From patchwork Fri May 17 07:52:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666684 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 90FF61755A; Fri, 17 May 2024 07:54:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932457; cv=none; b=tbQLoxdnIa1k/mAIF+/2TywfqrstZ/Q5EzYuf7S9nBkhnR6GMIY26HMWewpm6fmoGz8zp29g935mVIEqlY/sH2Npm4NU1FaG0+O9rIYHIVo7WTS4V79Uam463N477nPlbv6yKmwX/xEGZwZMrXEr1S9qPr3DUfV19UOlVYB8G48= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932457; c=relaxed/simple; bh=NNMvUdhH+0J3P7CxFcskUfVZCIovjuiMu3PAYey51fw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=EX8BsjDOHzAt6O0qPCcmqbXV7k0ElTp7uCfBuKIdobGPbLijicciLc53J/yJ7WnuPc9B6pv7p148nvCUMOZ1fWh12EW1ylSb+PIzv8SNI+byM6nC4KA2eLVwVLGpfiX73JaNM0mnFSOSULTynTo7q1dOTQRLATqeziclg3mCghE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7rdP932158101, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7rdP932158101 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:53:39 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:53:35 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:53:34 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 01/13] rtase: Add pci table supported in this module Date: Fri, 17 May 2024 15:52:50 +0800 Message-ID: <20240517075302.7653-2-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36505.realtek.com.tw (172.21.6.25) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Add pci table supported in this module, and implement pci_driver function to initialize this driver, remove this driver, or shutdown this driver. Signed-off-by: Justin Lai --- drivers/net/ethernet/realtek/rtase/rtase.h | 326 +++++++++ .../net/ethernet/realtek/rtase/rtase_main.c | 639 ++++++++++++++++++ 2 files changed, 965 insertions(+) create mode 100644 drivers/net/ethernet/realtek/rtase/rtase.h create mode 100644 drivers/net/ethernet/realtek/rtase/rtase_main.c diff --git a/drivers/net/ethernet/realtek/rtase/rtase.h b/drivers/net/ethernet/realtek/rtase/rtase.h new file mode 100644 index 000000000000..22f895979a7c --- /dev/null +++ b/drivers/net/ethernet/realtek/rtase/rtase.h @@ -0,0 +1,326 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* + * rtase is the Linux device driver released for Realtek Automotive Switch + * controllers with PCI-Express interface. + * + * Copyright(c) 2024 Realtek Semiconductor Corp. + */ + +#ifndef _RTASE_H_ +#define _RTASE_H_ + +#define RTASE_HW_VER_MASK 0x7C800000 + +#define RTASE_RX_DMA_BURST_256 4 +#define RTASE_TX_DMA_BURST_UNLIMITED 7 +#define RTASE_RX_BUF_SIZE (PAGE_SIZE - \ + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) +#define RTASE_MAX_JUMBO_SIZE (RTASE_RX_BUF_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN) + +/* 3 means InterFrameGap = the shortest one */ +#define RTASE_INTERFRAMEGAP 0x03 + +#define RTASE_REGS_SIZE 256 +#define RTASE_PCI_REGS_SIZE 0x100 + +#define RTASE_MULTICAST_FILTER_MASK GENMASK(30, 26) + +#define RTASE_VLAN_FILTER_ENTRY_NUM 32 +#define RTASE_NUM_TX_QUEUE 8 +#define RTASE_NUM_RX_QUEUE 4 + +#define RTASE_TXQ_CTRL 1 +#define RTASE_FUNC_TXQ_NUM 1 +#define RTASE_FUNC_RXQ_NUM 1 +#define RTASE_INTERRUPT_NUM 1 + +#define RTASE_MITI_TIME_COUNT_MASK GENMASK(3, 0) +#define RTASE_MITI_TIME_UNIT_MASK GENMASK(7, 4) +#define RTASE_MITI_DEFAULT_TIME 128 +#define RTASE_MITI_MAX_TIME 491520 +#define RTASE_MITI_PKT_NUM_COUNT_MASK GENMASK(11, 8) +#define RTASE_MITI_PKT_NUM_UNIT_MASK GENMASK(13, 12) +#define RTASE_MITI_DEFAULT_PKT_NUM 64 +#define RTASE_MITI_MAX_PKT_NUM_IDX 3 +#define RTASE_MITI_MAX_PKT_NUM_UNIT 16 +#define RTASE_MITI_MAX_PKT_NUM 240 +#define RTASE_MITI_COUNT_BIT_NUM 4 + +#define RTASE_NUM_MSIX 4 + +#define RTASE_DWORD_MOD 16 + +/*****************************************************************************/ +enum rtase_registers { + RTASE_MAC0 = 0x0000, + RTASE_MAC4 = 0x0004, + RTASE_MAR0 = 0x0008, + RTASE_MAR1 = 0x000C, + RTASE_DTCCR0 = 0x0010, + RTASE_DTCCR4 = 0x0014, +#define RTASE_COUNTER_RESET BIT(0) +#define RTASE_COUNTER_DUMP BIT(3) + + RTASE_FCR = 0x0018, +#define RTASE_FCR_RXQ_MASK GENMASK(5, 4) + + RTASE_LBK_CTRL = 0x001A, +#define RTASE_LBK_ATLD BIT(1) +#define RTASE_LBK_CLR BIT(0) + + RTASE_TX_DESC_ADDR0 = 0x0020, + RTASE_TX_DESC_ADDR4 = 0x0024, + RTASE_TX_DESC_COMMAND = 0x0028, +#define RTASE_TX_DESC_CMD_CS BIT(15) +#define RTASE_TX_DESC_CMD_WE BIT(14) + + RTASE_BOOT_CTL = 0x6004, + RTASE_CLKSW_SET = 0x6018, + + RTASE_CHIP_CMD = 0x0037, +#define RTASE_STOP_REQ BIT(7) +#define RTASE_STOP_REQ_DONE BIT(6) +#define RTASE_RE BIT(3) +#define RTASE_TE BIT(2) + + RTASE_IMR0 = 0x0038, + RTASE_ISR0 = 0x003C, +#define RTASE_TOK7 BIT(30) +#define RTASE_TOK6 BIT(28) +#define RTASE_TOK5 BIT(26) +#define RTASE_TOK4 BIT(24) +#define RTASE_FOVW BIT(6) +#define RTASE_RDU BIT(4) +#define RTASE_TOK BIT(2) +#define RTASE_ROK BIT(0) + + RTASE_IMR1 = 0x0800, + RTASE_ISR1 = 0x0802, +#define RTASE_Q_TOK BIT(4) +#define RTASE_Q_RDU BIT(1) +#define RTASE_Q_ROK BIT(0) + + RTASE_EPHY_ISR = 0x6014, + RTASE_EPHY_IMR = 0x6016, + + RTASE_TX_CONFIG_0 = 0x0040, +#define RTASE_TX_INTER_FRAME_GAP_MASK GENMASK(25, 24) + /* DMA burst value (0-7) is shift this many bits */ +#define RTASE_TX_DMA_MASK GENMASK(10, 8) + + RTASE_RX_CONFIG_0 = 0x0044, +#define RTASE_RX_SINGLE_FETCH BIT(14) +#define RTASE_RX_SINGLE_TAG BIT(13) +#define RTASE_RX_MX_DMA_MASK GENMASK(10, 8) +#define RTASE_ACPT_FLOW BIT(7) +#define RTASE_ACCEPT_ERR BIT(5) +#define RTASE_ACCEPT_RUNT BIT(4) +#define RTASE_ACCEPT_BROADCAST BIT(3) +#define RTASE_ACCEPT_MULTICAST BIT(2) +#define RTASE_ACCEPT_MYPHYS BIT(1) +#define RTASE_ACCEPT_ALLPHYS BIT(0) +#define RTASE_ACCEPT_MASK (RTASE_ACPT_FLOW | RTASE_ACCEPT_ERR | \ + RTASE_ACCEPT_RUNT | RTASE_ACCEPT_BROADCAST | \ + RTASE_ACCEPT_MULTICAST | RTASE_ACCEPT_MYPHYS | \ + RTASE_ACCEPT_ALLPHYS) + + RTASE_RX_CONFIG_1 = 0x0046, +#define RTASE_RX_MAX_FETCH_DESC_MASK GENMASK(15, 11) +#define RTASE_RX_NEW_DESC_FORMAT_EN BIT(8) +#define RTASE_OUTER_VLAN_DETAG_EN BIT(7) +#define RTASE_INNER_VLAN_DETAG_EN BIT(6) +#define RTASE_PCIE_NEW_FLOW BIT(2) +#define RTASE_PCIE_RELOAD_EN BIT(0) + + RTASE_EEM = 0x0050, +#define RTASE_EEM_UNLOCK 0xC0 + + RTASE_TDFNR = 0x0057, + RTASE_TPPOLL = 0x0090, + RTASE_PDR = 0x00B0, + RTASE_FIFOR = 0x00D3, +#define RTASE_TX_FIFO_EMPTY BIT(5) +#define RTASE_RX_FIFO_EMPTY BIT(4) + + RTASE_RMS = 0x00DA, + RTASE_CPLUS_CMD = 0x00E0, +#define RTASE_FORCE_RXFLOW_EN BIT(11) +#define RTASE_FORCE_TXFLOW_EN BIT(10) +#define RTASE_RX_CHKSUM BIT(5) + + RTASE_Q0_RX_DESC_ADDR0 = 0x00E4, + RTASE_Q0_RX_DESC_ADDR4 = 0x00E8, + RTASE_Q1_RX_DESC_ADDR0 = 0x4000, + RTASE_Q1_RX_DESC_ADDR4 = 0x4004, + RTASE_MTPS = 0x00EC, +#define RTASE_TAG_NUM_SEL_MASK GENMASK(10, 8) + + RTASE_MISC = 0x00F2, +#define RTASE_RX_DV_GATE_EN BIT(3) + + RTASE_TFUN_CTRL = 0x0400, +#define RTASE_TX_NEW_DESC_FORMAT_EN BIT(0) + + RTASE_TX_CONFIG_1 = 0x203E, +#define RTASE_TC_MODE_MASK GENMASK(11, 10) + + RTASE_TOKSEL = 0x2046, + RTASE_RFIFONFULL = 0x4406, + RTASE_INT_MITI_TX = 0x0A00, + RTASE_INT_MITI_RX = 0x0A80, + + RTASE_VLAN_ENTRY_0 = 0xAC80, +}; + +enum rtase_desc_status_bit { + RTASE_DESC_OWN = BIT(31), /* Descriptor is owned by NIC */ + RTASE_RING_END = BIT(30), /* End of descriptor ring */ +}; + +enum rtase_sw_flag_content { + RTASE_SWF_MSI_ENABLED = BIT(1), + RTASE_SWF_MSIX_ENABLED = BIT(2), +}; + +#define RSVD_MASK 0x3FFFC000 + +struct rtase_tx_desc { + __le32 opts1; + __le32 opts2; + __le64 addr; + __le32 opts3; + __le32 reserved1; + __le32 reserved2; + __le32 reserved3; +} __packed; + +/*------ offset 0 of tx descriptor ------*/ +#define RTASE_TX_FIRST_FRAG BIT(29) /* Tx First segment of a packet */ +#define RTASE_TX_LAST_FRAG BIT(28) /* Tx Final segment of a packet */ +#define RTASE_GIANT_SEND_V4 BIT(26) /* TCP Giant Send Offload V4 (GSOv4) */ +#define RTASE_GIANT_SEND_V6 BIT(25) /* TCP Giant Send Offload V6 (GSOv6) */ +#define RTASE_TX_VLAN_TAG BIT(17) /* Add VLAN tag */ + +/*------ offset 4 of tx descriptor ------*/ +#define RTASE_TX_UDPCS_C BIT(31) /* Calculate UDP/IP checksum */ +#define RTASE_TX_TCPCS_C BIT(30) /* Calculate TCP/IP checksum */ +#define RTASE_TX_IPCS_C BIT(29) /* Calculate IP checksum */ +#define RTASE_TX_IPV6F_C BIT(28) /* Indicate it is an IPv6 packet */ + +union rtase_rx_desc { + struct { + __le64 header_buf_addr; + __le32 reserved1; + __le32 opts_header_len; + __le64 addr; + __le32 reserved2; + __le32 opts1; + } __packed desc_cmd; + + struct { + __le32 reserved1; + __le32 reserved2; + __le32 