MFF_LOG_INPORT - MFF_REG0];
>>
>>       /* Get the virtual port key from the userdata buffer. */
>> -    uint32_t *vport_key = ofpbuf_try_pull(userdata, sizeof *vport_key);
>> +    ovs_be32 *vp_key = ofpbuf_try_pull(userdata, sizeof *vp_key);
>>
>> -    if (!vport_key) {
>> +    if (!vp_key) {
>>           return;
>>       }
>>
>> -    uint32_t hash = hash_2words(dp_key, *vport_key);
>> +    uint32_t vport_key = ntohl(*vp_key);
>> +    uint32_t hash = hash_2words(dp_key, vport_key);
>>
>>       struct put_vport_binding *vpb
>> -        = pinctrl_find_put_vport_binding(dp_key, *vport_key, hash);
>> +        = pinctrl_find_put_vport_binding(dp_key, vport_key, hash);
>>       if (!vpb) {
>>           if (hmap_count(&put_vport_bindings) >= 1000) {
>>               COVERAGE_INC(pinctrl_drop_put_vport_binding);
>> @@ -4510,7 +4511,7 @@ pinctrl_handle_bind_vport(
>>       }
>>
>>       vpb->dp_key = dp_key;
>> -    vpb->vport_key = *vport_key;
>> +    vpb->vport_key = vport_key;
>>       vpb->vport_parent_key = vport_parent_key;
>>
>>       notify_pinctrl_main();
>> diff --git a/lib/actions.c b/lib/actions.c
>> index 66916a837..b0cb3490b 100644
>> --- a/lib/actions.c
>> +++ b/lib/actions.c
>> @@ -2645,7 +2645,8 @@ encode_BIND_VPORT(const struct ovnact_bind_vport *vp,
>>       size_t oc_offset = encode_start_controller_op(ACTION_OPCODE_BIND_VPORT,
>>                                                     false, NX_CTLR_NO_METER,
>>                                                     ofpacts);
>> -    ofpbuf_put(ofpacts, &vport_key, sizeof(uint32_t));
>> +    ovs_be32 vp_key = htonl(vport_key);
>> +    ofpbuf_put(ofpacts, &vp_key, sizeof(ovs_be32));
>>       encode_finish_controller_op(oc_offset, ofpacts);
>>       encode_restore_args(args, ARRAY_SIZE(args), ofpacts);
>>   }
>> diff --git a/tests/ovn.at b/tests/ovn.at
>> index e88cffa20..344efad26 100644
>> --- a/tests/ovn.at
>> +++ b/tests/ovn.at
>> @@ -1371,7 +1371,7 @@ reg0[0] = check_pkt_larger(foo);
>>   # bind_vport
>>   # lsp1's port key is 0x11.
>>   bind_vport("lsp1", inport);
>> -    encodes as controller(userdata=00.00.00.11.00.00.00.00.11.00.00.00)
>> +    encodes as controller(userdata=00.00.00.11.00.00.00.00.00.00.00.11)
>>   # lsp2 doesn't exist. So it should be encoded as drop.
>>   bind_vport("lsp2", inport);
>>       encodes as drop
>> --
>> 2.21.0
>>
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