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d="scan'208";a="117977918" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 22 Apr 2021 02:43:55 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Thu, 22 Apr 2021 02:43:54 -0700 Received: from CHE-LT-I21427LX.microchip.com (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2176.2 via Frontend Transport; Thu, 22 Apr 2021 02:43:48 -0700 From: Prasanna Vengateshan To: , , , CC: , , , , , , , , Subject: [PATCH v2 net-next 7/9] net: dsa: microchip: add support for port mirror operations Date: Thu, 22 Apr 2021 15:12:55 +0530 Message-ID: <20210422094257.1641396-8-prasanna.vengateshan@microchip.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210422094257.1641396-1-prasanna.vengateshan@microchip.com> References: <20210422094257.1641396-1-prasanna.vengateshan@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Added support for port_mirror_add() and port_mirror_del operations Signed-off-by: Prasanna Vengateshan --- drivers/net/dsa/microchip/lan937x_main.c | 50 ++++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/drivers/net/dsa/microchip/lan937x_main.c b/drivers/net/dsa/microchip/lan937x_main.c index 573d2dd906f5..bfce5098ea69 100644 --- a/drivers/net/dsa/microchip/lan937x_main.c +++ b/drivers/net/dsa/microchip/lan937x_main.c @@ -128,6 +128,54 @@ static void lan937x_port_stp_state_set(struct dsa_switch *ds, int port, mutex_unlock(&dev->dev_mutex); } +static int lan937x_port_mirror_add(struct dsa_switch *ds, int port, + struct dsa_mall_mirror_tc_entry *mirror, + bool ingress) +{ + struct ksz_device *dev = ds->priv; + int rc; + + if (ingress) + rc = lan937x_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_RX, true); + else + rc = lan937x_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_TX, true); + + if (rc < 0) + return rc; + + rc = lan937x_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_SNIFFER, false); + if (rc < 0) + return rc; + + /* configure mirror port */ + rc = lan937x_port_cfg(dev, mirror->to_local_port, P_MIRROR_CTRL, + PORT_MIRROR_SNIFFER, true); + if (rc < 0) + return rc; + + rc = lan937x_cfg(dev, S_MIRROR_CTRL, SW_MIRROR_RX_TX, false); + + return rc; +} + +static void lan937x_port_mirror_del(struct dsa_switch *ds, int port, + struct dsa_mall_mirror_tc_entry *mirror) +{ + struct ksz_device *dev = ds->priv; + u8 data; + + if (mirror->ingress) + lan937x_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_RX, false); + else + lan937x_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_TX, false); + + lan937x_pread8(dev, port, P_MIRROR_CTRL, &data); + + if (!(data & (PORT_MIRROR_RX | PORT_MIRROR_TX))) + lan937x_port_cfg(dev, mirror->to_local_port, P_MIRROR_CTRL, + PORT_MIRROR_SNIFFER, false); +} + static phy_interface_t lan937x_get_interface(struct ksz_device *dev, int port) { phy_interface_t interface; @@ -396,6 +444,8 @@ const struct dsa_switch_ops lan937x_switch_ops = { .port_bridge_flags = lan937x_port_bridge_flags, .port_stp_state_set = lan937x_port_stp_state_set, .port_fast_age = ksz_port_fast_age, + .port_mirror_add = lan937x_port_mirror_add, + .port_mirror_del = lan937x_port_mirror_del, .port_max_mtu = lan937x_get_max_mtu, .port_change_mtu = lan937x_change_mtu, .phylink_validate = lan937x_phylink_validate, -- 2.27.0