rss; + __le32 opts4; + __le32 reserved3; + __le32 opts3; + __le32 opts2; + __le32 opts1; + } __packed desc_status; +} __packed; + +/*------ offset 28 of rx descriptor ------*/ +#define RTASE_RX_FIRST_FRAG BIT(25) /* Rx First segment of a packet */ +#define RTASE_RX_LAST_FRAG BIT(24) /* Rx Final segment of a packet */ +#define RTASE_RX_RES BIT(20) +#define RTASE_RX_RUNT BIT(19) +#define RTASE_RX_RWT BIT(18) +#define RTASE_RX_CRC BIT(16) +#define RTASE_RX_V6F BIT(31) +#define RTASE_RX_V4F BIT(30) +#define RTASE_RX_UDPT BIT(29) +#define RTASE_RX_TCPT BIT(28) +#define RTASE_RX_IPF BIT(26) /* IP checksum failed */ +#define RTASE_RX_UDPF BIT(25) /* UDP/IP checksum failed */ +#define RTASE_RX_TCPF BIT(24) /* TCP/IP checksum failed */ +#define RTASE_RX_VLAN_TAG BIT(16) /* VLAN tag available */ + +#define RTASE_NUM_DESC 1024 +#define RTASE_TX_BUDGET_DEFAULT 256 +#define RTASE_TX_RING_DESC_SIZE (RTASE_NUM_DESC * sizeof(struct rtase_tx_desc)) +#define RTASE_RX_RING_DESC_SIZE (RTASE_NUM_DESC * sizeof(union rtase_rx_desc)) +#define RTASE_TX_STOP_THRS (MAX_SKB_FRAGS + 1) +#define RTASE_TX_START_THRS (2 * RTASE_TX_STOP_THRS) +#define RTASE_VLAN_TAG_MASK GENMASK(15, 0) +#define RTASE_RX_PKT_SIZE_MASK GENMASK(13, 0) + +#define RTASE_IVEC_NAME_SIZE (IFNAMSIZ + 10) + +struct rtase_int_vector { + struct rtase_private *tp; + unsigned int irq; + char name[RTASE_IVEC_NAME_SIZE]; + u16 index; + u16 imr_addr; + u16 isr_addr; + u32 imr; + struct list_head ring_list; + struct napi_struct napi; + int (*poll)(struct napi_struct *napi, int budget); +}; + +struct rtase_ring { + struct rtase_int_vector *ivec; + void *desc; + dma_addr_t phy_addr; + u32 cur_idx; + u32 dirty_idx; + u16 index; + + struct sk_buff *skbuff[RTASE_NUM_DESC]; + union { + u32 len[RTASE_NUM_DESC]; + dma_addr_t data_phy_addr[RTASE_NUM_DESC]; + } mis; + + struct list_head ring_entry; + int (*ring_handler)(struct rtase_ring *ring, int budget); +}; + +struct rtase_private { + void __iomem *mmio_addr; + u32 sw_flag; + + struct pci_dev *pdev; + struct net_device *dev; + u32 rx_buf_sz; + + struct page_pool *page_pool; + struct rtase_ring tx_ring[RTASE_NUM_TX_QUEUE]; + struct rtase_ring rx_ring[RTASE_NUM_RX_QUEUE]; + struct rtase_counters *tally_vaddr; + dma_addr_t tally_paddr; + + u32 vlan_filter_ctrl; + u16 vlan_filter_vid[RTASE_VLAN_FILTER_ENTRY_NUM]; + + struct msix_entry msix_entry[RTASE_NUM_MSIX]; + struct rtase_int_vector int_vector[RTASE_NUM_MSIX]; + + u16 tx_queue_ctrl; + u16 func_tx_queue_num; + u16 func_rx_queue_num; + u16 int_nums; + u16 tx_int_mit; + u16 rx_int_mit; +}; + +#define RTASE_LSO_64K 64000 + +#define RTASE_NIC_MAX_PHYS_BUF_COUNT_LSO2 (16 * 4) + +#define RTASE_TCPHO_MASK GENMASK(24, 18) + +#define RTASE_MSS_MASK GENMASK(28, 18) + +#endif /* _RTASE_H_ */ diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c new file mode 100644 index 000000000000..8bb3b96a57aa --- /dev/null +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -0,0 +1,639 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* + * rtase is the Linux device driver released for Realtek Automotive Switch + * controllers with PCI-Express interface. + * + * Copyright(c) 2024 Realtek Semiconductor Corp. + * + * Below is a simplified block diagram of the chip and its relevant interfaces. + * + * ************************* + * * * + * * CPU network device * + * * * + * * +-------------+ * + * * | PCIE Host | * + * ***********++************ + * || + * PCIE + * || + * ********************++********************** + * * | PCIE Endpoint | * + * * +---------------+ * + * * | GMAC | * + * * +--++--+ Realtek * + * * || RTL90xx Series * + * * || * + * * +-------------++----------------+ * + * * | | MAC | | * + * * | +-----+ | * + * * | | * + * * | Ethernet Switch Core | * + * * | | * + * * | +-----+ +-----+ | * + * * | | MAC |...........| MAC | | * + * * +---+-----+-----------+-----+---+ * + * * | PHY |...........| PHY | * + * * +--++-+ +--++-+ * + * *************||****************||*********** + * + * The block of the Realtek RTL90xx series is our entire chip architecture, + * the GMAC is connected to the switch core, and there is no PHY in between. + * In addition, this driver is mainly used to control GMAC, but does not + * control the switch core, so it is not the same as DSA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "rtase.h" + +#define RTK_OPTS1_DEBUG_VALUE 0x0BADBEEF +#define RTK_MAGIC_NUMBER 0x0BADBADBADBADBAD + +static const struct pci_device_id rtase_pci_tbl[] = { + {PCI_VDEVICE(REALTEK, 0x906A)}, + {} +}; + +MODULE_DEVICE_TABLE(pci, rtase_pci_tbl); + +MODULE_AUTHOR("Realtek ARD Software Team"); +MODULE_DESCRIPTION("Network Driver for the PCIe interface of Realtek Automotive Ethernet Switch"); +MODULE_LICENSE("Dual BSD/GPL"); + +struct rtase_counters { + __le64 tx_packets; + __le64 rx_packets; + __le64 tx_errors; + __le32 rx_errors; + __le16 rx_missed; + __le16 align_errors; + __le32 tx_one_collision; + __le32 tx_multi_collision; + __le64 rx_unicast; + __le64 rx_broadcast; + __le32 rx_multicast; + __le16 tx_aborted; + __le16 tx_underun; +} __packed; + +static void rtase_w8(const struct rtase_private *tp, u16 reg, u8 val8) +{ + writeb(val8, tp->mmio_addr + reg); +} + +static void rtase_w16(const struct rtase_private *tp, u16 reg, u16 val16) +{ + writew(val16, tp->mmio_addr + reg); +} + +static void rtase_w32(const struct rtase_private *tp, u16 reg, u32 val32) +{ + writel(val32, tp->mmio_addr + reg); +} + +static u8 rtase_r8(const struct rtase_private *tp, u16 reg) +{ + return readb(tp->mmio_addr + reg); +} + +static u16 rtase_r16(const struct rtase_private *tp, u16 reg) +{ + return readw(tp->mmio_addr + reg); +} + +static u32 rtase_r32(const struct rtase_private *tp, u16 reg) +{ + return readl(tp->mmio_addr + reg); +} + +static void rtase_tally_counter_clear(const struct rtase_private *tp) +{ + u32 cmd = lower_32_bits(tp->tally_paddr); + + rtase_w32(tp, RTASE_DTCCR4, upper_32_bits(tp->tally_paddr)); + rtase_w32(tp, RTASE_DTCCR0, cmd | RTASE_COUNTER_RESET); +} + +static void rtase_enable_eem_write(const struct rtase_private *tp) +{ + u8 val; + + val = rtase_r8(tp, RTASE_EEM); + rtase_w8(tp, RTASE_EEM, val | RTASE_EEM_UNLOCK); +} + +static void rtase_disable_eem_write(const struct rtase_private *tp) +{ + u8 val; + + val = rtase_r8(tp, RTASE_EEM); + rtase_w8(tp, RTASE_EEM, val & ~RTASE_EEM_UNLOCK); +} + +static void rtase_rar_set(const struct rtase_private *tp, const u8 *addr) +{ + u32 rar_low, rar_high; + + rar_low = (u32)addr[0] | ((u32)addr[1] << 8) | + ((u32)addr[2] << 16) | ((u32)addr[3] << 24); + + rar_high = (u32)addr[4] | ((u32)addr[5] << 8); + + rtase_enable_eem_write(tp); + rtase_w32(tp, RTASE_MAC0, rar_low); + rtase_w32(tp, RTASE_MAC4, rar_high); + rtase_disable_eem_write(tp); + rtase_w16(tp, RTASE_LBK_CTRL, RTASE_LBK_ATLD | RTASE_LBK_CLR); +} + +static void rtase_get_mac_address(struct net_device *dev) +{ + struct rtase_private *tp = netdev_priv(dev); + u8 mac_addr[ETH_ALEN] __aligned(2) = {}; + u32 i; + + for (i = 0; i < ETH_ALEN; i++) + mac_addr[i] = rtase_r8(tp, RTASE_MAC0 + i); + + if (!is_valid_ether_addr(mac_addr)) { + eth_hw_addr_random(dev); + netdev_warn(dev, "Random ether addr %pM\n", dev->dev_addr); + } else { + eth_hw_addr_set(dev, mac_addr); + ether_addr_copy(dev->perm_addr, dev->dev_addr); + } + + rtase_rar_set(tp, dev->dev_addr); +} + +static void rtase_reset_interrupt(struct pci_dev *pdev, + const struct rtase_private *tp) +{ + if (tp->sw_flag & RTASE_SWF_MSIX_ENABLED) + pci_disable_msix(pdev); + else + pci_disable_msi(pdev); +} + +static int rtase_alloc_msix(struct pci_dev *pdev, struct rtase_private *tp) +{ + int ret, irq; + u16 i; + + memset(tp->msix_entry, 0x0, RTASE_NUM_MSIX * + sizeof(struct msix_entry)); + + for (i = 0; i < RTASE_NUM_MSIX; i++) + tp->msix_entry[i].entry = i; + + ret = pci_enable_msix_exact(pdev, tp->msix_entry, tp->int_nums); + + if (ret) + return ret; + + for (i = 0; i < tp->int_nums; i++) { + irq = pci_irq_vector(pdev, i); + if (!irq) { + pci_disable_msix(pdev); + return irq; + } + + tp->int_vector[i].irq = irq; + } + + return 0; +} + +static int rtase_alloc_interrupt(struct pci_dev *pdev, + struct rtase_private *tp) +{ + int ret; + + ret = rtase_alloc_msix(pdev, tp); + if (ret) { + ret = pci_enable_msi(pdev); + if (ret) { + dev_err(&pdev->dev, + "unable to alloc interrupt.