From patchwork Wed Dec 13 10:15:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yanteng Si X-Patchwork-Id: 13490621 X-Patchwork-Delegate: kuba@kernel.org Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 7211411B for ; Wed, 13 Dec 2023 02:15:10 -0800 (PST) Received: from loongson.cn (unknown [112.20.109.254]) by gateway (Coremail) with SMTP id _____8DxyegrhHllwKEAAA--.3875S3; Wed, 13 Dec 2023 18:15:07 +0800 (CST) Received: from localhost.localdomain (unknown [112.20.109.254]) by localhost.localdomain (Coremail) with SMTP id AQAAf8CxXeEnhHllQjQCAA--.14860S3; Wed, 13 Dec 2023 18:15:04 +0800 (CST) From: Yanteng Si To: andrew@lunn.ch, hkallweit1@gmail.com, peppe.cavallaro@st.com, alexandre.torgue@foss.st.com, joabreu@synopsys.com Cc: Yanteng Si , fancer.lancer@gmail.com, Jose.Abreu@synopsys.com, chenhuacai@loongson.cn, linux@armlinux.org.uk, guyinggang@loongson.cn, netdev@vger.kernel.org, loongarch@lists.linux.dev, chris.chenfeiyang@gmail.com Subject: [PATCH v6 8/9] net: stmmac: dwmac-loongson: Disable flow control for GMAC Date: Wed, 13 Dec 2023 18:15:01 +0800 Message-Id: X-Mailer: git-send-email 2.31.4 In-Reply-To: References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: AQAAf8CxXeEnhHllQjQCAA--.14860S3 X-CM-SenderInfo: pvl1t0pwhqwqxorr0wxvrqhubq/ X-Coremail-Antispam: 1Uk129KBj93XoW7ArWkuF1rXF43JF1ftw4rCrX_yoW8KF1Dpw srZa409r9rKF17Jan5Aw4kZFy5Wa47KFW7uayIkwsa9an2k34qqr1YqFWjyF17urWDWFWa qr1UCr1UCFnxJrbCm3ZEXasCq-sJn29KB7ZKAUJUUUU3529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUBmb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Cr0_Gr1UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAF wI0_Gr1j6F4UJwAaw2AFwI0_JF0_Jw1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2 xF0cIa020Ex4CE44I27wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_ ZF0_GryDMcIj6I8E87Iv67AKxVWxJVW8Jr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48Icx kI7VAKI48JMxkF7I0En4kS14v26r126r1DMxAIw28IcxkI7VAKI48JMxC20s026xCaFVCj c4AY6r1j6r4UMxCIbckI1I0E14v26r126r1DMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxV Cjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY 6xIIjxv20xvE14v26F1j6w1UMIIF0xvE2Ix0cI8IcVCY1x0267AKxVWxJVW8Jr1lIxAIcV CF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26F4j6r4UJwCI42IY6I8E87Iv 6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjxUxNeODUUUU X-Patchwork-Delegate: kuba@kernel.org Loongson GMAC does not support Flow Control feature. Set flags to disable it. Signed-off-by: Yanteng Si Signed-off-by: Feiyang Chen Signed-off-by: Yinggang Gu --- drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 2 ++ drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 +++--- include/linux/stmmac.h | 1 + 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c index 9e4953c7e4e0..77c9bcb66a8e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c @@ -160,6 +160,8 @@ static int loongson_gmac_config(struct pci_dev *pdev, break; } + plat->flags |= FIELD_PREP(STMMAC_FLAG_DISABLE_FLOW_CONTROL, 1); + return ret; } diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 9764d2ab7e46..d94f61742772 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1236,9 +1236,9 @@ static int stmmac_phy_setup(struct stmmac_priv *priv) xpcs_get_interfaces(priv->hw->xpcs, priv->phylink_config.supported_interfaces); - priv->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | - MAC_10FD | MAC_100FD | - MAC_1000FD; + priv->phylink_config.mac_capabilities = MAC_10FD | MAC_100FD | MAC_1000FD; + if (!FIELD_GET(STMMAC_FLAG_DISABLE_FLOW_CONTROL, priv->plat->flags)) + priv->phylink_config.mac_capabilities |= MAC_ASYM_PAUSE | MAC_SYM_PAUSE; stmmac_set_half_duplex(priv); diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 067030cdb60f..5ece92e4d8c3 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -224,6 +224,7 @@ struct dwmac4_addrs { #define STMMAC_FLAG_HAS_LGMAC BIT(13) #define STMMAC_FLAG_DISABLE_HALF_DUPLEX BIT(14) #define STMMAC_FLAG_DISABLE_FORCE_1000 BIT(15) +#define STMMAC_FLAG_DISABLE_FLOW_CONTROL BIT(16) struct plat_stmmacenet_data { int bus_id;