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Date: Wed, 14 Sep 2022 18:33:01 +0300 From: Vladimir Oltean <vladimir.oltean@....com> To: netdev@...r.kernel.org Cc: "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Xiaoliang Yang <xiaoliang.yang_1@....com>, Rui Sousa <rui.sousa@....com>, Claudiu Manoil <claudiu.manoil@....com>, Alexandre Belloni <alexandre.belloni@...tlin.com>, UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>, Vivien Didelot <vivien.didelot@...il.com>, Florian Fainelli <f.fainelli@...il.com>, Michael Walle <michael@...le.cc>, Vinicius Costa Gomes <vinicius.gomes@...el.com>, Maxim Kochetkov <fido_max@...ox.ru>, Colin Foster <colin.foster@...advantage.com>, Richie Pearn <richard.pearn@....com>, Kurt Kanzenbach <kurt@...utronix.de>, Vladimir Oltean <olteanv@...il.com>, Jesse Brandeburg <jesse.brandeburg@...el.com>, Tony Nguyen <anthony.l.nguyen@...el.com>, Giuseppe Cavallaro <peppe.cavallaro@...com>, Alexandre Torgue <alexandre.torgue@...s.st.com>, Jose Abreu <joabreu@...opsys.com>, Jamal Hadi Salim <jhs@...atatu.com>, Cong Wang <xiyou.wangcong@...il.com>, Jiri Pirko <jiri@...nulli.us>, Gerhard Engleder <gerhard@...leder-embedded.com>, Grygorii Strashko <grygorii.strashko@...com>, linux-kernel@...r.kernel.org Subject: [PATCH net-next 11/13] igc: deny tc-taprio changes to per-tc max SDU Since the driver does not act upon the max_sdu argument, deny any other values except the default all-zeroes, which means that all traffic classes should use the same MTU as the port itself. Signed-off-by: Vladimir Oltean <vladimir.oltean@....com> --- drivers/net/ethernet/intel/igc/igc_main.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index bf6c461e1a2a..47fae443066c 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -5965,11 +5965,15 @@ static int igc_tsn_enable_qbv_scheduling(struct igc_adapter *adapter, struct tc_taprio_qopt_offload *qopt) { struct igc_hw *hw = &adapter->hw; - int err; + int tc, err; if (hw->mac.type != igc_i225) return -EOPNOTSUPP; + for (tc = 0; tc < TC_MAX_QUEUE; tc++) + if (qopt->max_sdu[tc]) + return -EOPNOTSUPP; + err = igc_save_qbv_schedule(adapter, qopt); if (err) return err; -- 2.34.1
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