(MSI)\n"); + return ret; + } + + tp->sw_flag |= RTASE_SWF_MSI_ENABLED; + } else { + tp->sw_flag |= RTASE_SWF_MSIX_ENABLED; + } + + return 0; +} + +static void rtase_init_hardware(const struct rtase_private *tp) +{ + u16 i; + + for (i = 0; i < RTASE_VLAN_FILTER_ENTRY_NUM; i++) + rtase_w32(tp, RTASE_VLAN_ENTRY_0 + i * 4, 0); +} + +static void rtase_init_int_vector(struct rtase_private *tp) +{ + u16 i; + + /* interrupt vector 0 */ + tp->int_vector[0].tp = tp; + tp->int_vector[0].index = 0; + tp->int_vector[0].imr_addr = RTASE_IMR0; + tp->int_vector[0].isr_addr = RTASE_ISR0; + tp->int_vector[0].imr = RTASE_ROK | RTASE_RDU | RTASE_TOK | + RTASE_TOK4 | RTASE_TOK5 | RTASE_TOK6 | + RTASE_TOK7; + tp->int_vector[0].poll = rtase_poll; + + memset(tp->int_vector[0].name, 0x0, sizeof(tp->int_vector[0].name)); + INIT_LIST_HEAD(&tp->int_vector[0].ring_list); + + netif_napi_add(tp->dev, &tp->int_vector[0].napi, + tp->int_vector[0].poll); + + /* interrupt vector 1 ~ 3 */ + for (i = 1; i < tp->int_nums; i++) { + tp->int_vector[i].tp = tp; + tp->int_vector[i].index = i; + tp->int_vector[i].imr_addr = RTASE_IMR1 + (i - 1) * 4; + tp->int_vector[i].isr_addr = RTASE_ISR1 + (i - 1) * 4; + tp->int_vector[i].imr = RTASE_Q_ROK | RTASE_Q_RDU | + RTASE_Q_TOK; + tp->int_vector[i].poll = rtase_poll; + + memset(tp->int_vector[i].name, 0x0, + sizeof(tp->int_vector[0].name)); + INIT_LIST_HEAD(&tp->int_vector[i].ring_list); + + netif_napi_add(tp->dev, &tp->int_vector[i].napi, + tp->int_vector[i].poll); + } +} + +static u16 rtase_calc_time_mitigation(u32 time_us) +{ + u8 msb, time_count, time_unit; + u16 int_miti; + + time_us = min_t(int, time_us, RTASE_MITI_MAX_TIME); + + msb = fls(time_us); + if (msb >= RTASE_MITI_COUNT_BIT_NUM) { + time_unit = msb - RTASE_MITI_COUNT_BIT_NUM; + time_count = time_us >> (msb - RTASE_MITI_COUNT_BIT_NUM); + } else { + time_unit = 0; + time_count = time_us; + } + + int_miti = u16_encode_bits(time_count, RTASE_MITI_TIME_COUNT_MASK) | + u16_encode_bits(time_unit, RTASE_MITI_TIME_UNIT_MASK); + + return int_miti; +} + +static u16 rtase_calc_packet_num_mitigation(u16 pkt_num) +{ + u8 msb, pkt_num_count, pkt_num_unit; + u16 int_miti; + + pkt_num = min_t(int, pkt_num, RTASE_MITI_MAX_PKT_NUM); + + if (pkt_num > 60) { + pkt_num_unit = RTASE_MITI_MAX_PKT_NUM_IDX; + pkt_num_count = pkt_num / RTASE_MITI_MAX_PKT_NUM_UNIT; + } else { + msb = fls(pkt_num); + if (msb >= RTASE_MITI_COUNT_BIT_NUM) { + pkt_num_unit = msb - RTASE_MITI_COUNT_BIT_NUM; + pkt_num_count = pkt_num >> (msb - + RTASE_MITI_COUNT_BIT_NUM); + } else { + pkt_num_unit = 0; + pkt_num_count = pkt_num; + } + } + + int_miti = u16_encode_bits(pkt_num_count, + RTASE_MITI_PKT_NUM_COUNT_MASK) | + u16_encode_bits(pkt_num_unit, + RTASE_MITI_PKT_NUM_UNIT_MASK); + + return int_miti; +} + +static void rtase_init_software_variable(struct pci_dev *pdev, + struct rtase_private *tp) +{ + u16 int_miti; + + tp->tx_queue_ctrl = RTASE_TXQ_CTRL; + tp->func_tx_queue_num = RTASE_FUNC_TXQ_NUM; + tp->func_rx_queue_num = RTASE_FUNC_RXQ_NUM; + tp->int_nums = RTASE_INTERRUPT_NUM; + + int_miti = rtase_calc_time_mitigation(RTASE_MITI_DEFAULT_TIME) | + rtase_calc_packet_num_mitigation(RTASE_MITI_DEFAULT_PKT_NUM); + tp->tx_int_mit = int_miti; + tp->rx_int_mit = int_miti; + + tp->sw_flag = 0; + + rtase_init_int_vector(tp); + + /* MTU range: 60 - hw-specific max */ + tp->dev->min_mtu = ETH_ZLEN; + tp->dev->max_mtu = RTASE_MAX_JUMBO_SIZE; +} + +static bool rtase_check_mac_version_valid(struct rtase_private *tp) +{ + u32 hw_ver = rtase_r32(tp, RTASE_TX_CONFIG_0) & RTASE_HW_VER_MASK; + bool known_ver = false; + + switch (hw_ver) { + case 0x00800000: + case 0x04000000: + case 0x04800000: + known_ver = true; + break; + } + + return known_ver; +} + +static int rtase_init_board(struct pci_dev *pdev, struct net_device **dev_out, + void __iomem **ioaddr_out) +{ + struct net_device *dev; + void __iomem *ioaddr; + int ret = -ENOMEM; + + /* dev zeroed in alloc_etherdev */ + dev = alloc_etherdev_mq(sizeof(struct rtase_private), + RTASE_FUNC_TXQ_NUM); + if (!dev) + goto err_out; + + SET_NETDEV_DEV(dev, &pdev->dev); + + ret = pci_enable_device(pdev); + if (ret < 0) + goto err_out_free_dev; + + /* make sure PCI base addr 1 is MMIO */ + if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { + ret = -ENODEV; + goto err_out_disable; + } + + /* check for weird/broken PCI region reporting */ + if (pci_resource_len(pdev, 2) < RTASE_REGS_SIZE) { + ret = -ENODEV; + goto err_out_disable; + } + + ret = pci_request_regions(pdev, KBUILD_MODNAME); + if (ret < 0) + goto err_out_disable; + + if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { + dev_err(&pdev->dev, "no usable dma addressing method\n"); + goto err_out_free_res; + } + + pci_set_master(pdev); + + /* ioremap MMIO region */ + ioaddr = ioremap(pci_resource_start(pdev, 2), + pci_resource_len(pdev, 2)); + if (!ioaddr) { + ret = -EIO; + goto err_out_free_res; + } + + *ioaddr_out = ioaddr; + *dev_out = dev; + + return ret; + +err_out_free_res: + pci_release_regions(pdev); + +err_out_disable: + pci_disable_device(pdev); + +err_out_free_dev: + free_netdev(dev); + +err_out: + *ioaddr_out = NULL; + *dev_out = NULL; + + return ret; +} + +static void rtase_release_board(struct pci_dev *pdev, struct net_device *dev, + void __iomem *ioaddr) +{ + const struct rtase_private *tp = netdev_priv(dev); + + rtase_rar_set(tp, tp->dev->perm_addr); + iounmap(ioaddr); + + if ((tp->sw_flag & RTASE_SWF_MSIX_ENABLED)) + pci_disable_msix(pdev); + else + pci_disable_msi(pdev); + + pci_release_regions(pdev); + pci_disable_device(pdev); + free_netdev(dev); +} + +static int rtase_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct net_device *dev = NULL; + struct rtase_int_vector *ivec; + void __iomem *ioaddr = NULL; + struct rtase_private *tp; + int ret, i; + + if (!pdev->is_physfn && pdev->is_virtfn) { + dev_err(&pdev->dev, + "This module does not support a virtual function."); + return -EINVAL; + } + + dev_dbg(&pdev->dev, "Automotive Switch Ethernet driver loaded\n"); + + ret = rtase_init_board(pdev, &dev, &ioaddr); + if (ret != 0) + return ret; + + tp = netdev_priv(dev); + tp->mmio_addr = ioaddr; + tp->dev = dev; + tp->pdev = pdev; + + /* identify chip attached to board */ + if (!rtase_check_mac_version_valid(tp)) { + return dev_err_probe(&pdev->dev, -ENODEV, + "unknown chip version, contact rtase " + "maintainers (see MAINTAINERS file)\n"); + } + + rtase_init_software_variable(pdev, tp); + rtase_init_hardware(tp); + + ret = rtase_alloc_interrupt(pdev, tp); + if (ret < 0) { + dev_err(&pdev->dev, "unable to alloc MSIX/MSI\n"); + goto err_out_1; + } + + rtase_init_netdev_ops(dev); + + dev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS; + + dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; + + dev->features |= NETIF_F_IP_CSUM; + dev->features |= NETIF_F_HIGHDMA; + dev->features |= NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_TSO; + dev->features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; + dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | + NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_CTAG_RX; + dev->hw_features |= NETIF_F_RXALL; + dev->hw_features |= NETIF_F_RXFCS; + dev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; + dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | + NETIF_F_HIGHDMA; + dev->priv_flags |= IFF_LIVE_ADDR_CHANGE; + netif_set_tso_max_size(dev, RTASE_LSO_64K); + netif_set_tso_max_segs(dev, RTASE_NIC_MAX_PHYS_BUF_COUNT_LSO2); + + rtase_get_mac_address(dev); + + tp->tally_vaddr = dma_alloc_coherent(&pdev->dev, + sizeof(*tp->tally_vaddr), + &tp->tally_paddr, + GFP_KERNEL); + if (!tp->tally_vaddr) { + ret = -ENOMEM; + goto err_out; + } + + rtase_tally_counter_clear(tp); + + pci_set_drvdata(pdev, dev); + + netif_carrier_off(dev); + + ret = register_netdev(dev); + if (ret != 0) + goto err_out; + + netdev_dbg(dev, "%pM, IRQ %d\n", dev->dev_addr, dev->irq); + + return 0; + +err_out: + if (tp->tally_vaddr) { + dma_free_coherent(&pdev->dev, + sizeof(*tp->tally_vaddr), + tp->tally_vaddr, + tp->tally_paddr); + + tp->tally_vaddr = NULL; + } + +err_out_1: + for (i = 0; i < tp->int_nums; i++) { + ivec = &tp->int_vector[i]; + netif_napi_del(&ivec->napi); + } + + rtase_release_board(pdev, dev, ioaddr); + + return ret; +} + +static void rtase_remove_one(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + struct rtase_private *tp = netdev_priv(dev); + struct rtase_int_vector *ivec; + u32 i; + + unregister_netdev(dev); + + for (i = 0; i < tp->int_nums; i++) { + ivec = &tp->int_vector[i]; + netif_napi_del(&ivec->napi); + } + + rtase_reset_interrupt(pdev, tp); + if (tp->tally_vaddr) { + dma_free_coherent(&pdev->dev, + sizeof(*tp->tally_vaddr), + tp->tally_vaddr, + tp->tally_paddr); + tp->tally_vaddr = NULL; + } + + rtase_release_board(pdev, dev, tp->mmio_addr); + pci_set_drvdata(pdev, NULL); +} + +static void rtase_shutdown(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + const struct rtase_private *tp; + + tp = netdev_priv(dev); + + if (netif_running(dev)) + rtase_close(dev); + + rtase_reset_interrupt(pdev, tp); +} + +static struct pci_driver rtase_pci_driver = { + .name = KBUILD_MODNAME, + .id_table = rtase_pci_tbl, + .probe = rtase_init_one, + .remove = rtase_remove_one, + .shutdown = rtase_shutdown, +}; + +module_pci_driver(rtase_pci_driver); From patchwork Fri May 17 07:52:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666685 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6256D23770; Fri, 17 May 2024 07:54:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932465; cv=none; b=IFrMfP8yfTzTksDEvsDprZGPqVDJ+rtMHbzLeb6Awn3b0Uu8fMcidnKiB/zjUDtSQqE4Oc2YwvvZQbF4JqtazEgPrm3obWCg8Pg/8sql6x1otcv2z3JwwQ83KJe5k5lQMiB5bhmpxyHDBWdcSH23qlROyXnm4WS3i4WV9TkYUcA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932465; c=relaxed/simple; bh=hV9LMCAm6+dq6u8ZVIZujyYQERrlUGGvpQ6dvrd9b4A=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=DC3wqDgoaotWAEhAqnzKw/xgFcJt8IMwCyxsPDJtdrC/0swXIljB+eofpBcK+UG6CKLhN8anuCCFEQpL+YorRHUoP5Nr9W/hhruRDzfdAc2b/pyO1BkWkbtlF5VMMT1eb0KWzkH5yQfGT3f8qC+1Ax/dYi/8ufIlgjx3KYIKHAA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7s0eN52158123, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36506.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7s0eN52158123 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:54:00 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36506.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:54:01 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:54:00 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 02/13] rtase: Implement the .ndo_open function Date: Fri, 17 May 2024 15:52:51 +0800 Message-ID: <20240517075302.7653-3-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36505.realtek.com.tw (172.21.6.25) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Implement the .ndo_open function to set default hardware settings and initialize the descriptor ring and interrupts. Among them, when requesting irq, because the first group of interrupts needs to process more events, the overall structure will be different from other groups of interrupts, so it needs to be processed separately. Signed-off-by: Justin Lai --- .../net/ethernet/realtek/rtase/rtase_main.c | 425 ++++++++++++++++++ 1 file changed, 425 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c index 8bb3b96a57aa..47fd383716e5 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -130,6 +130,297 @@ static u32 rtase_r32(const struct rtase_private *tp, u16 reg) return readl(tp->mmio_addr + reg); } +static int rtase_alloc_desc(struct rtase_private *tp) +{ + struct pci_dev *pdev = tp->pdev; + u32 i; + + /* rx and tx descriptors needs 256 bytes alignment. + * dma_alloc_coherent provides more. + */ + for (i = 0; i < tp->func_tx_queue_num; i++) { + tp->tx_ring[i].desc = + dma_alloc_coherent(&pdev->dev, + RTASE_TX_RING_DESC_SIZE, + &tp->tx_ring[i].phy_addr, + GFP_KERNEL); + if (!tp->tx_ring[i].desc) { + netdev_err(tp->dev, "Failed to allocate dma memory of " + "tx descriptor.\n"); + return -ENOMEM; + } + } + + for (i = 0; i < tp->func_rx_queue_num; i++) { + tp->rx_ring[i].desc = + dma_alloc_coherent(&pdev->dev, + RTASE_RX_RING_DESC_SIZE, + &tp->rx_ring[i].phy_addr, + GFP_KERNEL); + if (!tp->rx_ring[i].desc) { + netdev_err(tp->dev, "Failed to allocate dma memory of " + "rx descriptor.\n"); + return -ENOMEM; + } + } + + return 0; +} + +static void rtase_free_desc(struct rtase_private *tp) +{ + struct pci_dev *pdev = tp->pdev; + u32 i; + + for (i = 0; i < tp->func_tx_queue_num; i++) { + if (!tp->tx_ring[i].desc) + continue; + + dma_free_coherent(&pdev->dev, RTASE_TX_RING_DESC_SIZE, + tp->tx_ring[i].desc, + tp->tx_ring[i].phy_addr); + tp->tx_ring[i].desc = NULL; + } + + for (i = 0; i < tp->func_rx_queue_num; i++) { + if (!tp->rx_ring[i].desc) + continue; + + dma_free_coherent(&pdev->dev, RTASE_RX_RING_DESC_SIZE, + tp->rx_ring[i].desc, + tp->rx_ring[i].phy_addr); + tp->rx_ring[i].desc = NULL; + } +} + +static void rtase_mark_to_asic(union rtase_rx_desc *desc, u32 rx_buf_sz) +{ + u32 eor = le32_to_cpu(desc->desc_cmd.opts1) & RTASE_RING_END; + + desc->desc_status.opts2 = 0; + /* force memory writes to complete before releasing descriptor */ + dma_wmb(); + WRITE_ONCE(desc->desc_cmd.opts1, + cpu_to_le32(RTASE_DESC_OWN | eor | rx_buf_sz)); +} + +static void rtase_tx_desc_init(struct rtase_private *tp, u16 idx) +{ + struct rtase_ring *ring = &tp->tx_ring[idx]; + struct rtase_tx_desc *desc; + u32 i; + + memset(ring->desc, 0x0, RTASE_TX_RING_DESC_SIZE); + memset(ring->skbuff, 0x0, sizeof(ring->skbuff)); + ring->cur_idx = 0; + ring->dirty_idx = 0; + ring->index = idx; + + for (i = 0; i < RTASE_NUM_DESC; i++) { + ring->mis.len[i] = 0; + if ((RTASE_NUM_DESC - 1) == i) { + desc = ring->desc + sizeof(struct rtase_tx_desc) * i; + desc->opts1 = cpu_to_le32(RTASE_RING_END); + } + } + + ring->ring_handler = tx_handler; + if (idx < 4) { + ring->ivec = &tp->int_vector[idx]; + list_add_tail(&ring->ring_entry, + &tp->int_vector[idx].ring_list); + } else { + ring->ivec = &tp->int_vector[0]; + list_add_tail(&ring->ring_entry, &tp->int_vector[0].ring_list); + } +} + +static void rtase_map_to_asic(union rtase_rx_desc *desc, dma_addr_t mapping, + u32 rx_buf_sz) +{ + desc->desc_cmd.addr = cpu_to_le64(mapping); + + rtase_mark_to_asic(desc, rx_buf_sz); +} + +static void rtase_make_unusable_by_asic(union rtase_rx_desc *desc) +{ + desc->desc_cmd.addr = cpu_to_le64(RTK_MAGIC_NUMBER); + desc->desc_cmd.opts1 &= ~cpu_to_le32(RTASE_DESC_OWN | RSVD_MASK); +} + +static int rtase_alloc_rx_skb(const struct rtase_ring *ring, + struct sk_buff **p_sk_buff, + union rtase_rx_desc *desc, + dma_addr_t *rx_phy_addr, u8 in_intr) +{ + struct rtase_int_vector *ivec = ring->ivec; + const struct rtase_private *tp = ivec->tp; + struct sk_buff *skb = NULL; + dma_addr_t mapping; + struct page *page; + void *buf_addr; + int ret = 0; + + page = page_pool_dev_alloc_pages(tp->page_pool); + if (!page) { + netdev_err(tp->dev, "failed to alloc page\n"); + goto err_out; + } + + buf_addr = page_address(page); + mapping = page_pool_get_dma_addr(page); + + skb = build_skb(buf_addr, PAGE_SIZE); + if (!skb) { + page_pool_put_full_page(tp->page_pool, page, true); + netdev_err(tp->dev, "failed to build skb\n"); + goto err_out; + } + + *p_sk_buff = skb; + *rx_phy_addr = mapping; + rtase_map_to_asic(desc, mapping, tp->rx_buf_sz); + + return ret; + +err_out: + if (skb) + dev_kfree_skb(skb); + + ret = -ENOMEM; + rtase_make_unusable_by_asic(desc); + + return ret; +} + +static u32 rtase_rx_ring_fill(struct rtase_ring *ring, u32 ring_start, + u32 ring_end, u8 in_intr) +{ + union rtase_rx_desc *desc_base = ring->desc; + u32 cur; + + for (cur = ring_start; ring_end - cur > 0; cur++) { + u32 i = cur % RTASE_NUM_DESC; + union rtase_rx_desc *desc = desc_base + i; + int ret; + + if (ring->skbuff[i]) + continue; + + ret = rtase_alloc_rx_skb(ring, &ring->skbuff[i], desc, + &ring->mis.data_phy_addr[i], + in_intr); + if (ret) + break; + } + + return cur - ring_start; +} + +static void rtase_mark_as_last_descriptor(union rtase_rx_desc *desc) +{ + desc->desc_cmd.opts1 |= cpu_to_le32(RTASE_RING_END); +} + +static void rtase_rx_ring_clear(struct rtase_ring *ring) +{ + union rtase_rx_desc *desc; + u32 i; + + for (i = 0; i < RTASE_NUM_DESC; i++) { + desc = ring->desc + sizeof(union rtase_rx_desc) * i; + + if (!ring->skbuff[i]) + continue; + + skb_mark_for_recycle(ring->skbuff[i]); + + dev_kfree_skb(ring->skbuff[i]); + + ring->skbuff[i] = NULL; + + rtase_make_unusable_by_asic(desc); + } +} + +static void rtase_rx_desc_init(struct rtase_private *tp, u16 idx) +{ + struct rtase_ring *ring = &tp->rx_ring[idx]; + u16 i; + + memset(ring->desc, 0x0, RTASE_RX_RING_DESC_SIZE); + memset(ring->skbuff, 0x0, sizeof(ring->skbuff)); + ring->cur_idx = 0; + ring->dirty_idx = 0; + ring->index = idx; + + for (i = 0; i < RTASE_NUM_DESC; i++) + ring->mis.data_phy_addr[i] = 0; + + ring->ring_handler = rx_handler; + ring->ivec = &tp->int_vector[idx]; + list_add_tail(&ring->ring_entry, &tp->int_vector[idx].ring_list); +} + +static void rtase_rx_clear(struct rtase_private *tp) +{ + u32 i; + + for (i = 0; i < tp->func_rx_queue_num; i++) + rtase_rx_ring_clear(&tp->rx_ring[i]); + + page_pool_destroy(tp->page_pool); + tp->page_pool = NULL; +} + +static int rtase_init_ring(const struct net_device *dev) +{ + struct rtase_private *tp = netdev_priv(dev); + struct page_pool_params pp_params = { 0 }; + struct page_pool *page_pool; + u32 num; + u16 i; + + pp_params.flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV; + pp_params.order = 0; + pp_params.pool_size = RTASE_NUM_DESC * tp->func_rx_queue_num; + pp_params.nid = dev_to_node(&tp->pdev->dev); + pp_params.dev = &tp->pdev->dev; + pp_params.dma_dir = DMA_FROM_DEVICE; + pp_params.max_len = PAGE_SIZE; + pp_params.offset = 0; + + page_pool = page_pool_create(&pp_params); + if (IS_ERR(page_pool)) { + netdev_err(tp->dev, "failed to create page pool\n"); + return -ENOMEM; + } + + tp->page_pool = page_pool; + + for (i = 0; i < tp->func_tx_queue_num; i++) + rtase_tx_desc_init(tp, i); + + for (i = 0; i < tp->func_rx_queue_num; i++) { + rtase_rx_desc_init(tp, i); + num = rtase_rx_ring_fill(&tp->rx_ring[i], 0, + RTASE_NUM_DESC, 0); + if (num != RTASE_NUM_DESC) + goto err_out; + + rtase_mark_as_last_descriptor(tp->rx_ring[i].desc + + sizeof(union rtase_rx_desc) * + (RTASE_NUM_DESC - 1)); + } + + return 0; + +err_out: + rtase_rx_clear(tp); + return -ENOMEM; +} + static void rtase_tally_counter_clear(const struct rtase_private *tp) { u32 cmd = lower_32_bits(tp->tally_paddr); @@ -138,6 +429,130 @@ static void rtase_tally_counter_clear(const struct rtase_private *tp) rtase_w32(tp, RTASE_DTCCR0, cmd | RTASE_COUNTER_RESET); } +static void rtase_nic_enable(const struct net_device *dev) +{ + const struct rtase_private *tp = netdev_priv(dev); + u16 rcr = rtase_r16(tp, RTASE_RX_CONFIG_1); + u8 val; + + rtase_w16(tp, RTASE_RX_CONFIG_1, rcr & ~RTASE_PCIE_RELOAD_EN); + rtase_w16(tp, RTASE_RX_CONFIG_1, rcr | RTASE_PCIE_RELOAD_EN); + + val = rtase_r8(tp, RTASE_CHIP_CMD); + rtase_w8(tp, RTASE_CHIP_CMD, val | RTASE_TE | RTASE_RE); + + val = rtase_r8(tp, RTASE_MISC); + rtase_w8(tp, RTASE_MISC, val & ~RTASE_RX_DV_GATE_EN); +} + +static void rtase_enable_hw_interrupt(const struct rtase_private *tp) +{ + const struct rtase_int_vector *ivec = &tp->int_vector[0]; + u32 i; + + rtase_w32(tp, ivec->imr_addr, ivec->imr); + + for (i = 1; i < tp->int_nums; i++) { + ivec = &tp->int_vector[i]; + rtase_w16(tp, ivec->imr_addr, ivec->imr); + } +} + +static void rtase_hw_start(const struct net_device *dev) +{ + const struct rtase_private *tp = netdev_priv(dev); + + rtase_nic_enable(dev); + rtase_enable_hw_interrupt(tp); +} + +static int rtase_open(struct net_device *dev) +{ + struct rtase_private *tp = netdev_priv(dev); + const struct pci_dev *pdev = tp->pdev; + struct rtase_int_vector *ivec; + u16 i = 0, j; + int ret; + + ivec = &tp->int_vector[0]; + tp->rx_buf_sz = RTASE_RX_BUF_SIZE; + + ret = rtase_alloc_desc(tp); + if (ret) + goto err_free_all_allocated_mem; + + ret = rtase_init_ring(dev); + if (ret) + goto err_free_all_allocated_mem; + + rtase_hw_config(dev); + + if (tp->sw_flag & RTASE_SWF_MSIX_ENABLED) { + ret = request_irq(ivec->irq, rtase_interrupt, 0, + dev->name, ivec); + if (ret) + goto err_free_all_allocated_irq; + + /* request other interrupts to handle multiqueue */ + for (i = 1; i < tp->int_nums; i++) { + ivec = &tp->int_vector[i]; + snprintf(ivec->name, sizeof(ivec->name), "%s_int%i", + tp->dev->name, i); + ret = request_irq(ivec->irq, rtase_q_interrupt, 0, + ivec->name, ivec); + if (ret) + goto err_free_all_allocated_irq; + } + } else { + ret = request_irq(pdev->irq, rtase_interrupt, 0, dev->name, + ivec); + if (ret) + goto err_free_all_allocated_mem; + } + + rtase_hw_start(dev); + + for (i = 0; i < tp->int_nums; i++) { + ivec = &tp->int_vector[i]; + napi_enable(&ivec->napi); + } + + netif_carrier_on(dev); + netif_wake_queue(dev); + + return 0; + +err_free_all_allocated_irq: + for (j = 0; j < i; j++) + free_irq(tp->int_vector[j].irq, &tp->int_vector[j]); + +err_free_all_allocated_mem: + rtase_free_desc(tp); + + return ret; +} + +static int rtase_close(struct net_device *dev) +{ + struct rtase_private *tp = netdev_priv(dev); + const struct pci_dev *pdev = tp->pdev; + u32 i; + + rtase_down(dev); + + if (tp->sw_flag & RTASE_SWF_MSIX_ENABLED) { + for (i = 0; i < tp->int_nums; i++) + free_irq(tp->int_vector[i].irq, &tp->int_vector[i]); + + } else { + free_irq(pdev->irq, &tp->int_vector[0]); + } + + rtase_free_desc(tp); + + return 0; +} + static void rtase_enable_eem_write(const struct rtase_private *tp) { u8 val; @@ -170,6 +585,11 @@ static void rtase_rar_set(const struct rtase_private *tp, const u8 *addr) rtase_w16(tp, RTASE_LBK_CTRL, RTASE_LBK_ATLD | RTASE_LBK_CLR); } +static const struct net_device_ops rtase_netdev_ops = { + .ndo_open = rtase_open, + .ndo_stop = rtase_close, +}; + static void rtase_get_mac_address(struct net_device *dev) { struct rtase_private *tp = netdev_priv(dev); @@ -190,6 +610,11 @@ static void rtase_get_mac_address(struct net_device *dev) rtase_rar_set(tp, dev->dev_addr); } +static void rtase_init_netdev_ops(struct net_device *dev) +{ + dev->netdev_ops = &rtase_netdev_ops; +} + static void rtase_reset_interrupt(struct pci_dev *pdev, const struct rtase_private *tp) { From patchwork Fri May 17 07:52:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666687 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D26C92375B; Fri, 17 May 2024 07:54:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932500; cv=none; b=A+rRY0O0WAwxRgKub4o5CDz3MCMQvWbcrZS5/aml8rn6ceul1bVzpJZ1NvPp4Nis/e2MiwwprZGQOyES03G80F077PsWbWtQa0yUs+yGLASuEyV6R5oW+N3F++0JTcNHV20whEkQWp3Gg341PfvXVmMtIvRsy3IsBAB+I69ffnU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932500; c=relaxed/simple; bh=8Zn+g0Xwm1331v9EOTqWgYq5iwTu9aRbc5TZ8ks1ui4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Oy7uFze6tPAkITGsrcXSKsQ7ltS2q00p8N+5sJxqkv79/gOzvASGJfPtlt+xLL/XyFcgFf8fojo2NCxT8GoeuCW2u61dXozKLvmHu1BMuk6jGrJbQ3vOrOJRp4lRYyEnlSHF9/hlvLtIpxu5duC+ESkeMAaR+WH+LxBmBNeFFi8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7saHsB2158563, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7saHsB2158563 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:54:36 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:54:36 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:54:36 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 03/13] rtase: Implement the rtase_down function Date: Fri, 17 May 2024 15:52:52 +0800 Message-ID: <20240517075302.7653-4-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36505.realtek.com.tw (172.21.6.25) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Implement the rtase_down function to disable hardware setting and interrupt and clear descriptor ring. Signed-off-by: Justin Lai --- .../net/ethernet/realtek/rtase/rtase_main.c | 152 ++++++++++++++++++ 1 file changed, 152 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c index 47fd383716e5..10bfefe18e49 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -193,6 +193,57 @@ static void rtase_free_desc(struct rtase_private *tp) } } +static void rtase_unmap_tx_skb(struct pci_dev *pdev, u32 len, + struct rtase_tx_desc *desc) +{ + dma_unmap_single(&pdev->dev, le64_to_cpu(desc->addr), len, + DMA_TO_DEVICE); + desc->opts1 = cpu_to_le32(RTK_OPTS1_DEBUG_VALUE); + desc->opts2 = 0x00; + desc->addr = cpu_to_le64(RTK_MAGIC_NUMBER); +} + +static void rtase_tx_clear_range(struct rtase_ring *ring, u32 start, u32 n) +{ + const struct rtase_private *tp = ring->ivec->tp; + struct rtase_tx_desc *desc_base = ring->desc; + struct net_device *dev = tp->dev; + u32 i; + + for (i = 0; i < n; i++) { + u32 entry = (start + i) % RTASE_NUM_DESC; + struct rtase_tx_desc *desc = desc_base + entry; + u32 len = ring->mis.len[entry]; + struct sk_buff *skb; + + if (len == 0) + continue; + + rtase_unmap_tx_skb(tp->pdev, len, desc); + ring->mis.len[entry] = 0; + skb = ring->skbuff[entry]; + if (!skb) + continue; + + dev->stats.tx_dropped++; + dev_kfree_skb_any(skb); + ring->skbuff[entry] = NULL; + } +} + +static void rtase_tx_clear(struct rtase_private *tp) +{ + struct rtase_ring *ring; + u16 i; + + for (i = 0; i < tp->func_tx_queue_num; i++) { + ring = &tp->tx_ring[i]; + rtase_tx_clear_range(ring, ring->dirty_idx, RTASE_NUM_DESC); + ring->cur_idx = 0; + ring->dirty_idx = 0; + } +} + static void rtase_mark_to_asic(union rtase_rx_desc *desc, u32 rx_buf_sz) { u32 eor = le32_to_cpu(desc->desc_cmd.opts1) & RTASE_RING_END; @@ -429,6 +480,80 @@ static void rtase_tally_counter_clear(const struct rtase_private *tp) rtase_w32(tp, RTASE_DTCCR0, cmd | RTASE_COUNTER_RESET); } +static void rtase_irq_dis_and_clear(const struct rtase_private *tp) +{ + const struct rtase_int_vector *ivec = &tp->int_vector[0]; + u32 val1; + u16 val2; + u8 i; + + rtase_w32(tp, ivec->imr_addr, 0); + val1 = rtase_r32(tp, ivec->isr_addr); + rtase_w32(tp, ivec->isr_addr, val1); + + for (i = 1; i < tp->int_nums; i++) { + ivec = &tp->int_vector[i]; + rtase_w16(tp, ivec->imr_addr, 0); + val2 = rtase_r16(tp, ivec->isr_addr); + rtase_w16(tp, ivec->isr_addr, val2); + } +} + +static void rtase_poll_timeout(const struct rtase_private *tp, u32 cond, + u32 sleep_us, u64 timeout_us, u16 reg) +{ + int err; + u8 val; + + err = read_poll_timeout(rtase_r8, val, val & cond, sleep_us, + timeout_us, false, tp, reg); + + if (err == -ETIMEDOUT) + netdev_err(tp->dev, "poll reg 0x00%x timeout\n", reg); +} + +static void rtase_nic_reset(const struct net_device *dev) +{ + const struct rtase_private *tp = netdev_priv(dev); + u16 rx_config; + u8 val; + + rx_config = rtase_r16(tp, RTASE_RX_CONFIG_0); + rtase_w16(tp, RTASE_RX_CONFIG_0, rx_config & ~RTASE_ACCEPT_MASK); + + val = rtase_r8(tp, RTASE_MISC); + rtase_w8(tp, RTASE_MISC, val | RTASE_RX_DV_GATE_EN); + + val = rtase_r8(tp, RTASE_CHIP_CMD); + rtase_w8(tp, RTASE_CHIP_CMD, val | RTASE_STOP_REQ); + mdelay(2); + + rtase_poll_timeout(tp, RTASE_STOP_REQ_DONE, 100, 150000, + RTASE_CHIP_CMD); + + rtase_poll_timeout(tp, RTASE_TX_FIFO_EMPTY, 100, 100000, + RTASE_FIFOR); + + rtase_poll_timeout(tp, RTASE_RX_FIFO_EMPTY, 100, 100000, + RTASE_FIFOR); + + val = rtase_r8(tp, RTASE_CHIP_CMD); + rtase_w8(tp, RTASE_CHIP_CMD, val & ~(RTASE_TE | RTASE_RE)); + val = rtase_r8(tp, RTASE_CHIP_CMD); + rtase_w8(tp, RTASE_CHIP_CMD, val & ~RTASE_STOP_REQ); + + rtase_w16(tp, RTASE_RX_CONFIG_0, rx_config); +} + +static void rtase_hw_reset(const struct net_device *dev) +{ + const struct rtase_private *tp = netdev_priv(dev); + + rtase_irq_dis_and_clear(tp); + + rtase_nic_reset(dev); +} + static void rtase_nic_enable(const struct net_device *dev) { const struct rtase_private *tp = netdev_priv(dev); @@ -532,6 +657,33 @@ static int rtase_open(struct net_device *dev) return ret; } +static void rtase_down(struct net_device *dev) +{ + struct rtase_private *tp = netdev_priv(dev); + struct rtase_int_vector *ivec; + struct rtase_ring *ring, *tmp; + u32 i; + + for (i = 0; i < tp->int_nums; i++) { + ivec = &tp->int_vector[i]; + napi_disable(&ivec->napi); + list_for_each_entry_safe(ring, tmp, &ivec->ring_list, + ring_entry) { + list_del(&ring->ring_entry); + } + } + + netif_tx_disable(dev); + + netif_carrier_off(dev); + + rtase_hw_reset(dev); + + rtase_tx_clear(tp); + + rtase_rx_clear(tp); +} + static int rtase_close(struct net_device *dev) { struct rtase_private *tp = netdev_priv(dev); From patchwork Fri May 17 07:52:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666688 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 84197179AB; Fri, 17 May 2024 07:55:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932528; cv=none; b=csCTIX3dlOJZieIP28w6uoVA172dK7T25GDNmtkb4qJS5N/Ne4OCtqZIScOcQT6rm/aZVRj9/HkPVONEcHH0xTyIVKo78gd26xEAL/W06j17DybmQV/oT0FYYGmGBOoG9I8mzHORSHjBA1E3LVB4q9R+LIwdOJlwzQXV8rzfeD8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932528; c=relaxed/simple; bh=1VUJjlgr072FaUR7VTaMzpqzqPmaOoGHGXxyjJX5RMg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=e2V8PqoV2VUkZJoKcGxpAVM3rKIZ7K8EpvbFhBiQEzESgBeajulKvE5YudhNlkJ7egyEYxGgMNh5vbTtQOD842iSieK2BOUWhPqqvOu2ladp6zRLC6Gcrv+/QpZKPJC/bDOxhztp8RmO87cW4NksK16WwZiiEyxCHOXyoEtKFtg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7t30h92158642, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36506.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7t30h92158642 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:55:04 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36506.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:55:04 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:55:03 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 04/13] rtase: Implement the interrupt routine and rtase_poll Date: Fri, 17 May 2024 15:52:53 +0800 Message-ID: <20240517075302.7653-5-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36506.realtek.com.tw (172.21.6.27) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org 1. Implement rtase_interrupt to handle txQ0/rxQ0, txQ4~txQ7 interrupts, and implement rtase_q_interrupt to handle txQ1/rxQ1, txQ2/rxQ2 and txQ3/rxQ3 interrupts. 2. Implement rtase_poll to call ring_handler to process the tx or rx packet of each ring. If the returned value is budget,it means that there is still work of a certain ring that has not yet been completed. Signed-off-by: Justin Lai --- .../net/ethernet/realtek/rtase/rtase_main.c | 89 +++++++++++++++++++ 1 file changed, 89 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c index 10bfefe18e49..c5279363425b 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -591,6 +591,76 @@ static void rtase_hw_start(const struct net_device *dev) rtase_enable_hw_interrupt(tp); } +/* the interrupt handler does RXQ0 and TXQ0, TXQ4~7 interrutp status + */ +static irqreturn_t rtase_interrupt(int irq, void *dev_instance) +{ + const struct rtase_private *tp; + struct rtase_int_vector *ivec; + u32 status; + + ivec = dev_instance; + tp = ivec->tp; + status = rtase_r32(tp, ivec->isr_addr); + + rtase_w32(tp, ivec->imr_addr, 0x0); + rtase_w32(tp, ivec->isr_addr, status & ~RTASE_FOVW); + + if (napi_schedule_prep(&ivec->napi)) + __napi_schedule(&ivec->napi); + + return IRQ_HANDLED; +} + +/* the interrupt handler does RXQ1&TXQ1 or RXQ2&TXQ2 or RXQ3&TXQ3 interrupt + * status according to interrupt vector + */ +static irqreturn_t rtase_q_interrupt(int irq, void *dev_instance) +{ + const struct rtase_private *tp; + struct rtase_int_vector *ivec; + u16 status; + + ivec = dev_instance; + tp = ivec->tp; + status = rtase_r16(tp, ivec->isr_addr); + + rtase_w16(tp, ivec->imr_addr, 0x0); + rtase_w16(tp, ivec->isr_addr, status); + + if (napi_schedule_prep(&ivec->napi)) + __napi_schedule(&ivec->napi); + + return IRQ_HANDLED; +} + +static int rtase_poll(struct napi_struct *napi, int budget) +{ + const struct rtase_int_vector *ivec; + const struct rtase_private *tp; + struct rtase_ring *ring; + int total_workdone = 0; + + ivec = container_of(napi, struct rtase_int_vector, napi); + tp = ivec->tp; + + list_for_each_entry(ring, &ivec->ring_list, ring_entry) { + total_workdone += ring->ring_handler(ring, budget); + } + + if (total_workdone >= budget) + return budget; + + if (napi_complete_done(napi, total_workdone)) { + if (!ivec->index) + rtase_w32(tp, ivec->imr_addr, ivec->imr); + else + rtase_w16(tp, ivec->imr_addr, ivec->imr); + } + + return total_workdone; +} + static int rtase_open(struct net_device *dev) { struct rtase_private *tp = netdev_priv(dev); @@ -737,9 +807,28 @@ static void rtase_rar_set(const struct rtase_private *tp, const u8 *addr) rtase_w16(tp, RTASE_LBK_CTRL, RTASE_LBK_ATLD | RTASE_LBK_CLR); } +#ifdef CONFIG_NET_POLL_CONTROLLER +/* Polling 'interrupt' - used by things like netconsole to send skbs + * without having to re-enable interrupts. It's not called while + * the interrupt routine is executing. + */ +static void rtase_netpoll(struct net_device *dev) +{ + const struct rtase_private *tp = netdev_priv(dev); + const struct pci_dev *pdev = tp->pdev; + + disable_irq(pdev->irq); + rtase_interrupt(pdev->irq, dev); + enable_irq(pdev->irq); +} +#endif + static const struct net_device_ops rtase_netdev_ops = { .ndo_open = rtase_open, .ndo_stop = rtase_close, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = rtase_netpoll, +#endif }; static void rtase_get_mac_address(struct net_device *dev) From patchwork Fri May 17 07:52:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666689 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A0BA17BCD; Fri, 17 May 2024 