diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2023-08-07 21:33:21 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-08-10 00:59:21 +0200 |
| commit | 35da47fe1c4766451def03a1b4f59c6b13a9373c (patch) | |
| tree | 8257242b3250cc1a50d5fb8d1af1926050aaae31 /drivers/net/netdevsim/netdev.c | |
| parent | net: netdevsim: use mock PHC driver (diff) | |
| download | linux-35da47fe1c4766451def03a1b4f59c6b13a9373c.tar.xz linux-35da47fe1c4766451def03a1b4f59c6b13a9373c.zip | |
net: netdevsim: mimic tc-taprio offload
To be able to use netdevsim for tc-testing with an offloaded tc-taprio
schedule, it needs to report a PTP clock (which it now does), and to
accept ndo_setup_tc(TC_SETUP_QDISC_TAPRIO) calls.
Since netdevsim has no packet I/O, this doesn't do anything intelligent,
it only allows taprio offload code paths to go through some level of
automated testing.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20230807193324.4128292-9-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/netdevsim/netdev.c')
| -rw-r--r-- | drivers/net/netdevsim/netdev.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c index 2a4a0c4065cf..2eac92f49631 100644 --- a/drivers/net/netdevsim/netdev.c +++ b/drivers/net/netdevsim/netdev.c @@ -209,6 +209,31 @@ static int nsim_set_vf_link_state(struct net_device *dev, int vf, int state) return 0; } +static void nsim_taprio_stats(struct tc_taprio_qopt_stats *stats) +{ + stats->window_drops = 0; + stats->tx_overruns = 0; +} + +static int nsim_setup_tc_taprio(struct net_device *dev, + struct tc_taprio_qopt_offload *offload) +{ + int err = 0; + + switch (offload->cmd) { + case TAPRIO_CMD_REPLACE: + case TAPRIO_CMD_DESTROY: + break; + case TAPRIO_CMD_STATS: + nsim_taprio_stats(&offload->stats); + break; + default: + err = -EOPNOTSUPP; + } + + return err; +} + static LIST_HEAD(nsim_block_cb_list); static int @@ -217,6 +242,8 @@ nsim_setup_tc(struct net_device *dev, enum tc_setup_type type, void *type_data) struct netdevsim *ns = netdev_priv(dev); switch (type) { + case TC_SETUP_QDISC_TAPRIO: + return nsim_setup_tc_taprio(dev, type_data); case TC_SETUP_BLOCK: return flow_block_cb_setup_simple(type_data, &nsim_block_cb_list, |