From: Vlad Buslov <vlad@buslov.dev>
To: Po Liu <Po.Liu@nxp.com>
Cc: davem@davemloft.net, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, vinicius.gomes@intel.com,
claudiu.manoil@nxp.com, vladimir.oltean@nxp.com,
alexandru.marginean@nxp.com, michael.chan@broadcom.com,
vishal@chelsio.com, saeedm@mellanox.com, leon@kernel.org,
jiri@mellanox.com, idosch@mellanox.com,
alexandre.belloni@bootlin.com, UNGLinuxDriver@microchip.com,
kuba@kernel.org, jhs@mojatatu.com, xiyou.wangcong@gmail.com,
simon.horman@netronome.com, pablo@netfilter.org,
moshe@mellanox.com, m-karicheri2@ti.com,
andre.guedes@linux.intel.com, stephen@networkplumber.org
Subject: Re: [v3,net-next 2/4] net: schedule: add action gate offloading
Date: Wed, 22 Apr 2020 17:14:07 +0300 [thread overview]
Message-ID: <874ktbbob4.fsf@buslov.dev> (raw)
In-Reply-To: <20200422024852.23224-3-Po.Liu@nxp.com>
On Wed 22 Apr 2020 at 05:48, Po Liu <Po.Liu@nxp.com> wrote:
> Add the gate action to the flow action entry. Add the gate parameters to
> the tc_setup_flow_action() queueing to the entries of flow_action_entry
> array provide to the driver.
>
> Signed-off-by: Po Liu <Po.Liu@nxp.com>
> ---
> include/net/flow_offload.h | 10 +++
> include/net/tc_act/tc_gate.h | 115 +++++++++++++++++++++++++++++++++++
> net/sched/cls_api.c | 33 ++++++++++
> 3 files changed, 158 insertions(+)
>
> diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
> index 3619c6acf60f..94a30fe02e6d 100644
> --- a/include/net/flow_offload.h
> +++ b/include/net/flow_offload.h
> @@ -147,6 +147,7 @@ enum flow_action_id {
> FLOW_ACTION_MPLS_PUSH,
> FLOW_ACTION_MPLS_POP,
> FLOW_ACTION_MPLS_MANGLE,
> + FLOW_ACTION_GATE,
> NUM_FLOW_ACTIONS,
> };
>
> @@ -255,6 +256,15 @@ struct flow_action_entry {
> u8 bos;
> u8 ttl;
> } mpls_mangle;
> + struct {
> + u32 index;
> + s32 prio;
> + u64 basetime;
> + u64 cycletime;
> + u64 cycletimeext;
> + u32 num_entries;
> + struct action_gate_entry *entries;
> + } gate;
> };
> struct flow_action_cookie *cookie; /* user defined action cookie */
> };
> diff --git a/include/net/tc_act/tc_gate.h b/include/net/tc_act/tc_gate.h
> index b0ace55b2aaa..62633cb02c7a 100644
> --- a/include/net/tc_act/tc_gate.h
> +++ b/include/net/tc_act/tc_gate.h
> @@ -7,6 +7,13 @@
> #include <net/act_api.h>
> #include <linux/tc_act/tc_gate.h>
>
> +struct action_gate_entry {
> + u8 gate_state;
> + u32 interval;
> + s32 ipv;
> + s32 maxoctets;
> +};
> +
> struct tcfg_gate_entry {
> int index;
> u8 gate_state;
> @@ -51,4 +58,112 @@ struct tcf_gate {
> #define get_gate_param(act) ((struct tcf_gate_params *)act)
> #define get_gate_action(p) ((struct gate_action *)p)
>
> +static inline bool is_tcf_gate(const struct tc_action *a)
> +{
> +#ifdef CONFIG_NET_CLS_ACT
> + if (a->ops && a->ops->id == TCA_ID_GATE)
> + return true;
> +#endif
> + return false;
> +}
> +
> +static inline u32 tcf_gate_index(const struct tc_action *a)
> +{
> + return a->tcfa_index;
> +}
> +
> +static inline s32 tcf_gate_prio(const struct tc_action *a)
> +{
> + s32 tcfg_prio;
