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[92.34.204.253]) by smtp.gmail.com with ESMTPSA id x23sm1933462lfd.136.2021.09.28.07.44.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Sep 2021 07:44:42 -0700 (PDT) From: Linus Walleij To: Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S . Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, DENG Qingfang , Mauri Sandberg , =?utf-8?q?Alvin_=C5=A0ipraga?= , Linus Walleij Subject: [PATCH net-next 1/6 v8] net: dsa: rtl8366rb: Support bridge offloading Date: Tue, 28 Sep 2021 16:41:44 +0200 Message-Id: <20210928144149.84612-2-linus.walleij@linaro.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210928144149.84612-1-linus.walleij@linaro.org> References: <20210928144149.84612-1-linus.walleij@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: DENG Qingfang Use port isolation registers to configure bridge offloading. Tested on the D-Link DIR-685, switching between ports and sniffing ports to make sure no packets leak. Cc: Vladimir Oltean Cc: Mauri Sandberg Reviewed-by: Vladimir Oltean Reviewed-by: Alvin Šipraga Reviewed-by: Florian Fainelli Signed-off-by: DENG Qingfang Signed-off-by: Linus Walleij --- ChangeLog v7->v8: - No changes just resending with the rest of the patches. ChangeLog v6->v7: - Collect Vladimir's review tag. ChangeLog v5->v6: - No changes just resending with the rest of the patches. ChangeLog v4->v5: - No changes just resending with the rest of the patches. ChangeLog v3->v4: - Fix a bug where I managed to mask off the CPU port from the ports we could access leading to numb bridge. - Reword some comments. ChangeLog v2->v3: - Parens around the (pmask) in the port isolation macro. - Do not exit join/leave functions on regmap failures, print an error and continue. - Clarify comments around the port in join/leave functions. ChangeLog v1->v2: - introduce RTL8366RB_PORT_ISO_PORTS() to shift the port mask into place so we are not confused by the enable bit. - Use this with dsa_user_ports() to isolate the CPU port from itself. --- drivers/net/dsa/rtl8366rb.c | 86 +++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) -- 2.31.1 diff --git a/drivers/net/dsa/rtl8366rb.c b/drivers/net/dsa/rtl8366rb.c index a89093bc6c6a..b930050cfd1b 100644 --- a/drivers/net/dsa/rtl8366rb.c +++ b/drivers/net/dsa/rtl8366rb.c @@ -300,6 +300,13 @@ #define RTL8366RB_INTERRUPT_STATUS_REG 0x0442 #define RTL8366RB_NUM_INTERRUPT 14 /* 0..13 */ +/* Port isolation registers */ +#define RTL8366RB_PORT_ISO_BASE 0x0F08 +#define RTL8366RB_PORT_ISO(pnum) (RTL8366RB_PORT_ISO_BASE + (pnum)) +#define RTL8366RB_PORT_ISO_EN BIT(0) +#define RTL8366RB_PORT_ISO_PORTS_MASK GENMASK(7, 1) +#define RTL8366RB_PORT_ISO_PORTS(pmask) ((pmask) << 1) + /* bits 0..5 enable force when cleared */ #define RTL8366RB_MAC_FORCE_CTRL_REG 0x0F11 @@ -835,6 +842,21 @@ static int rtl8366rb_setup(struct dsa_switch *ds) if (ret) return ret; + /* Isolate all user ports so they can only send packets to itself and the CPU port */ + for (i = 0; i < RTL8366RB_PORT_NUM_CPU; i++) { + ret = regmap_write(smi->map, RTL8366RB_PORT_ISO(i), + RTL8366RB_PORT_ISO_PORTS(BIT(RTL8366RB_PORT_NUM_CPU)) | + RTL8366RB_PORT_ISO_EN); + if (ret) + return ret; + } + /* CPU port can send packets to all ports */ + ret = regmap_write(smi->map, RTL8366RB_PORT_ISO(RTL8366RB_PORT_NUM_CPU), + RTL8366RB_PORT_ISO_PORTS(dsa_user_ports(ds)) | + RTL8366RB_PORT_ISO_EN); + if (ret) + return ret; + /* Set up the "green ethernet" feature */ ret = rtl8366rb_jam_table(rtl8366rb_green_jam, ARRAY_SIZE(rtl8366rb_green_jam), smi, false); @@ -1127,6 +1149,68 @@ rtl8366rb_port_disable(struct dsa_switch *ds, int port) rb8366rb_set_port_led(smi, port, false); } +static int +rtl8366rb_port_bridge_join(struct dsa_switch *ds, int port, + struct net_device *bridge) +{ + struct realtek_smi *smi = ds->priv; + unsigned int port_bitmap = 0; + int ret, i; + + /* Loop over all other ports than the current one */ + for (i = 0; i < RTL8366RB_PORT_NUM_CPU; i++) { + /* Current port handled last */ + if (i == port) + continue; + /* Not on this bridge */ + if (dsa_to_port(ds, i)->bridge_dev != bridge) + continue; + /* Join this port to each other port on the bridge */ + ret = regmap_update_bits(smi->map, RTL8366RB_PORT_ISO(i), + RTL8366RB_PORT_ISO_PORTS(BIT(port)), + RTL8366RB_PORT_ISO_PORTS(BIT(port))); + if (ret) + dev_err(smi->dev, "failed to join port %d\n", port); + + port_bitmap |= BIT(i); + } + + /* Set the bits for the ports we can access */ + return regmap_update_bits(smi->map, RTL8366RB_PORT_ISO(port), + RTL8366RB_PORT_ISO_PORTS(port_bitmap), + RTL8366RB_PORT_ISO_PORTS(port_bitmap)); +} + +static void +rtl8366rb_port_bridge_leave(struct dsa_switch *ds, int port, + struct net_device *bridge) +{ + struct realtek_smi *smi = ds->priv; + unsigned int port_bitmap = 0; + int ret, i; + + /* Loop over all other ports than this one */ + for (i = 0; i < RTL8366RB_PORT_NUM_CPU; i++) { + /* Current port handled last */ + if (i == port) + continue; + /* Not on this bridge */ + if (dsa_to_port(ds, i)->bridge_dev != bridge) + continue; + /* Remove this port from any other port on the bridge */ + ret = regmap_update_bits(smi->map, RTL8366RB_PORT_ISO(i), + RTL8366RB_PORT_ISO_PORTS(BIT(port)), 0); + if (ret) + dev_err(smi->dev, "failed to leave port %d\n", port); + + port_bitmap |= BIT(i); + } + + /* Clear the bits for the ports we can not access, leave ourselves */ + regmap_update_bits(smi->map, RTL8366RB_PORT_ISO(port), + RTL8366RB_PORT_ISO_PORTS(port_bitmap), 0); +} + static int rtl8366rb_change_mtu(struct dsa_switch *ds, int port, int new_mtu) { struct realtek_smi *smi = ds->priv; @@ -1510,6 +1594,8 @@ static const struct dsa_switch_ops rtl8366rb_switch_ops = { .get_strings = rtl8366_get_strings, .get_ethtool_stats = rtl8366_get_ethtool_stats, .get_sset_count = rtl8366_get_sset_count, + .port_bridge_join = rtl8366rb_port_bridge_join, + .port_bridge_leave = rtl8366rb_port_bridge_leave, .port_vlan_filtering = rtl8366_vlan_filtering, .port_vlan_add = rtl8366_vlan_add, .port_vlan_del = rtl8366_vlan_del, From patchwork Tue Sep 28 14:41:45 2021 Content-Type: text/plain; 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[92.34.204.253]) by smtp.gmail.com with ESMTPSA id x23sm1933462lfd.136.2021.09.28.07.44.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Sep 2021 07:44:44 -0700 (PDT) From: Linus Walleij To: Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S . Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, Linus Walleij , Mauri Sandberg , DENG Qingfang , =?utf-8?q?Alvin_=C5=A0ipraga?= Subject: [PATCH net-next 2/6 v8] net: dsa: rtl8366: Drop custom VLAN set-up Date: Tue, 28 Sep 2021 16:41:45 +0200 Message-Id: <20210928144149.84612-3-linus.walleij@linaro.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210928144149.84612-1-linus.walleij@linaro.org> References: <20210928144149.84612-1-linus.walleij@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This hacky default VLAN setup was done in order to direct packets to the right ports and provide port isolation, both which we now support properly using custom tags and proper bridge port isolation. We can drop the custom VLAN code and leave all VLAN handling alone, as users expect things to be. We can also drop ds->configure_vlan_while_not_filtering = false; and let the core deal with any VLANs it wants. Cc: Mauri Sandberg Cc: DENG Qingfang Reviewed-by: Vladimir Oltean Reviewed-by: Alvin Šipraga Reviewed-by: Florian Fainelli Signed-off-by: Linus Walleij --- ChangeLog v7->v8: - No changes just resending with the rest of the patches. ChangeLog v6->v7: - No changes just resending with the rest of the patches. ChangeLog v5->v6: - No changes just resending with the rest of the patches. ChangeLog v4->v5: - No changes just resending with the rest of the patches. ChangeLog v3->v4: - No changes ChangeLog v2->v3: - Collect a bunch of reviewed-by tags ChangeLog v1->v2: - No changes. --- drivers/net/dsa/realtek-smi-core.h | 1 - drivers/net/dsa/rtl8366.c | 48 ------------------------------ drivers/net/dsa/rtl8366rb.c | 4 +-- 3 files changed, 1 insertion(+), 52 deletions(-) -- 2.31.1 diff --git a/drivers/net/dsa/realtek-smi-core.h b/drivers/net/dsa/realtek-smi-core.h index fcf465f7f922..c8fbd7b9fd0b 100644 --- a/drivers/net/dsa/realtek-smi-core.h +++ b/drivers/net/dsa/realtek-smi-core.h @@ -129,7 +129,6 @@ int rtl8366_set_pvid(struct