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Tue, 7 Mar 2023 15:09:47 -0700 From: Horatiu Vultur To: , , CC: , , , , , , , , Horatiu Vultur Subject: [PATCH net-next 3/5] net: lan966x: Add TC support for IS1 VCAP Date: Tue, 7 Mar 2023 23:09:27 +0100 Message-ID: <20230307220929.834219-4-horatiu.vultur@microchip.com> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20230307220929.834219-1-horatiu.vultur@microchip.com> References: <20230307220929.834219-1-horatiu.vultur@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Enable TC command to use IS1 VCAP Signed-off-by: Horatiu Vultur --- .../microchip/lan966x/lan966x_tc_flower.c | 105 +++++++++++++++++- 1 file changed, 102 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c b/d= rivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c index f960727ecaeec..8391652c1c45e 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c @@ -79,18 +79,61 @@ lan966x_tc_flower_handler_basic_usage(struct vcap_tc_fl= ower_parse_usage *st) VCAP_BIT_1); if (err) goto out; + } else if (st->l3_proto =3D=3D ETH_P_IPV6 && + st->admin->vtype =3D=3D VCAP_TYPE_IS1) { + /* Don't set any keys in this case */ + } else if (st->l3_proto =3D=3D ETH_P_SNAP && + st->admin->vtype =3D=3D VCAP_TYPE_IS1) { + err =3D vcap_rule_add_key_bit(st->vrule, + VCAP_KF_ETYPE_LEN_IS, + VCAP_BIT_0); + if (err) + goto out; + + err =3D vcap_rule_add_key_bit(st->vrule, + VCAP_KF_IP_SNAP_IS, + VCAP_BIT_1); + if (err) + goto out; + } else if (st->admin->vtype =3D=3D VCAP_TYPE_IS1) { + err =3D vcap_rule_add_key_bit(st->vrule, + VCAP_KF_ETYPE_LEN_IS, + VCAP_BIT_1); + if (err) + goto out; + + err =3D vcap_rule_add_key_u32(st->vrule, VCAP_KF_ETYPE, + st->l3_proto, ~0); + if (err) + goto out; } } if (match.mask->ip_proto) { st->l4_proto =3D match.key->ip_proto; =20 if (st->l4_proto =3D=3D IPPROTO_TCP) { + if (st->admin->vtype =3D=3D VCAP_TYPE_IS1) { + err =3D vcap_rule_add_key_bit(st->vrule, + VCAP_KF_TCP_UDP_IS, + VCAP_BIT_1); + if (err) + goto out; + } + err =3D vcap_rule_add_key_bit(st->vrule, VCAP_KF_TCP_IS, VCAP_BIT_1); if (err) goto out; } else if (st->l4_proto =3D=3D IPPROTO_UDP) { + if (st->admin->vtype =3D=3D VCAP_TYPE_IS1) { + err =3D vcap_rule_add_key_bit(st->vrule, + VCAP_KF_TCP_UDP_IS, + VCAP_BIT_1); + if (err) + goto out; + } + err =3D vcap_rule_add_key_bit(st->vrule, VCAP_KF_TCP_IS, VCAP_BIT_0); @@ -112,12 +155,30 @@ lan966x_tc_flower_handler_basic_usage(struct vcap_tc_= flower_parse_usage *st) return err; } =20 +static int +lan966x_tc_flower_handler_cvlan_usage(struct vcap_tc_flower_parse_usage *s= t) +{ + if (st->admin->vtype !=3D VCAP_TYPE_IS1) { + NL_SET_ERR_MSG_MOD(st->fco->common.extack, + "cvlan not supported in this VCAP"); + return -EINVAL; + } + + return vcap_tc_flower_handler_cvlan_usage(st); +} + static int lan966x_tc_flower_handler_vlan_usage(struct vcap_tc_flower_parse_usage *st) { - return vcap_tc_flower_handler_vlan_usage(st, - VCAP_KF_8021Q_VID_CLS, - VCAP_KF_8021Q_PCP_CLS); + enum vcap_key_field vid_key =3D VCAP_KF_8021Q_VID_CLS; + enum vcap_key_field pcp_key =3D VCAP_KF_8021Q_PCP_CLS; + + if (st->admin->vtype =3D=3D VCAP_TYPE_IS1) { + vid_key =3D VCAP_KF_8021Q_VID0; + pcp_key =3D VCAP_KF_8021Q_PCP0; + } + + return vcap_tc_flower_handler_vlan_usage(st, vid_key, pcp_key); } =20 static int @@ -128,6 +189,7 @@ static int [FLOW_DISSECTOR_KEY_CONTROL] =3D lan966x_tc_flower_handler_control_usage, [FLOW_DISSECTOR_KEY_PORTS] =3D vcap_tc_flower_handler_portnum_usage, [FLOW_DISSECTOR_KEY_BASIC] =3D lan966x_tc_flower_handler_basic_usage, + [FLOW_DISSECTOR_KEY_CVLAN] =3D lan966x_tc_flower_handler_cvlan_usage, [FLOW_DISSECTOR_KEY_VLAN] =3D lan966x_tc_flower_handler_vlan_usage, [FLOW_DISSECTOR_KEY_TCP] =3D vcap_tc_flower_handler_tcp_usage, [FLOW_DISSECTOR_KEY_ARP] =3D vcap_tc_flower_handler_arp_usage, @@ -143,6 +205,7 @@ static int lan966x_tc_flower_use_dissectors(struct flow= _cls_offload *f, .fco =3D f, .vrule =3D vrule, .l3_proto =3D ETH_P_ALL, + .admin =3D admin, }; int err =3D 0; =20 @@ -221,6 +284,31 @@ static int lan966x_tc_flower_action_check(struct vcap_= control *vctrl, return 0; } =20 +/* Add the actionset that is the default for the VCAP type */ +static int lan966x_tc_set_actionset(struct vcap_admin *admin, + struct vcap_rule *vrule) +{ + enum vcap_actionfield_set aset; + int err =3D 0; + + switch (admin->vtype) { + case VCAP_TYPE_IS1: + aset =3D VCAP_AFS_S1; + break; + case VCAP_TYPE_IS2: + aset =3D VCAP_AFS_BASE_TYPE; + break; + default: + return -EINVAL; + } + + /* Do not overwrite any current actionset */ + if (vrule->actionset =3D=3D VCAP_AFS_NO_VALUE) + err =3D vcap_set_rule_set_actionset(vrule, aset); + + return err; +} + static int lan966x_tc_flower_add(struct lan966x_port *port, struct flow_cls_offload *f, struct vcap_admin *admin, @@ -253,6 +341,13 @@ static int lan966x_tc_flower_add(struct lan966x_port *= port, flow_action_for_each(idx, act, &frule->action) { switch (act->id) { case FLOW_ACTION_TRAP: + if (admin->vtype !=3D VCAP_TYPE_IS2) { + NL_SET_ERR_MSG_MOD(f->common.extack, + "Trap action not supported in this VCAP"); + err =3D -EOPNOTSUPP; + goto out; + } + err =3D vcap_rule_add_action_bit(vrule, VCAP_AF_CPU_COPY_ENA, VCAP_BIT_1); @@ -266,6 +361,10 @@ static int lan966x_tc_flower_add(struct lan966x_port *= port, =20 break; case FLOW_ACTION_GOTO: + err =3D lan966x_tc_set_actionset(admin, vrule); + if (err) + goto out; + break; default: NL_SET_ERR_MSG_MOD(f->common.extack, --=20 2.38.0