07:55:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932561; cv=none; b=D/nRlESMj4LWGCwfsvacqfR3XPGye/B3Q4hCmi3Ai6u0YdNgEXzBf68EGSU9mpLcg3EiXkGoMus0nSNQM3XfDmbi8oW2TwkWcL+nxXk2Mzu+RLKFr4FqANd/KlrqMJnJfgJUgb8hH/1PZbOYNHTbpvrgwyO6P/aMQjEzGde+MqI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932561; c=relaxed/simple; bh=wdUBu6CTJ/wv1mBjIznYd7r2ci7ifYdn4N7/gLvZPz0=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ZpPjJBVnc8pcZaSPacySLSIqa/pdf2jI1aL/IhITwPxpA96m49ISdeS8MBNsQURmHRmPHp6DnJaSJnAoXMPg0Tyt+wCmWBaJ3EEQtG4EleZUlnR4gSBhx12me8SCaC2vkGYnmOSvckFaC37RvEXttu22Kcid8tqyR5DEnlD876Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7tbuP72158842, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7tbuP72158842 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:55:37 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:55:38 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:55:37 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 05/13] rtase: Implement hardware configuration function Date: Fri, 17 May 2024 15:52:54 +0800 Message-ID: <20240517075302.7653-6-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36505.realtek.com.tw (172.21.6.25) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Implement rtase_hw_config to set default hardware settings, including setting interrupt mitigation, tx/rx DMA burst, interframe gap time, rx packet filter, near fifo threshold and fill descriptor ring and tally counter address, and enable flow control. When filling the rx descriptor ring, the first group of queues needs to be processed separately because the positions of the first group of queues are not regular with other subsequent groups. The other queues are all newly added features, but we want to retain the original design. So they were not put together. Signed-off-by: Justin Lai --- .../net/ethernet/realtek/rtase/rtase_main.c | 238 ++++++++++++++++++ 1 file changed, 238 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c index c5279363425b..0f02563b9444 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -472,6 +472,23 @@ static int rtase_init_ring(const struct net_device *dev) return -ENOMEM; } +static void rtase_interrupt_mitigation(const struct rtase_private *tp) +{ + u32 i; + + for (i = 0; i < tp->func_tx_queue_num; i++) + rtase_w16(tp, RTASE_INT_MITI_TX + i * 2, tp->tx_int_mit); + + for (i = 0; i < tp->func_rx_queue_num; i++) + rtase_w16(tp, RTASE_INT_MITI_RX + i * 2, tp->rx_int_mit); +} + +static void rtase_tally_counter_addr_fill(const struct rtase_private *tp) +{ + rtase_w32(tp, RTASE_DTCCR4, upper_32_bits(tp->tally_paddr)); + rtase_w32(tp, RTASE_DTCCR0, lower_32_bits(tp->tally_paddr)); +} + static void rtase_tally_counter_clear(const struct rtase_private *tp) { u32 cmd = lower_32_bits(tp->tally_paddr); @@ -480,6 +497,119 @@ static void rtase_tally_counter_clear(const struct rtase_private *tp) rtase_w32(tp, RTASE_DTCCR0, cmd | RTASE_COUNTER_RESET); } +static void rtase_desc_addr_fill(const struct rtase_private *tp) +{ + const struct rtase_ring *ring; + u16 i, cmd, val; + int err; + + for (i = 0; i < tp->func_tx_queue_num; i++) { + ring = &tp->tx_ring[i]; + + rtase_w32(tp, RTASE_TX_DESC_ADDR0, + lower_32_bits(ring->phy_addr)); + rtase_w32(tp, RTASE_TX_DESC_ADDR4, + upper_32_bits(ring->phy_addr)); + + cmd = i | RTASE_TX_DESC_CMD_WE | RTASE_TX_DESC_CMD_CS; + rtase_w16(tp, RTASE_TX_DESC_COMMAND, cmd); + + err = read_poll_timeout(rtase_r16, val, + !(val & RTASE_TX_DESC_CMD_CS), 10, + 1000, false, tp, + RTASE_TX_DESC_COMMAND); + + if (err == -ETIMEDOUT) + netdev_err(tp->dev, + "error occurred in fill tx descriptor\n"); + } + + for (i = 0; i < tp->func_rx_queue_num; i++) { + ring = &tp->rx_ring[i]; + + if (i == 0) { + rtase_w32(tp, RTASE_Q0_RX_DESC_ADDR0, + lower_32_bits(ring->phy_addr)); + rtase_w32(tp, RTASE_Q0_RX_DESC_ADDR4, + upper_32_bits(ring->phy_addr)); + } else { + rtase_w32(tp, (RTASE_Q1_RX_DESC_ADDR0 + ((i - 1) * 8)), + lower_32_bits(ring->phy_addr)); + rtase_w32(tp, (RTASE_Q1_RX_DESC_ADDR4 + ((i - 1) * 8)), + upper_32_bits(ring->phy_addr)); + } + } +} + +static void rtase_hw_set_features(const struct net_device *dev, + netdev_features_t features) +{ + const struct rtase_private *tp = netdev_priv(dev); + u16 rx_config, val; + + rx_config = rtase_r16(tp, RTASE_RX_CONFIG_0); + if (features & NETIF_F_RXALL) + rx_config |= (RTASE_ACCEPT_ERR | RTASE_ACCEPT_RUNT); + else + rx_config &= ~(RTASE_ACCEPT_ERR | RTASE_ACCEPT_RUNT); + + rtase_w16(tp, RTASE_RX_CONFIG_0, rx_config); + + val = rtase_r16(tp, RTASE_CPLUS_CMD); + if (features & NETIF_F_RXCSUM) + rtase_w16(tp, RTASE_CPLUS_CMD, val | RTASE_RX_CHKSUM); + else + rtase_w16(tp, RTASE_CPLUS_CMD, val & ~RTASE_RX_CHKSUM); + + rx_config = rtase_r16(tp, RTASE_RX_CONFIG_1); + if (dev->features & NETIF_F_HW_VLAN_CTAG_RX) + rx_config |= (RTASE_INNER_VLAN_DETAG_EN | + RTASE_OUTER_VLAN_DETAG_EN); + else + rx_config &= ~(RTASE_INNER_VLAN_DETAG_EN | + RTASE_OUTER_VLAN_DETAG_EN); + + rtase_w16(tp, RTASE_RX_CONFIG_1, rx_config); +} + +static void rtase_hw_set_rx_packet_filter(struct net_device *dev) +{ + u32 mc_filter[2] = { 0xFFFFFFFF, 0xFFFFFFFF }; + struct rtase_private *tp = netdev_priv(dev); + u16 rx_mode; + + rx_mode = rtase_r16(tp, RTASE_RX_CONFIG_0) & ~RTASE_ACCEPT_MASK; + rx_mode |= RTASE_ACCEPT_BROADCAST | RTASE_ACCEPT_MYPHYS; + + if (dev->flags & IFF_PROMISC) { + rx_mode |= RTASE_ACCEPT_MULTICAST | RTASE_ACCEPT_ALLPHYS; + } else if (dev->flags & IFF_ALLMULTI) { + rx_mode |= RTASE_ACCEPT_MULTICAST; + } else { + struct netdev_hw_addr *hw_addr; + + mc_filter[0] = 0; + mc_filter[1] = 0; + + netdev_for_each_mc_addr(hw_addr, dev) { + u32 bit_nr = eth_hw_addr_crc(hw_addr); + u32 idx = u32_get_bits(bit_nr, BIT(31)); + u32 bit = u32_get_bits(bit_nr, + RTASE_MULTICAST_FILTER_MASK); + + mc_filter[idx] |= BIT(bit); + rx_mode |= RTASE_ACCEPT_MULTICAST; + } + } + + if (dev->features & NETIF_F_RXALL) + rx_mode |= RTASE_ACCEPT_ERR | RTASE_ACCEPT_RUNT; + + rtase_w32(tp, RTASE_MAR0, swab32(mc_filter[1])); + rtase_w32(tp, RTASE_MAR1, swab32(mc_filter[0])); + rtase_w16(tp, RTASE_RX_CONFIG_0, rx_mode); +} + static void rtase_irq_dis_and_clear(const struct rtase_private *tp) { const struct rtase_int_vector *ivec = &tp->int_vector[0]; @@ -554,6 +684,114 @@ static void rtase_hw_reset(const struct net_device *dev) rtase_nic_reset(dev); } +static void rtase_set_rx_queue(const struct rtase_private *tp) +{ + u16 reg_data; + + reg_data = rtase_r16(tp, RTASE_FCR); + switch (tp->func_rx_queue_num) { + case 1: + u16p_replace_bits(®_data, 0x1, RTASE_FCR_RXQ_MASK); + break; + case 2: + u16p_replace_bits(®_data, 0x2, RTASE_FCR_RXQ_MASK); + break; + case 4: + u16p_replace_bits(®_data, 0x3, RTASE_FCR_RXQ_MASK); + break; + } + rtase_w16(tp, RTASE_FCR, reg_data); +} + +static void rtase_set_tx_queue(const struct rtase_private *tp) +{ + u16 reg_data; + + reg_data = rtase_r16(tp, RTASE_TX_CONFIG_1); + switch (tp->tx_queue_ctrl) { + case 1: + u16p_replace_bits(®_data, 0x0, RTASE_TC_MODE_MASK); + break; + case 2: + u16p_replace_bits(®_data, 0x1, RTASE_TC_MODE_MASK); + break; + case 3: + case 4: + u16p_replace_bits(®_data, 0x2, RTASE_TC_MODE_MASK); + break; + default: + u16p_replace_bits(®_data, 0x3, RTASE_TC_MODE_MASK); + break; + } + rtase_w16(tp, RTASE_TX_CONFIG_1, reg_data); +} + +static void rtase_hw_config(struct net_device *dev) +{ + const struct rtase_private *tp = netdev_priv(dev); + u32 reg_data32; + u16 reg_data16; + + rtase_hw_reset(dev); + + /* set rx dma burst */ + reg_data16 = rtase_r16(tp, RTASE_RX_CONFIG_0); + reg_data16 &= ~(RTASE_RX_SINGLE_TAG | RTASE_RX_SINGLE_FETCH); + u16p_replace_bits(®_data16, RTASE_RX_DMA_BURST_256, + RTASE_RX_MX_DMA_MASK); + rtase_w16(tp, RTASE_RX_CONFIG_0, reg_data16); + + /* new rx descritpor */ + reg_data16 = rtase_r16(tp, RTASE_RX_CONFIG_1); + reg_data16 |= RTASE_RX_NEW_DESC_FORMAT_EN | RTASE_PCIE_NEW_FLOW; + u16p_replace_bits(®_data16, 0xF, RTASE_RX_MAX_FETCH_DESC_MASK); + rtase_w16(tp, RTASE_RX_CONFIG_1, reg_data16); + + rtase_set_rx_queue(tp); + + rtase_interrupt_mitigation(tp); + + /* set tx dma burst size and interframe gap time */ + reg_data32 = rtase_r32(tp, RTASE_TX_CONFIG_0); + u32p_replace_bits(®_data32, RTASE_TX_DMA_BURST_UNLIMITED, + RTASE_TX_DMA_MASK); + u32p_replace_bits(®_data32, RTASE_INTERFRAMEGAP, + RTASE_TX_INTER_FRAME_GAP_MASK); + rtase_w32(tp, RTASE_TX_CONFIG_0, reg_data32); + + /* new tx descriptor */ + reg_data16 = rtase_r16(tp, RTASE_TFUN_CTRL); + rtase_w16(tp, RTASE_TFUN_CTRL, reg_data16 | + RTASE_TX_NEW_DESC_FORMAT_EN); + + /* tx