realtek_smi *smi, unsigned int port, int rtl8366_enable_vlan4k(struct realtek_smi *smi, bool enable); int rtl8366_enable_vlan(struct realtek_smi *smi, bool enable); int rtl8366_reset_vlan(struct realtek_smi *smi); -int rtl8366_init_vlan(struct realtek_smi *smi); int rtl8366_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, struct netlink_ext_ack *extack); int rtl8366_vlan_add(struct dsa_switch *ds, int port, diff --git a/drivers/net/dsa/rtl8366.c b/drivers/net/dsa/rtl8366.c index 75897a369096..59c5bc4f7b71 100644 --- a/drivers/net/dsa/rtl8366.c +++ b/drivers/net/dsa/rtl8366.c @@ -292,54 +292,6 @@ int rtl8366_reset_vlan(struct realtek_smi *smi) } EXPORT_SYMBOL_GPL(rtl8366_reset_vlan); -int rtl8366_init_vlan(struct realtek_smi *smi) -{ - int port; - int ret; - - ret = rtl8366_reset_vlan(smi); - if (ret) - return ret; - - /* Loop over the available ports, for each port, associate - * it with the VLAN (port+1) - */ - for (port = 0; port < smi->num_ports; port++) { - u32 mask; - - if (port == smi->cpu_port) - /* For the CPU port, make all ports members of this - * VLAN. - */ - mask = GENMASK((int)smi->num_ports - 1, 0); - else - /* For all other ports, enable itself plus the - * CPU port. - */ - mask = BIT(port) | BIT(smi->cpu_port); - - /* For each port, set the port as member of VLAN (port+1) - * and untagged, except for the CPU port: the CPU port (5) is - * member of VLAN 6 and so are ALL the other ports as well. - * Use filter 0 (no filter). - */ - dev_info(smi->dev, "VLAN%d port mask for port %d, %08x\n", - (port + 1), port, mask); - ret = rtl8366_set_vlan(smi, (port + 1), mask, mask, 0); - if (ret) - return ret; - - dev_info(smi->dev, "VLAN%d port %d, PVID set to %d\n", - (port + 1), port, (port + 1)); - ret = rtl8366_set_pvid(smi, port, (port + 1)); - if (ret) - return ret; - } - - return rtl8366_enable_vlan(smi, true); -} -EXPORT_SYMBOL_GPL(rtl8366_init_vlan); - int rtl8366_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, struct netlink_ext_ack *extack) { diff --git a/drivers/net/dsa/rtl8366rb.c b/drivers/net/dsa/rtl8366rb.c index b930050cfd1b..a5b7d7ff8884 100644 --- a/drivers/net/dsa/rtl8366rb.c +++ b/drivers/net/dsa/rtl8366rb.c @@ -985,7 +985,7 @@ static int rtl8366rb_setup(struct dsa_switch *ds) return ret; } - ret = rtl8366_init_vlan(smi); + ret = rtl8366_reset_vlan(smi); if (ret) return ret; @@ -999,8 +999,6 @@ static int rtl8366rb_setup(struct dsa_switch *ds) return -ENODEV; } - ds->configure_vlan_while_not_filtering = false; - return 0; } From patchwork Tue Sep 28 14:41:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 514799 Delivered-To: patch@linaro.org Received: by 2002:a17:906:f46:0:0:0:0 with SMTP id h6csp5030787ejj; 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[92.34.204.253]) by smtp.gmail.com with ESMTPSA id x23sm1933462lfd.136.2021.09.28.07.44.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Sep 2021 07:44:47 -0700 (PDT) From: Linus Walleij To: Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S . Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, Linus Walleij , Mauri Sandberg , DENG Qingfang , =?utf-8?q?Alvin_=C5=A0ipraga?= Subject: [PATCH net-next 3/6 v8] net: dsa: rtl8366rb: Rewrite weird VLAN filering enablement Date: Tue, 28 Sep 2021 16:41:46 +0200 Message-Id: <20210928144149.84612-4-linus.walleij@linaro.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210928144149.84612-1-linus.walleij@linaro.org> References: <20210928144149.84612-1-linus.walleij@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org While we were defining one VLAN per port for isolating the ports the port_vlan_filtering() callback was implemented to enable a VLAN on the port + 1. This function makes no sense, not only is it incomplete as it only enables the VLAN, it doesn't do what the callback is supposed to do, which is to selectively enable and disable filtering on a certain port. Implement the correct callback: we have two registers dealing with filtering on the RTL8366RB, so we implement an ASIC-specific callback and implement filering using the register bit that makes the switch drop frames if the port is not in the VLAN member set. The DSA documentation