> +
> + rcu_read_lock();
> + tcfg_prio = rcu_dereference(to_gate(a)->actg)->param.tcfg_priority;
> + rcu_read_unlock();
> +
> + return tcfg_prio;
> +}
> +
> +static inline u64 tcf_gate_basetime(const struct tc_action *a)
> +{
> + u64 tcfg_basetime;
> +
> + rcu_read_lock();
> + tcfg_basetime =
> + rcu_dereference(to_gate(a)->actg)->param.tcfg_basetime;
> + rcu_read_unlock();
> +
> + return tcfg_basetime;
> +}
> +
> +static inline u64 tcf_gate_cycletime(const struct tc_action *a)
> +{
> + u64 tcfg_cycletime;
> +
> + rcu_read_lock();
> + tcfg_cycletime =
> + rcu_dereference(to_gate(a)->actg)->param.tcfg_cycletime;
> + rcu_read_unlock();
> +
> + return tcfg_cycletime;
> +}
> +
> +static inline u64 tcf_gate_cycletimeext(const struct tc_action *a)
> +{
> + u64 tcfg_cycletimeext;
> +
> + rcu_read_lock();
> + tcfg_cycletimeext =
> + rcu_dereference(to_gate(a)->actg)->param.tcfg_cycletime_ext;
> + rcu_read_unlock();
> +
> + return tcfg_cycletimeext;
> +}
> +
> +static inline u32 tcf_gate_num_entries(const struct tc_action *a)
> +{
> + u32 num_entries;
> +
> + rcu_read_lock();
> + num_entries =
> + rcu_dereference(to_gate(a)->actg)->param.num_entries;
> + rcu_read_unlock();
> +
> + return num_entries;
> +}
> +
> +static inline struct action_gate_entry
> + *tcf_gate_get_list(const struct tc_action *a)
> +{
> + struct action_gate_entry *oe;
> + struct tcf_gate_params *p;
> + struct tcfg_gate_entry *entry;
> + u32 num_entries;
> + int i = 0;
> +
> + rcu_read_lock();
> + p = &(rcu_dereference(to_gate(a)->actg)->param);
> + num_entries = p->num_entries;
> + rcu_read_unlock();
Here you obtain a pointer to part of rcu-protected object and use it
past rcu read lock block.
> +
> + list_for_each_entry(entry, &p->entries, list)
> + i++;
> +
> + if (i != num_entries)
> + return NULL;
> +
> + oe = kzalloc(sizeof(*oe) * num_entries, GFP_KERNEL);
> + if (!oe)
> + return NULL;
> +
> + i = 0;
> + list_for_each_entry(entry, &p->entries, list) {
> + oe[i].gate_state = entry->gate_state;
> + oe[i].interval = entry->interval;
> + oe[i].ipv = entry->ipv;
> + oe[i].maxoctets = entry->maxoctets;
> + i++;
> + }
> +
> + return oe;
> +}
> #endif
> diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
> index 55bd1429678f..ca8bf74be4ba 100644
> --- a/net/sched/cls_api.c
> +++ b/net/sched/cls_api.c
> @@ -39,6 +39,7 @@
> #include <net/tc_act/tc_skbedit.h>
> #include <net/tc_act/tc_ct.h>
> #include <net/tc_act/tc_mpls.h>
> +#include <net/tc_act/tc_gate.h>
> #include <net/flow_offload.h>
>
> extern const struct nla_policy rtm_tca_policy[TCA_MAX + 1];
> @@ -3523,6 +3524,27 @@ static void tcf_sample_get_group(struct flow_action_entry *entry,
> #endif
> }
>
> +static void tcf_gate_entry_destructor(void *priv)
> +{
> + struct action_gate_entry *oe = priv;
> +
> + kfree(oe);
> +}
> +
> +static int tcf_gate_get_entries(struct flow_action_entry *entry,
> + const struct tc_action *act)
> +{
> + entry->gate.entries = tcf_gate_get_list(act);
> +
> + if (!entry->gate.entries)
> + return -EINVAL;
