> Subject: [PATCH v2 1/7] net/iavf: discard empty AdminQ descriptors on reset > > During PF-initiated resets iavf_clean_arq_element() has been observed > to return success with a fully zeroed descriptor (opcode 0). > These fell through to the default arm of the dispatch switch and > produced a "Request 0 is not supported yet" log flood in the field. > > Skip descriptors with opcode 0 so they are silently discarded and do not > flood log. > > Signed-off-by: Anurag Mandal <[email protected]>
Acked-by: Ciara Loftus <[email protected]> > --- > drivers/net/intel/iavf/iavf_vchnl.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/net/intel/iavf/iavf_vchnl.c > b/drivers/net/intel/iavf/iavf_vchnl.c > index f346837bf1..23e4107743 100644 > --- a/drivers/net/intel/iavf/iavf_vchnl.c > +++ b/drivers/net/intel/iavf/iavf_vchnl.c > @@ -614,6 +614,11 @@ iavf_handle_virtchnl_msg(struct rte_eth_dev *dev) > break; > } > aq_opc = rte_le_to_cpu_16(info.desc.opcode); > + > + /* opcode 0 means the descriptor is empty/zeroed, skip it */ > + if (aq_opc == 0) > + continue; > + > /* For the message sent from pf to vf, opcode is stored in > * cookie_high of struct iavf_aq_desc, while return error code > * are stored in cookie_low, Which is done by PF driver. > -- > 2.34.1