Documentation/networking/switchdev.rst states: When the bridge has VLAN filtering enabled and a PVID is not configured on the ingress port, untagged and 802.1p tagged packets must be dropped. When the bridge has VLAN filtering enabled and a PVID exists on the ingress port, untagged and priority-tagged packets must be accepted and forwarded according to the bridge's port membership of the PVID VLAN. When the bridge has VLAN filtering disabled, the presence/lack of a PVID should not influence the packet forwarding decision. To comply with this, we add two arrays of bool in the RTL8366RB state that keeps track of if filtering and PVID is enabled or not for each port. We then add code such that whenever filtering or PVID changes, we update the filter according to the specification. Cc: Vladimir Oltean Cc: Mauri Sandberg Cc: Florian Fainelli Cc: DENG Qingfang Reviewed-by: Alvin Šipraga Signed-off-by: Linus Walleij --- ChangeLog v7->v8: - Do not keep track of the filtering state in the driver but use the core dsa_port_is_vlan_filtering() to query the state instead. - Fix some spelling mistake. - Collect Alvin's Review tag ChangeLog v6->v7: - Add comments to the register definitions. - Rewrite the code to keep track on whether filtering and PVID is enabled on each port, and use this information to selectively drop untagged and C-tagged (802.1p) frames. - Add a hook in the PVID setup to always check the filtering of untagged and C-tagged frames when changing the PVID setting. ChangeLog v5->v6: - Drop unused leftover variable "ret" ChangeLog v4->v5: - Drop the code dropping frames without VID, after Florian described that this is not expected semantics for this callback. ChangeLog v1->v4: - New patch after discovering that this weirdness of mine is causing problems. --- drivers/net/dsa/realtek-smi-core.h | 2 - drivers/net/dsa/rtl8366.c | 35 ----------- drivers/net/dsa/rtl8366rb.c | 97 +++++++++++++++++++++++++++--- 3 files changed, 90 insertions(+), 44 deletions(-) -- 2.31.1 diff --git a/drivers/net/dsa/realtek-smi-core.h b/drivers/net/dsa/realtek-smi-core.h index c8fbd7b9fd0b..214f710d7dd5 100644 --- a/drivers/net/dsa/realtek-smi-core.h +++ b/drivers/net/dsa/realtek-smi-core.h @@ -129,8 +129,6 @@ int rtl8366_set_pvid(struct realtek_smi *smi, unsigned int port, int rtl8366_enable_vlan4k(struct realtek_smi *smi, bool enable); int rtl8366_enable_vlan(struct realtek_smi *smi, bool enable); int rtl8366_reset_vlan(struct realtek_smi *smi); -int rtl8366_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, - struct netlink_ext_ack *extack); int rtl8366_vlan_add(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct netlink_ext_ack *extack); diff --git a/drivers/net/dsa/rtl8366.c b/drivers/net/dsa/rtl8366.c index 59c5bc4f7b71..0672dd56c698 100644 --- a/drivers/net/dsa/rtl8366.c +++ b/drivers/net/dsa/rtl8366.c @@ -292,41 +292,6 @@ int rtl8366_reset_vlan(struct realtek_smi *smi) } EXPORT_SYMBOL_GPL(rtl8366_reset_vlan); -int rtl8366_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, - struct netlink_ext_ack *extack) -{ - struct realtek_smi *smi = ds->priv; - struct rtl8366_vlan_4k vlan4k; - int ret; - - /* Use VLAN nr port + 1 since VLAN0 is not valid */ - if (!smi->ops->is_vlan_valid(smi, port + 1)) - return -EINVAL; - - dev_info(smi->dev, "%s filtering on port %d\n", - vlan_filtering ? "enable" : "disable", - port); - - /* TODO: - * The hardware support filter ID (FID) 0..7, I have no clue how to - * support this in the driver when the callback only says on/off. - */ - ret = smi->ops->get_vlan_4k(smi, port + 1, &vlan4k); - if (ret) - return ret; - - /* Just set the filter to FID 1 for now then */ - ret = rtl8366_set_vlan(smi, port + 1, - vlan4k.member, - vlan4k.untag, - 1); - if (ret) - return ret; - - return 0; -} -EXPORT_SYMBOL_GPL(rtl8366_vlan_filtering); - int rtl8366_vlan_add(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct netlink_ext_ack *extack) diff --git a/drivers/net/dsa/rtl8366rb.c b/drivers/net/dsa/rtl8366rb.c index a5b7d7ff8884..b565074b0462 100644 --- a/drivers/net/dsa/rtl8366rb.c +++ b/drivers/net/dsa/rtl8366rb.c @@ -143,6 +143,21 @@ #define RTL8366RB_PHY_NO_OFFSET 9 #define RTL8366RB_PHY_NO_MASK (0x1f << 9) +/* VLAN Ingress Control Register 1, one bit per port. + * bit 0 .. 