> +
> + entry->destructor = tcf_gate_entry_destructor;
> + entry->destructor_priv = entry->gate.entries;
> +
> + return 0;
> +}
> +
> int tc_setup_flow_action(struct flow_action *flow_action,
> const struct tcf_exts *exts)
> {
> @@ -3669,6 +3691,17 @@ int tc_setup_flow_action(struct flow_action *flow_action,
> } else if (is_tcf_skbedit_priority(act)) {
> entry->id = FLOW_ACTION_PRIORITY;
> entry->priority = tcf_skbedit_priority(act);
> + } else if (is_tcf_gate(act)) {
> + entry->id = FLOW_ACTION_GATE;
> + entry->gate.index = tcf_gate_index(act);
> + entry->gate.prio = tcf_gate_prio(act);
> + entry->gate.basetime = tcf_gate_basetime(act);
> + entry->gate.cycletime = tcf_gate_cycletime(act);
> + entry->gate.cycletimeext = tcf_gate_cycletimeext(act);
> + entry->gate.num_entries = tcf_gate_num_entries(act);
> + err = tcf_gate_get_entries(entry, act);
> + if (err)
> + goto err_out;
> } else {
> err = -EOPNOTSUPP;
> goto err_out_locked;
next prev parent reply other threads:[~2020-04-22 14:14 UTC|newest]
Thread overview: 125+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-06 12:55 [RFC,net-next 0/9] Introduce a flow gate control action and apply IEEE Po Liu
2020-03-06 12:55 ` [RFC,net-next 1/9] net: qos offload add flow status with dropped count Po Liu
2020-03-06 12:56 ` [RFC,net-next 2/9] net: qos: introduce a gate control flow action Po Liu
2020-03-06 19:11 ` Jakub Kicinski
2020-03-07 6:05 ` [EXT] " Po Liu
2020-03-12 22:14 ` Vinicius Costa Gomes
2020-03-13 3:47 ` [EXT] " Po Liu
2020-03-13 18:36 ` Cong Wang
2020-03-14 4:09 ` [EXT] " Po Liu
2020-03-06 12:56 ` [RFC,net-next 3/9] net: schedule: add action gate offloading Po Liu
2020-03-06 19:02 ` Jakub Kicinski
2020-03-06 19:19 ` Jakub Kicinski
2020-03-07 4:38 ` [EXT] " Po Liu
2020-03-06 12:56 ` [RFC,net-next 4/9] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-03-06 12:56 ` [RFC,net-next 5/9] net: enetc: add tc flower psfp offload driver Po Liu
2020-03-12 22:14 ` Vinicius Costa Gomes
2020-03-13 5:59 ` [EXT] " Po Liu
2020-03-06 12:56 ` [RFC,net-next 6/9] net: qos: add tc police offloading action with max frame size limit Po Liu
2020-06-23 6:34 ` [v1,net-next 1/4] " Po Liu
2020-06-23 6:34 ` [v1,net-next 2/4] net: enetc: add support max frame size for tc flower offload Po Liu
2020-06-23 6:34 ` [v1,net-next 3/4] net: qos: police action add index for tc flower offloading Po Liu
2020-06-23 7:09 ` Ido Schimmel
2020-06-23 7:39 ` [EXT] " Po Liu
2020-06-23 10:08 ` Jamal Hadi Salim
2020-06-23 6:34 ` [v1,net-next 4/4] net: enetc add tc flower offload flow metering policing action Po Liu
2020-06-23 14:54 ` kernel test robot
2020-06-23 15:08 ` kernel test robot
2020-06-24 9:36 ` [v2,net-next 1/4] net: qos: add tc police offloading action with max frame size limit Po Liu
2020-06-24 9:36 ` [v2,net-next 2/4] net: enetc: add support max frame size for tc flower offload Po Liu
2020-06-25 5:04 ` David Miller
2020-06-24 9:36 ` [v2,net-next 3/4] net: qos: police action add index for tc flower offloading Po Liu
