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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , linux-kernel@vger.kernel.org Subject: [PATCH net-next v2 3/7] net: dsa: vsc73xx: add port_stp_state_set function Date: Sun, 25 Jun 2023 13:53:38 +0200 Message-Id: <20230625115343.1603330-3-paweldembicki@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230625115343.1603330-1-paweldembicki@gmail.com> References: <20230625115343.1603330-1-paweldembicki@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1769675609845166303?= X-GMAIL-MSGID: =?utf-8?q?1769675609845166303?= This isn't fully functional implementation of 802.1D, but port_stp_state_set is required for future tag8021q operations. This implementation handle properly all states, but vsc 73xx don't forward STP packets. Reviewed-by: Linus Walleij Signed-off-by: Pawel Dembicki --- v2: - fix kdoc drivers/net/dsa/vitesse-vsc73xx-core.c | 51 +++++++++++++++++++++++--- drivers/net/dsa/vitesse-vsc73xx.h | 2 + 2 files changed, 47 insertions(+), 6 deletions(-) diff --git a/drivers/net/dsa/vitesse-vsc73xx-core.c b/drivers/net/dsa/vitesse-vsc73xx-core.c index 221672b9e17f..f123ce2ed244 100644 --- a/drivers/net/dsa/vitesse-vsc73xx-core.c +++ b/drivers/net/dsa/vitesse-vsc73xx-core.c @@ -164,6 +164,10 @@ #define VSC73XX_AGENCTRL 0xf0 #define VSC73XX_CAPRST 0xff +#define VSC73XX_SRCMASKS_CPU_COPY BIT(27) +#define VSC73XX_SRCMASKS_MIRROR BIT(26) +#define VSC73XX_SRCMASKS_PORTS_MASK GENMASK(7, 0) + #define VSC73XX_MACACCESS_CPU_COPY BIT(14) #define VSC73XX_MACACCESS_FWD_KILL BIT(13) #define VSC73XX_MACACCESS_IGNORE_VLAN BIT(12) @@ -620,15 +624,17 @@ static int vsc73xx_setup(struct dsa_switch *ds) vsc73xx_write(vsc, VSC73XX_BLOCK_SYSTEM, 0, VSC73XX_GMIIDELAY, VSC73XX_GMIIDELAY_GMII0_GTXDELAY_2_0_NS | VSC73XX_GMIIDELAY_GMII0_RXDELAY_2_0_NS); - /* Enable reception of frames on all ports */ - vsc73xx_write(vsc, VSC73XX_BLOCK_ANALYZER, 0, VSC73XX_RECVMASK, - 0x5f); /* IP multicast flood mask (table 144) */ vsc73xx_write(vsc, VSC73XX_BLOCK_ANALYZER, 0, VSC73XX_IFLODMSK, 0xff); mdelay(50); + /*configure forward map to CPU <-> port only*/ + for (i = 0; i < vsc->ds->num_ports; i++) + vsc->forward_map[i] = VSC73XX_SRCMASKS_PORTS_MASK & BIT(CPU_PORT); + vsc->forward_map[CPU_PORT] = VSC73XX_SRCMASKS_PORTS_MASK & ~BIT(CPU_PORT); + /* Release reset from the internal PHYs */ vsc73xx_write(vsc, VSC73XX_BLOCK_SYSTEM, 0, VSC73XX_GLORESET, VSC73XX_GLORESET_PHY_RESET); @@ -871,9 +877,6 @@ static void vsc73xx_phylink_mac_link_up(struct dsa_switch *ds, int port, if (duplex == DUPLEX_FULL) val |= VSC73XX_MAC_CFG_FDX; - /* Enable port (forwarding) in the receieve mask */ - vsc73xx_update_bits(vsc, VSC73XX_BLOCK_ANALYZER, 0, - VSC73XX_RECVMASK, BIT(port), BIT(port)); vsc73xx_adjust_enable_port(vsc, port, val); } @@ -1040,6 +1043,41 @@ static int vsc73xx_get_max_mtu(struct dsa_switch *ds, int port) return 9600; } +static void vsc73xx_port_stp_state_set(struct dsa_switch *ds, int port, + u8 state) +{ + struct vsc73xx *vsc = ds->priv; + /* FIXME: STP frames isn't forwarded at this moment. BPDU frames are + * forwarded only from to PI/SI interface. For more info see chapter + * 2.7.1 (CPU Forwarding) in datasheet. + * This function is required for tag8021q operations. + */ + + if (state == BR_STATE_BLOCKING) + vsc73xx_update_bits(vsc, VSC73XX_BLOCK_ANALYZER, 0, + VSC73XX_RECVMASK, BIT(port), 0); + else + vsc73xx_update_bits(vsc, VSC73XX_BLOCK_ANALYZER, 0, + VSC73XX_RECVMASK, BIT(port), BIT(port)); + + if (state == BR_STATE_LEARNING || state == BR_STATE_FORWARDING) + vsc73xx_update_bits(vsc, VSC73XX_BLOCK_ANALYZER, 0, + VSC73XX_LEARNMASK, BIT(port), BIT(port)); + else + vsc73xx_update_bits(vsc, VSC73XX_BLOCK_ANALYZER, 0, + VSC73XX_LEARNMASK, BIT(port), 0); + + if (state == BR_STATE_FORWARDING) + vsc73xx_update_bits(vsc, VSC73XX_BLOCK_ANALYZER, 0, + VSC73XX_SRCMASKS + port, + VSC73XX_SRCMASKS_PORTS_MASK, + vsc->forward_map[port]); + else + vsc73xx_update_bits(vsc, VSC73XX_BLOCK_ANALYZER, 0, + VSC73XX_SRCMASKS + port, + VSC73XX_SRCMASKS_PORTS_MASK, 0); +} + static const struct dsa_switch_ops vsc73xx_ds_ops = { .get_tag_protocol = vsc73xx_get_tag_protocol, .setup = vsc73xx_setup, @@ -1056,6 +1094,7 @@ static const struct dsa_switch_ops vsc73xx_ds_ops = { .port_disable = vsc73xx_port_disable, .port_change_mtu = vsc73xx_change_mtu, .port_max_mtu = vsc73xx_get_max_mtu, + .port_stp_state_set = vsc73xx_port_stp_state_set, }; static int vsc73xx_gpio_get(struct gpio_chip *chip, unsigned int offset) diff --git a/drivers/net/dsa/vitesse-vsc73xx.h b/drivers/net/dsa/vitesse-vsc73xx.h index 30b1f0a36566..c4d5398edeeb 100644 --- a/drivers/net/dsa/vitesse-vsc73xx.h +++ b/drivers/net/dsa/vitesse-vsc73xx.h @@ -5,6 +5,7 @@ /** * struct vsc73xx - VSC73xx state container + * @forward_map: Forward table cache */ struct vsc73xx { struct device *dev; @@ -15,6 +16,7 @@ struct vsc73xx { u8 addr[ETH_ALEN]; const struct vsc73xx_ops *ops; void *priv; + u8 forward_map[8]; }; struct vsc73xx_ops {