5 will make the switch drop ingress frames without + * VID such as untagged or priority-tagged frames for respective + * port. + * bit 6 .. 11 will make the switch drop ingress frames carrying + * a C-tag with VID != 0 for respective port. + */ +#define RTL8366RB_VLAN_INGRESS_CTRL1_REG 0x037E +#define RTL8366RB_VLAN_INGRESS_CTRL1_DROP(port) (BIT((port)) | BIT((port) + 6)) + +/* VLAN Ingress Control Register 2, one bit per port. + * bit0 .. bit5 will make the switch drop all ingress frames with + * a VLAN classification that does not include the port is in its + * member set. + */ #define RTL8366RB_VLAN_INGRESS_CTRL2_REG 0x037f /* LED control registers */ @@ -321,9 +336,11 @@ /** * struct rtl8366rb - RTL8366RB-specific data * @max_mtu: per-port max MTU setting + * @pvid_enabled: if PVID is set for respective port */ struct rtl8366rb { unsigned int max_mtu[RTL8366RB_NUM_PORTS]; + bool pvid_enabled[RTL8366RB_NUM_PORTS]; }; static struct rtl8366_mib_counter rtl8366rb_mib_counters[] = { @@ -933,11 +950,13 @@ static int rtl8366rb_setup(struct dsa_switch *ds) if (ret) return ret; - /* Discard VLAN tagged packets if the port is not a member of - * the VLAN with which the packets is associated. - */ + /* Accept all packets by default, we enable filtering on-demand */ + ret = regmap_write(smi->map, RTL8366RB_VLAN_INGRESS_CTRL1_REG, + 0); + if (ret) + return ret; ret = regmap_write(smi->map, RTL8366RB_VLAN_INGRESS_CTRL2_REG, - RTL8366RB_PORT_ALL); + 0); if (ret) return ret; @@ -1209,6 +1228,50 @@ rtl8366rb_port_bridge_leave(struct dsa_switch *ds, int port, RTL8366RB_PORT_ISO_PORTS(port_bitmap), 0); } +/** + * rtl8366rb_drop_untagged() - make the switch drop untagged and C-tagged frames + * @smi: SMI state container + * @port: the port to drop untagged and C-tagged frames on + * @drop: whether to drop or pass untagged and C-tagged frames + */ +static int rtl8366rb_drop_untagged(struct realtek_smi *smi, int port, bool drop) +{ + return regmap_update_bits(smi->map, RTL8366RB_VLAN_INGRESS_CTRL1_REG, + RTL8366RB_VLAN_INGRESS_CTRL1_DROP(port), + drop ? RTL8366RB_VLAN_INGRESS_CTRL1_DROP(port) : 0); +} + +static int rtl8366rb_vlan_filtering(struct dsa_switch *ds, int port, + bool vlan_filtering, + struct netlink_ext_ack *extack) +{ + struct realtek_smi *smi = ds->priv; + struct rtl8366rb *rb; + int ret; + + rb = smi->chip_data; + + dev_dbg(smi->dev, "port %d: %s VLAN filtering\n", port, + vlan_filtering ? "enable" : "disable"); + + /* If the port is not in the member set, the frame will be dropped */ + ret = regmap_update_bits(smi->map, RTL8366RB_VLAN_INGRESS_CTRL2_REG, + BIT(port), vlan_filtering ? BIT(port) : 0); + if (ret) + return ret; + + /* If VLAN filtering is enabled and PVID is also enabled, we must + * not drop any untagged or C-tagged frames. If we turn off VLAN + * filtering on a port, we need to accept any frames. + */ + if (vlan_filtering) + ret = rtl8366rb_drop_untagged(smi, port, !rb->pvid_enabled[port]); + else + ret = rtl8366rb_drop_untagged(smi, port, false); + + return ret; +} + static int rtl8366rb_change_mtu(struct dsa_switch *ds, int port, int new_mtu) { struct realtek_smi *smi = ds->priv; @@ -1420,14 +1483,34 @@ static int rtl8366rb_get_mc_index(struct realtek_smi *smi, int port, int *val) static int rtl8366rb_set_mc_index(struct realtek_smi *smi, int port, int index) { + struct rtl8366rb *rb; + bool pvid_enabled; + int ret; + + rb = smi->chip_data; + pvid_enabled = !!index; + if (port >= smi->num_ports || index >= RTL8366RB_NUM_VLANS) return -EINVAL; - return regmap_update_bits(smi->map, RTL8366RB_PORT_VLAN_CTRL_REG(port), + ret = regmap_update_bits(smi->map, RTL8366RB_PORT_VLAN_CTRL_REG(port), RTL8366RB_PORT_VLAN_CTRL_MASK << RTL8366RB_PORT_VLAN_CTRL_SHIFT(port), (index & RTL8366RB_PORT_VLAN_CTRL_MASK) << RTL8366RB_PORT_VLAN_CTRL_SHIFT(port)); + if (ret) + return ret; + + rb->pvid_enabled[port] = pvid_enabled; + + /* If VLAN filtering is enabled and PVID is also enabled, we must + * not drop any untagged or C-tagged frames. Make sure to update the + * filtering setting. + */ + if (dsa_port_is_vlan_filtering(dsa_to_port(smi->ds, port))) + ret = rtl8366rb_drop_untagged(smi, port, !pvid_enabled); + + return ret; } static bool rtl8366rb_is_vlan_valid(struct realtek_smi *smi, unsigned int vlan) @@ -1437,7 +1520,7 @@ static bool rtl8366rb_is_vlan_valid(struct realtek_smi *smi, unsigned int vlan) if (smi->vlan4k_enabled) max = RTL8366RB_NUM_VIDS - 1; - if (vlan == 0 || vlan > max) + if (vlan > max) return false; return true; @@ -1594,7 +1677,7 @@ static const struct dsa_switch_ops rtl8366rb_switch_ops = { .get_sset_count = rtl8366_get_sset_count, .port_bridge_join = rtl8366rb_port_bridge_join, .port_bridge_leave = rtl8366rb_port_bridge_leave, - .port_vlan_filtering = rtl8366_vlan_filtering, + .port_vlan_filtering = rtl8366rb_vlan_filtering, .port_vlan_add = rtl8366_vlan_add, .port_vlan_del = rtl8366_vlan_del, .port_enable = rtl8366rb_port_enable, From patchwork Tue Sep 28 14:41:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 514802 Delivered-To: patch@linaro.org Received: by 2002:a17:906:f46:0:0:0:0 with SMTP id h6csp5030990ejj; Tue, 28 Sep 2021 07:45:06 -0700 (PDT) X-Google-Smtp-Source: ABdhPJw7BFHQZgd3ZZ9PU/oh5wftsNMcKyZHt3M07MjSFi10jGP9ibOjjk9dgjn/vLle/2Af8Y8x X-Received: by 2002:a17:906:ccda:: with SMTP id ot26mr873785ejb.407.1632840306163; Tue, 28 Sep 2021 07:45:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1632840306; cv=none; d=google.com; s=arc-20160816; b=eZv/Kx3xThxruAjxdwq9r+XDNkgJq8hzJpVH5I6XgFNmEHhbVTY+PVeIPF7J1h/V/I UGbsKDoGtj8tVTcPHJqOCuJ5ehVB12tcQ8GVFNdN97PaYh89Y6AVhENg4ayJ3nXGk3hi 4rI0hXLyoslXfInxR0H613ypvJGQf3J0iv83IQiSi+hD7i7qu0URD3k8fFvmVId+sz5h p02Su+hhvuwoRlCjULZoS8bUetat2MHRXpPk4MCh3YrOjJ3rcMm0q0PVWtKIcPNeUImV jJXciMIputml97bXba6ZHAMPfSQswARiYz0sGb1zQddk5EGmpefLFsC//l2ZMs6ImcGX 142A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=PIgf3DsDMzPlEkL+3qloth/cat7utuH+OdIdrgmjoIs=; b=EsraClgsawySAn+LedN+JyYqp9ZEIuskT+LnyafVcJAcUVVbZfR5AJBYA7bCtxZX8C XFcgDS+1ZusAkH7ZvEbqEnZ7Td4Jiug+xGHwluZC4BKEFzlI+kBj1j/hE4JnaJENcIn4 Bd0cJRKWtBQY+du/5RN9J8irUg7b3fd2DO0nLBwWlGpJl5YF+PIKrAVF4C0QDAgjp6Ba 4tSI2MH1gIxYPXYKSaU8nOG6Wzc2AZ+2XeoSnPNUZbLxuQdDb7i0jkbP1U2PAl2CfqsO 4TXjxTTNnmPqa1S6hiXel75RIlmEaILQw6gJb5jvn5TB/QOqtWNgYYw7fetRYbZE1W92 hK7g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=JLcmRMCc; spf=pass (google.com: domain of netdev-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=netdev-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. 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[92.34.204.253]) by smtp.gmail.com with ESMTPSA id x23sm1933462lfd.136.2021.09.28.07.44.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Sep 2021 07:44:50 -0700 (PDT) From: Linus Walleij To: Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S . Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, Linus Walleij , Mauri Sandberg , DENG Qingfang , =?utf-8?q?Alvin_=C5=A0ipraga?= Subject: [PATCH net-next 4/6 v8] net: dsa: rtl8366rb: Fix off-by-one bug Date: Tue, 28 Sep 2021 16:41:47 +0200 Message-Id: <20210928144149.84612-5-linus.walleij@linaro.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210928144149.84612-1-linus.walleij@linaro.org> References: <20210928144149.84612-1-linus.walleij@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The max VLAN number with non-4K VLAN activated is 15, and the range is 0..15. Not 16. The impact should be low since we by default have 4K VLAN and thus have 4095 VLANs to play with in this switch. There will not be a problem unless the code is rewritten to only use 16 VLANs. Fixes: d8652956cf37 ("net: dsa: realtek-smi: Add Realtek SMI driver") Cc: Mauri Sandberg Cc: DENG Qingfang Reviewed-by: Florian Fainelli Reviewed-by: Alvin Šipraga Reviewed-by: Vladimir Oltean Signed-off-by: Linus Walleij --- ChangeLog v7->v8: - Collect Florian's review tag. ChangeLog v6->v7: - Collect Alvin's and Vladimir's review tags. ChangeLog v5->v6: - No changes just resending with the rest of the patches. ChangeLog v4->v5: - Add some more text describing that this is not a critical bug. - Add Fixes tag ChangeLog v1->v4: - New patch for a bug discovered when fixing the other issues. --- drivers/net/dsa/rtl8366rb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.31.1 diff --git a/drivers/net/dsa/rtl8366rb.c