2020-06-25 5:04 ` David Miller
2020-06-24 9:36 ` [v2,net-next 4/4] net: enetc add tc flower offload flow metering policing action Po Liu
2020-06-25 5:04 ` David Miller
2020-06-25 5:04 ` [v2,net-next 1/4] net: qos: add tc police offloading action with max frame size limit David Miller
2020-06-23 7:01 ` [v1,net-next " Ido Schimmel
2020-03-06 12:56 ` [RFC,net-next 7/9] net: enetc: add support max frame size for tc flower offload Po Liu
2020-03-06 12:56 ` [RFC,net-next 8/9] net: qos: police action add index for tc flower offloading Po Liu
2020-06-21 10:04 ` Ido Schimmel
2020-03-06 12:56 ` [RFC,net-next 9/9] net: enetc add tc flower offload flow metering policing action Po Liu
2020-03-06 12:56 ` [RFC, iproute2-next] iproute2:tc:action: add a gate control action Po Liu
2020-03-24 3:47 ` [v1,net-next 0/5] Introduce a flow gate control action and apply IEEE Po Liu
2020-03-24 3:47 ` [v1,net-next 1/5] net: qos offload add flow status with dropped count Po Liu
2020-03-24 10:01 ` Jiri Pirko
2020-03-24 13:04 ` [EXT] " Po Liu
2020-03-24 3:47 ` [v1,net-next 2/5] net: qos: introduce a gate control flow action Po Liu
2020-03-24 10:19 ` Jiri Pirko
2020-03-24 10:28 ` [EXT] " Po Liu
2020-03-24 3:47 ` [v1,net-next 3/5] net: schedule: add action gate offloading Po Liu
2020-03-24 3:47 ` [v1,net-next 4/5] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-03-24 11:18 ` kbuild test robot
2020-03-24 12:14 ` Jiri Pirko
2020-03-24 3:47 ` [v1,net-next 5/5] net: enetc: add tc flower psfp offload driver Po Liu
2020-03-24 12:53 ` kbuild test robot
2020-03-24 3:47 ` [v1,iproute2 1/2] iproute2:tc:action: add a gate control action Po Liu
2020-03-24 21:59 ` Stephen Hemminger
2020-03-25 2:40 ` [EXT] " Po Liu
2020-03-24 3:47 ` [v1,iproute2 2/2] iproute2: add gate action man page Po Liu
2020-04-14 5:40 ` [v2,net-next 0/4] Introduce a flow gate control action and apply IEEE Po Liu
2020-04-14 5:40 ` [ v2,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-04-14 5:40 ` [ v2,net-next 2/4] net: schedule: add action gate offloading Po Liu
2020-04-14 5:40 ` [ v2,net-next 3/4] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-04-14 5:40 ` [ v2,net-next 4/4] net: enetc: add tc flower psfp offload driver Po Liu
2020-04-14 23:41 ` [v2,net-next 0/4] Introduce a flow gate control action and apply IEEE David Miller
2020-04-18 1:12 ` Po Liu
2020-04-18 1:12 ` [ v2,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-04-18 1:12 ` [ v2,net-next 2/4] net: schedule: add action gate offloading Po Liu
2020-04-18 1:12 ` [ v2,net-next 3/4] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-04-18 1:12 ` [ v2,net-next 4/4] net: enetc: add tc flower psfp offload driver Po Liu
2020-04-18 22:52 ` Vladimir Oltean
2020-04-19 1:44 ` [EXT] " Po Liu
2020-04-22 2:48 ` [v3,net-next 0/4] Introduce a flow gate control action and apply IEEE Po Liu
2020-04-22 2:48 ` [v3,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-04-22 13:23 ` Vlad Buslov
2020-04-23 3:14 ` [EXT] " Po Liu
2020-04-23 7:43 ` Vlad Buslov
