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Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.3 Subject: Re: [PATCH v3 net-next 3/8] net: ethernet: mtk_wed: introduce wed mcu support Content-Language: en-US To: Lorenzo Bianconi , netdev@vger.kernel.org Cc: nbd@nbd.name, john@phrozen.org, sean.wang@mediatek.com, Mark-MC.Lee@mediatek.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, matthias.bgg@gmail.com, linux-mediatek@lists.infradead.org, lorenzo.bianconi@redhat.com, Bo.Jiao@mediatek.com, sujuan.chen@mediatek.com, ryder.Lee@mediatek.com, evelyn.tsai@mediatek.com, devicetree@vger.kernel.org, robh+dt@kernel.org, daniel@makrotopia.org, krzysztof.kozlowski+dt@linaro.org References: <01c82e3783373e04b609d60075ef7ecf71d0d24d.1667466887.git.lorenzo@kernel.org> From: AngeloGioacchino Del Regno In-Reply-To: <01c82e3783373e04b609d60075ef7ecf71d0d24d.1667466887.git.lorenzo@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221103_072329_422447_7F458026 X-CRM114-Status: GOOD ( 22.82 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Il 03/11/22 10:28, Lorenzo Bianconi ha scritto: > From: Sujuan Chen > > Introduce WED mcu support used to configure WED WO chip. > This is a preliminary patch in order to add RX Wireless > Ethernet Dispatch available on MT7986 SoC. > > Tested-by: Daniel Golle > Co-developed-by: Lorenzo Bianconi > Signed-off-by: Lorenzo Bianconi > Signed-off-by: Sujuan Chen > --- > drivers/net/ethernet/mediatek/Makefile | 2 +- > drivers/net/ethernet/mediatek/mtk_wed_mcu.c | 364 +++++++++++++++++++ > drivers/net/ethernet/mediatek/mtk_wed_regs.h | 1 + > drivers/net/ethernet/mediatek/mtk_wed_wo.h | 152 ++++++++ > include/linux/soc/mediatek/mtk_wed.h | 29 ++ > 5 files changed, 547 insertions(+), 1 deletion(-) > create mode 100644 drivers/net/ethernet/mediatek/mtk_wed_mcu.c > create mode 100644 drivers/net/ethernet/mediatek/mtk_wed_wo.h > > diff --git a/drivers/net/ethernet/mediatek/Makefile b/drivers/net/ethernet/mediatek/Makefile > index 45ba0970504a..d4bdefa77159 100644 > --- a/drivers/net/ethernet/mediatek/Makefile > +++ b/drivers/net/ethernet/mediatek/Makefile > @@ -5,7 +5,7 @@ > > obj-$(CONFIG_NET_MEDIATEK_SOC) += mtk_eth.o > mtk_eth-y := mtk_eth_soc.o mtk_sgmii.o mtk_eth_path.o mtk_ppe.o mtk_ppe_debugfs.o mtk_ppe_offload.o > -mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed.o > +mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed.o mtk_wed_mcu.o > ifdef CONFIG_DEBUG_FS > mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed_debugfs.o > endif > diff --git a/drivers/net/ethernet/mediatek/mtk_wed_mcu.c b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c > new file mode 100644 > index 000000000000..20987eecfb52 > --- /dev/null > +++ b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c ..snip.. > + > +int mtk_wed_mcu_init(struct mtk_wed_wo *wo) > +{ > + u32 val; > + int ret; > + > + skb_queue_head_init(&wo->mcu.res_q); > + init_waitqueue_head(&wo->mcu.wait); > + mutex_init(&wo->mcu.mutex); > + > + ret = mtk_wed_mcu_load_firmware(wo); > + if (ret) > + return ret; > + > + do { > + /* get dummy cr */ > + val = wed_r32(wo->hw->wed_dev, > + MTK_WED_SCR0 + 4 * MTK_WED_DUMMY_CR_FWDL); > + } while (val && !time_after(jiffies, jiffies + MTK_FW_DL_TIMEOUT)); Here you can use readx_poll_timeout() instead: please do so. > + > + return val ? -EBUSY : 0; > +} > + > +MODULE_FIRMWARE(MT7986_FIRMWARE_WO0); > +MODULE_FIRMWARE(MT7986_FIRMWARE_WO1); > diff --git a/drivers/net/ethernet/mediatek/mtk_wed_regs.h b/drivers/net/ethernet/mediatek/mtk_wed_regs.h > index e270fb336143..c940b3bb215b 100644 > --- a/drivers/net/ethernet/mediatek/mtk_wed_regs.h > +++ b/drivers/net/ethernet/mediatek/mtk_wed_regs.h > @@ -152,6 +152,7 @@ struct mtk_wdma_desc { > > #define MTK_WED_RING_RX(_n) (0x400 + (_n) * 0x10) > > +#define MTK_WED_SCR0 0x3c0 > #define MTK_WED_WPDMA_INT_TRIGGER 0x504 > #define MTK_WED_WPDMA_INT_TRIGGER_RX_DONE BIT(1) > #define MTK_WED_WPDMA_INT_TRIGGER_TX_DONE GENMASK(5, 4) > diff --git a/drivers/net/ethernet/mediatek/mtk_wed_wo.h b/drivers/net/ethernet/mediatek/mtk_wed_wo.h > new file mode 100644 > index 000000000000..2ef3ccdec5bf > --- /dev/null > +++ b/drivers/net/ethernet/mediatek/mtk_wed_wo.h > @@ -0,0 +1,152 @@ ..snip.. > + > +#define MTK_WO_MCU_CFG_LS_BASE 0 /* XXX: 0x15194000 */ Since that definition is zero, you can safely remove it: like so, the ones following will be a bit more readable. > +#define MTK_WO_MCU_CFG_LS_HW_VER_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x000) > +#define MTK_WO_MCU_CFG_LS_FW_VER_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x004) > +#define MTK_WO_MCU_CFG_LS_CFG_DBG1_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x00c) > +#define MTK_WO_MCU_CFG_LS_CFG_DBG2_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x010) > +#define MTK_WO_MCU_CFG_LS_WF_MCCR_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x014) > +#define MTK_WO_MCU_CFG_LS_WF_MCCR_SET_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x018) > +#define MTK_WO_MCU_CFG_LS_WF_MCCR_CLR_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x01c) > +#define MTK_WO_MCU_CFG_LS_WF_MCU_CFG_WM_WA_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x050) > +#define MTK_WO_MCU_CFG_LS_WM_BOOT_ADDR_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x060) > +#define MTK_WO_MCU_CFG_LS_WA_BOOT_ADDR_ADDR (MTK_WO_MCU_CFG_LS_BASE + 0x064) ..snip.. > + > +static inline int > +mtk_wed_mcu_check_msg(struct mtk_wed_wo *wo, struct sk_buff *skb) > +{ > + struct mtk_wed_mcu_hdr *hdr = (struct mtk_wed_mcu_hdr *)skb->data; > + > + if (hdr->version) if (hdr->version || skb->len < sizeof(*hdr) || skb->len != le16_to_cpu(hdr->length)) return -EINVAL; > + return -EINVAL; > + > + if (skb->len < sizeof(*hdr)) > + return -EINVAL; > + > + if (skb->len != le16_to_cpu(hdr->length)) > + return -EINVAL; > + > + return 0; > +} > + Regards, Angelo