b/drivers/net/dsa/rtl8366rb.c index b565074b0462..bb9d017c2f9f 100644 --- a/drivers/net/dsa/rtl8366rb.c +++ b/drivers/net/dsa/rtl8366rb.c @@ -1515,7 +1515,7 @@ static int rtl8366rb_set_mc_index(struct realtek_smi *smi, int port, int index) static bool rtl8366rb_is_vlan_valid(struct realtek_smi *smi, unsigned int vlan) { - unsigned int max = RTL8366RB_NUM_VLANS; + unsigned int max = RTL8366RB_NUM_VLANS - 1; if (smi->vlan4k_enabled) max = RTL8366RB_NUM_VIDS - 1; From patchwork Tue Sep 28 14:41:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 514801 Delivered-To: patch@linaro.org Received: by 2002:a17:906:f46:0:0:0:0 with SMTP id h6csp5030914ejj; Tue, 28 Sep 2021 07:45:02 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwcR5MCeRHLZIeDj6YNROIhbcD6LMXERS+pqJWQFctOdke1j+4czxBs+MGi1o6IQCPah/6M X-Received: by 2002:a17:906:70c5:: with SMTP id g5mr2342536ejk.63.1632840302263; Tue, 28 Sep 2021 07:45:02 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1632840302; cv=none; d=google.com; s=arc-20160816; b=i8Lfv3qH1Isq8+0RJXzy06qscf/rtQhzEsemtUy2iz5aqRJyafGeHljmWGEDEeuuEi YcWSnv/hV+eFRVGmJzfo+2bOrA+Zr8bS2uLTmz8tuFQdcEeDB596/BHzXx4uK35gp4to hjmJHTw5sFiRGap81gqcnbx38F45KRb7eAUO2/yi6xEijB6sCUARPW1Xy0P6TTXzT6dr Q8F6oaweq6++m/gg1aCDAA89SEkuTJo77s9mHhs6MK4lE3NolmgEhTil0ifszcZfH5md wRgeSRglTF3RVultcl/IaPYAI3GqOH0+FfWeIZAFf5O/Xo2tbN5VOlG3KLKxUmjfBeo5 VRYg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=SyJepoAP9gqp9xgp/GjgHi1fMuvyMC7LLl2uqf6Q+6k=; b=uNJqtgqB5ebuIdAbO6rFxJ6J9CgsAsi9oCUtZK96jAwTKn3S8lxBq50OQPEi2y954a d/0TvLQiQ3J02D3xwG28kj8oGJX8dQTF5JJwWbjA1Y7v9Shin0RwGFaz5+ZwO7JRRxdn uHiiHPg1VNY3fS1N7bh8jwlJnXopz4Kj5MXO1PmANcMbqvrkkaAstmp80ooEN152H3rl sTQh+Cdx8Vc6Ck9q5sKVD38lxOZ1AtZkm1ZXL/wJkkkrEx0H4EoRHTE8fSxKwbUlbUrq /zI3eK/5TaItuzRvn4MIjjHDjctzgivX1AhdAt//552ii73ygPdfkwIryFwLm2u5FRqv rD5A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=GVHGXwAs; spf=pass (google.com: domain of netdev-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=netdev-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. 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[92.34.204.253]) by smtp.gmail.com with ESMTPSA id x23sm1933462lfd.136.2021.09.28.07.44.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Sep 2021 07:44:52 -0700 (PDT) From: Linus Walleij To: Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S . Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, Linus Walleij , Mauri Sandberg , DENG Qingfang , =?utf-8?q?Alvin_=C5=A0ipraga?= Subject: [PATCH net-next 5/6 v8] net: dsa: rtl8366: Fix a bug in deleting VLANs Date: Tue, 28 Sep 2021 16:41:48 +0200 Message-Id: <20210928144149.84612-6-linus.walleij@linaro.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210928144149.84612-1-linus.walleij@linaro.org> References: <20210928144149.84612-1-linus.walleij@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org We were checking that the MC (member config) was != 0 for some reason, all we need to check is that the config has no ports, i.e. no members. Then it can be recycled. This must be some misunderstanding. Fixes: 4ddcaf1ebb5e ("net: dsa: rtl8366: Properly clear member config") Cc: Mauri Sandberg Cc: DENG Qingfang Reviewed-by: Alvin Šipraga Reviewed-by: Vladimir Oltean Reviewed-by: Florian Fainelli Signed-off-by: Linus Walleij --- ChangeLog v7->v8: - No changes just resending with the rest of the patches. ChangeLog v6->v7: - Collect Alvin's and Vladimir's review tags. ChangeLog v5->v6: - No changes just resending with the rest of the patches. ChangeLog v4->v5: - Collect Florians review tag - Add Fixes tag ChangeLog v1->v4: - New patch for a bug found while fixing the other issues. --- drivers/net/dsa/rtl8366.