2020-04-23 8:32 ` Po Liu
2020-04-23 9:15 ` Po Liu
2020-04-23 11:14 ` Vlad Buslov
2020-04-23 11:03 ` Vlad Buslov
2020-04-22 19:19 ` Allan W. Nielsen
2020-04-22 19:28 ` Vladimir Oltean
2020-04-22 20:05 ` Dave Taht
2020-04-23 3:29 ` [EXT] " Po Liu
2020-04-23 19:11 ` Allan W. Nielsen
2020-04-23 3:27 ` [EXT] " Po Liu
2020-04-23 17:38 ` Vinicius Costa Gomes
2020-04-23 19:17 ` Allan W. Nielsen
2020-04-24 3:23 ` [EXT] " Po Liu
2020-04-24 17:41 ` Vinicius Costa Gomes
2020-04-25 1:49 ` Po Liu
2020-04-22 2:48 ` [v3,net-next 2/4] net: schedule: add action gate offloading Po Liu
2020-04-22 14:14 ` Vlad Buslov [this message]
2020-04-22 2:48 ` [v3,net-next 3/4] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-04-22 2:48 ` [v3,net-next 4/4] net: enetc: add tc flower psfp offload driver Po Liu
2020-04-28 3:34 ` [v4,net-next 0/4] Introduce a flow gate control action and apply IEEE Po Liu
2020-04-28 3:34 ` [v4,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-04-29 17:04 ` Vlad Buslov
2020-04-30 0:52 ` [EXT] " Po Liu
2020-04-28 3:34 ` [v4,net-next 2/4] net: schedule: add action gate offloading Po Liu
2020-04-29 17:40 ` Vlad Buslov
2020-04-28 3:34 ` [v4,net-next 3/4] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-04-28 3:34 ` [v4,net-next 4/4] net: enetc: add tc flower psfp offload driver Po Liu
2020-05-01 0:53 ` [v5,net-next 0/4] Introduce a flow gate control action and apply IEEE Po Liu
2020-05-01 0:53 ` [v5,net-next 1/4] net: qos: introduce a gate control flow action Po Liu
2020-05-01 0:53 ` [v5,net-next 2/4] net: schedule: add action gate offloading Po Liu
2020-05-01 0:53 ` [v5,net-next 3/4] net: enetc: add hw tc hw offload features for PSPF capability Po Liu
2020-05-01 0:53 ` [v5,net-next 4/4] net: enetc: add tc flower psfp offload driver Po Liu
2020-05-03 6:32 ` [v3,iproute2 1/2] iproute2:tc:action: add a gate control action Po Liu
2020-05-03 6:32 ` [v3,iproute2 2/2] iproute2: add gate action man page Po Liu
2020-05-06 8:40 ` [v4,iproute2-next 1/2] iproute2-next:tc:action: add a gate control action Po Liu
2020-05-06 8:40 ` [v4,iproute2-next 2/2] iproute2-next: add gate action man page Po Liu
2020-05-08 7:02 ` [v5,iproute2-next 1/2] iproute2-next:tc:action: add a gate control action Po Liu
2020-05-08 7:02 ` [v5,iproute2-next 2/2] iproute2-next: add gate action man page Po Liu
2020-05-13 2:21 ` [v5,iproute2-next 1/2] iproute2-next:tc:action: add a gate control action David Ahern
2020-05-06 12:54 ` [v4,iproute2-next " Davide Caratti
2020-05-07 2:28 ` [EXT] " Po Liu
2020-05-06 15:21 ` Stephen Hemminger
2020-05-05 0:05 ` [v3,iproute2 1/2] iproute2:tc:action: " Stephen Hemminger
2020-05-05 0:06 ` Stephen Hemminger
2020-05-01 23:08 ` [v5,net-next 0/4] Introduce a flow gate control action and apply IEEE David Miller
2020-06-19 6:01 ` [v2,net-next] net: qos offload add flow status with dropped count Po Liu
2020-06-19 7:03 ` Simon Horman
2020-06-19 18:00 ` Vlad Buslov
2020-06-19 19:54 ` David Miller
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