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.31.1 diff --git a/drivers/net/dsa/rtl8366.c b/drivers/net/dsa/rtl8366.c index 0672dd56c698..f815cd16ad48 100644 --- a/drivers/net/dsa/rtl8366.c +++ b/drivers/net/dsa/rtl8366.c @@ -374,7 +374,7 @@ int rtl8366_vlan_del(struct dsa_switch *ds, int port, * anymore then clear the whole member * config so it can be reused. */ - if (!vlanmc.member && vlanmc.untag) { + if (!vlanmc.member) { vlanmc.vid = 0; vlanmc.priority = 0; vlanmc.fid = 0; From patchwork Tue Sep 28 14:41:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 514800 Delivered-To: patch@linaro.org Received: by 2002:a17:906:f46:0:0:0:0 with SMTP id h6csp5030880ejj; Tue, 28 Sep 2021 07:45:00 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxuTAOkJ6iB5Pi0d+PIFoCbMkw0+I1PZi6WzpCUz+zFtiTdxKOJdmNBAUwh3A//YsqgfnnK X-Received: by 2002:a17:906:c4d:: with SMTP id t13mr6828836ejf.395.1632840300288; Tue, 28 Sep 2021 07:45:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1632840300; cv=none; d=google.com; s=arc-20160816; b=bBV2nGLpgWUmEGhjec8zRTOvQFu50sSL84kEo6IzRMQEj3K8wXjMhAVYW2PtPiiVI9 kAwKKreH8Jro/CpLyXfFHCjHDr9sBw37C1iLsMuHSy9BTAD7rCp+MM7MVx7riAfT9Icc NBrNCn8yqXUsEp4g5LGdttdl2yObBinQnLQi3yUDP8coPOkcgTmbWYf5PJ7dZk+YzjYp ObiJyUu/ofOALH2LIxptzesnPeteAusEy4C3fCl8si8IJvD8itX+rZvCIA9vbuqh33j1 Xh3i3PHFyQNWAExngyuDPdCALFbtiKytPDtpsmLoSg9Qz1eilIeGxtBVykgox9283AOb SS+Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=62y0ANGEUm3ySLIVamKt9x6B4cOMDWlyE3Xypm+3cmw=; b=oXJ7To9Cn1xVIk5QS5WDMOnxsebcTpdNFL59yFqUbO898IE43b5z+pIpyvitRvmpMb sFy0vs8ZY2Km+pyL6RhhKB549JTM00vZTr/FzHJXLVBOGGebnVA/QWBOoBzS3J1LJqdU xm0VDwPnnt1YkD1TS1QDfz+gzhoVQBwL4mHBmM65gyLOxQCNQk9T0eqCHhqyVPJKYD8N DMl9fvaTmj5zLqVeHuMH0emPkT7QeI8u2O4HpT1LzTJ4q4JixkPvL+IqAKff8k6OkvAe +ORqxLNX3rN2sDSVCSSpt6xiI2HMO5FAUOvWXD78f+xnbFP8HCZUKlyEz80dVmetTjoR zOFg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=Kmea0YCM; spf=pass (google.com: domain of netdev-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=netdev-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. 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[92.34.204.253]) by smtp.gmail.com with ESMTPSA id x23sm1933462lfd.136.2021.09.28.07.44.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Sep 2021 07:44:54 -0700 (PDT) From: Linus Walleij To: Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S . Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, Linus Walleij , Mauri Sandberg , DENG Qingfang , =?utf-8?q?Alvin_=C5=A0ipraga?= Subject: [PATCH net-next 6/6 v8] net: dsa: rtl8366: Drop and depromote pointless prints Date: Tue, 28 Sep 2021 16:41:49 +0200 Message-Id: <20210928144149.84612-7-linus.walleij@linaro.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210928144149.84612-1-linus.walleij@linaro.org> References: <20210928144149.84612-1-linus.walleij@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org We don't need a message for every VLAN association, dbg is fine. The message about adding the DSA or CPU port to a VLAN is directly misleading, this is perfectly fine. Cc: Vladimir Oltean Cc: Mauri Sandberg Cc: DENG Qingfang Reviewed-by: Alvin Šipraga Reviewed-by: Florian Fainelli Signed-off-by: Linus Walleij --- ChangeLog v7->v8: - No changes just resending with the rest of the patches. ChangeLog v6->v7: - Fix a small whitespace error in one of the debug messages. - Collect Alvin's review tag. ChangeLog v5->v6: - No changes just resending with the rest of the patches. ChangeLog v4->v5: - Collect Florians review tag. ChangeLog v1->v4: - New patch to deal with confusing messages and too talkative DSA bridge. --- drivers/net/dsa/rtl8366.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) -- 2.31.1 diff --git a/drivers/net/dsa/rtl8366.c b/drivers/net/dsa/rtl8366.c index f815cd16ad48..bdb8d8d34880 100644 --- a/drivers/net/dsa/rtl8366.c +++ b/drivers/net/dsa/rtl8366.c @@ -318,12 +318,9 @@ int rtl8366_vlan_add(struct dsa_switch *ds, int port, return ret; } - dev_info(smi->dev, "add VLAN %d on port %d, %s, %s\n", - vlan->vid, port, untagged ? "untagged" : "tagged", - pvid ? " PVID" : "no PVID"); - - if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port)) - dev_err(smi->dev, "port is DSA or CPU port\n"); + dev_dbg(smi->dev, "add VLAN %d on port %d, %s, %s\n", + vlan->vid, port, untagged ? "untagged" : "tagged", + pvid ? "PVID" : "no PVID"); member |= BIT(port); @@ -356,7 +353,7 @@ int rtl8366_vlan_del(struct dsa_switch *ds, int port, struct realtek_smi *smi = ds->priv; int ret, i; - dev_info(smi->dev, "del VLAN %04x on port %d\n", vlan->vid, port); + dev_dbg(smi->dev, "del VLAN %d on port %d\n", vlan->vid, port); for (i = 0; i < smi->num_vlan_mc; i++) { struct rtl8366_vlan_mc vlanmc;