fetch desc number */ + rtase_w8(tp, RTASE_TDFNR, 0x10); + + /* tag num select */ + reg_data16 = rtase_r16(tp, RTASE_MTPS); + u16p_replace_bits(®_data16, 0x4, RTASE_TAG_NUM_SEL_MASK); + rtase_w16(tp, RTASE_MTPS, reg_data16); + + rtase_set_tx_queue(tp); + + rtase_w16(tp, RTASE_TOKSEL, 0x5555); + + rtase_tally_counter_addr_fill(tp); + rtase_desc_addr_fill(tp); + rtase_hw_set_features(dev, dev->features); + + /* enable flow control */ + reg_data16 = rtase_r16(tp, RTASE_CPLUS_CMD); + reg_data16 |= (RTASE_FORCE_TXFLOW_EN | RTASE_FORCE_RXFLOW_EN); + rtase_w16(tp, RTASE_CPLUS_CMD, reg_data16); + /* set near fifo threshold - rx missed issue. */ + rtase_w16(tp, RTASE_RFIFONFULL, 0x190); + + rtase_w16(tp, RTASE_RMS, tp->rx_buf_sz); + + rtase_hw_set_rx_packet_filter(dev); +} + static void rtase_nic_enable(const struct net_device *dev) { const struct rtase_private *tp = netdev_priv(dev); From patchwork Fri May 17 07:52:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666696 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8CE64179AB; Fri, 17 May 2024 07:56:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932594; cv=none; b=IvuECdkwfoGJm3Dc57N4TMPqc93Zdir2cc5ZLgHDYR9/6XCQeAU4RhZGmNBBsrhcrUCUOW7ydgzjSz/vz+b2o4NwZGXbS1r6NNBgwOJk4cd2Ki75MnJ6vdclJPuGILH6wHKt46lJxvBGtEio7lZicvWqigEyVe1q+22EIend1RI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932594; c=relaxed/simple; bh=PPZpA9gpRKbQHS4AZlr91GWpuF1wJuLwHvRWmDaTFEc=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=FNC1FTMz0kG6fadaXaGkii7Oa2eok7VhUEhC0so2lPu75e3nQSEQr9NH9TO4j6uuzhVFivaRFwSTEMX/3lm9HJiBfRJJBaULcNGCnemhbKIA7+qrI6IszoPTQKpftjS9OGGMe2n5KGLNGWV0YhR5EvdmLtAQdpgvFsVcLFPrvFg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7u8Eo92158899, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7u8Eo92158899 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:56:08 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:56:09 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:56:09 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 06/13] rtase: Implement .ndo_start_xmit function Date: Fri, 17 May 2024 15:52:55 +0800 Message-ID: <20240517075302.7653-7-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36505.realtek.com.tw (172.21.6.25) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Implement .ndo_start_xmit function to fill the information of the packet to be transmitted into the tx descriptor, and then the hardware will transmit the packet using the information in the tx descriptor. In addition, we also implemented the tx_handler function to enable the tx descriptor to be reused. Signed-off-by: Justin Lai --- .../net/ethernet/realtek/rtase/rtase_main.c | 285 ++++++++++++++++++ 1 file changed, 285 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c index 0f02563b9444..fe9a5bd645e2 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -255,6 +255,68 @@ static void rtase_mark_to_asic(union rtase_rx_desc *desc, u32 rx_buf_sz) cpu_to_le32(RTASE_DESC_OWN | eor | rx_buf_sz)); } +static u32 rtase_tx_avail(struct rtase_ring *ring) +{ + return READ_ONCE(ring->dirty_idx) + RTASE_NUM_DESC - + READ_ONCE(ring->cur_idx); +} + +static int tx_handler(struct rtase_ring *ring, int budget) +{ + const struct rtase_private *tp = ring->ivec->tp; + struct net_device *dev = tp->dev; + u32 dirty_tx, tx_left; + u32 bytes_compl = 0; + u32 pkts_compl = 0; + int workdone = 0; + + dirty_tx = ring->dirty_idx; + tx_left = READ_ONCE(ring->cur_idx) - dirty_tx; + + while (tx_left > 0) { + u32 entry = dirty_tx % RTASE_NUM_DESC; + struct rtase_tx_desc *desc = ring->desc + + sizeof(struct rtase_tx_desc) * entry; + u32 status; + + status = le32_to_cpu(desc->opts1); + + if (status & RTASE_DESC_OWN) + break; + + rtase_unmap_tx_skb(tp->pdev, ring->mis.len[entry], desc); + ring->mis.len[entry] = 0; + if (ring->skbuff[entry]) { + pkts_compl++; + bytes_compl += ring->skbuff[entry]->len; + napi_consume_skb(ring->skbuff[entry], budget); + ring->skbuff[entry] = NULL; + } + + dirty_tx++; + tx_left--; + workdone++; + + if (workdone == RTASE_TX_BUDGET_DEFAULT) + break; + } + + if (ring->dirty_idx != dirty_tx) { + dev_sw_netstats_tx_add(dev, pkts_compl, bytes_compl); + WRITE_ONCE(ring->dirty_idx, dirty_tx); + + netif_subqueue_completed_wake(dev, ring->index, pkts_compl, + bytes_compl, + rtase_tx_avail(ring), + RTASE_TX_START_THRS); + + if (ring->cur_idx != dirty_tx) + rtase_w8(tp, RTASE_TPPOLL, BIT(ring->index)); + } + + return 0; +} + static void rtase_tx_desc_init(struct rtase_private *tp, u16 idx) { struct rtase_ring *ring = &tp->tx_ring[idx]; @@ -1013,6 +1075,228 @@ static int rtase_close(struct net_device *dev) return 0; } +static u32 rtase_tx_vlan_tag(const struct rtase_private *tp, + const struct sk_buff *skb) +{ + return (skb_vlan_tag_present(skb)) ? + (RTASE_TX_VLAN_TAG | swab16(skb_vlan_tag_get(skb))) : 0x00; +} + +static u32 rtase_tx_csum(struct sk_buff *skb, const struct net_device *dev) +{ + u32 csum_cmd = 0; + u8 ip_protocol; + + switch (vlan_get_protocol(skb)) { + case htons(ETH_P_IP): + csum_cmd = RTASE_TX_IPCS_C; + ip_protocol = ip_hdr(skb)->protocol; + break; + + case htons(ETH_P_IPV6): + csum_cmd = RTASE_TX_IPV6F_C; + ip_protocol = ipv6_hdr(skb)->nexthdr; + break; + + default: + ip_protocol = IPPROTO_RAW; + break; + } + + if (ip_protocol == IPPROTO_TCP) + csum_cmd |= RTASE_TX_TCPCS_C; + else if (ip_protocol == IPPROTO_UDP) + csum_cmd |= RTASE_TX_UDPCS_C; + + csum_cmd |= u32_encode_bits(skb_transport_offset(skb), + RTASE_TCPHO_MASK); + + return csum_cmd; +} + +static int rtase_xmit_frags(struct rtase_ring *ring, struct sk_buff *skb, + u32 opts1, u32 opts2) +{ + const struct skb_shared_info *info = skb_shinfo(skb); + const struct rtase_private *tp = ring->ivec->tp; + const u8 nr_frags = info->nr_frags; + struct rtase_tx_desc *txd = NULL; + u32 cur_frag, entry; + + entry = ring->cur_idx; + for (cur_frag = 0; cur_frag < nr_frags; cur_frag++) { + const skb_frag_t *frag = &info->frags[cur_frag]; + dma_addr_t mapping; + u32 status, len; + void *addr; + + entry = (entry + 1) % RTASE_NUM_DESC; + + txd = ring->desc + sizeof(struct rtase_tx_desc) * entry; + len = skb_frag_size(frag); + addr = skb_frag_address(frag); + mapping = dma_map_single(&tp->pdev->dev, addr, len, + DMA_TO_DEVICE); + + if (unlikely(dma_mapping_error(&tp->pdev->dev, mapping))) { + if (unlikely(net_ratelimit())) + netdev_err(tp->dev, + "Failed to map TX fragments DMA!\n"); + + goto err_out; + } + + if (((entry + 1) % RTASE_NUM_DESC) == 0) + status = (opts1 | len | RTASE_RING_END); + else + status = opts1 | len; + + if (cur_frag == (nr_frags - 1)) { + ring->skbuff[entry] = skb; + status |= RTASE_TX_LAST_FRAG; + } + + ring->mis.len[entry] = len; + txd->addr = cpu_to_le64(mapping); + txd->opts2 = cpu_to_le32(opts2); + + /* make sure the operating fields have been updated */ + dma_wmb(); + txd->opts1 = cpu_to_le32(status); + } + + return cur_frag; + +err_out: + rtase_tx_clear_range(ring, ring->cur_idx + 1, cur_frag); + return -EIO; +} + +static netdev_tx_t rtase_start_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + struct skb_shared_info *shinfo = skb_shinfo(skb); + struct rtase_private *tp = netdev_priv(dev); + u32 q_idx, entry, len, opts1, opts2; + struct netdev_queue *tx_queue; + bool stop_queue, door_bell; + u32 mss = shinfo->gso_size; + struct rtase_tx_desc *txd; + struct rtase_ring *ring; + dma_addr_t mapping; + int frags; + + /* multiqueues */ + q_idx = skb_get_queue_mapping(skb); + ring = &tp->tx_ring[q_idx]; + tx_queue = netdev_get_tx_queue(dev, q_idx); + + if (unlikely(!rtase_tx_avail(ring))) { + if (net_ratelimit()) + netdev_err(dev, "BUG! Tx Ring full when queue awake!\n"); + goto err_stop; + } + + entry = ring->cur_idx % RTASE_NUM_DESC; + txd = ring->desc + sizeof(struct rtase_tx_desc) * entry; + + opts1 = RTASE_DESC_OWN; + opts2 = rtase_tx_vlan_tag(tp, skb); + + /* tcp segmentation offload (or tcp large send) */ + if (mss) { + if (shinfo->gso_type & SKB_GSO_TCPV4) { + opts1 |= RTASE_GIANT_SEND_V4; + } else if (shinfo->gso_type & SKB_GSO_TCPV6) { + if (skb_cow_head(skb, 0)) + goto err_dma_0; + + tcp_v6_gso_csum_prep(skb); + opts1 |= RTASE_GIANT_SEND_V6; + } else { + WARN_ON_ONCE(1); + } + + opts1 |= u32_encode_bits(skb_transport_offset(skb), + RTASE_TCPHO_MASK); + opts2 |= u32_encode_bits(mss, RTASE_MSS_MASK); + } else if (skb->ip_summed == CHECKSUM_PARTIAL) { + opts2 |= rtase_tx_csum(skb, dev); + } + + frags = rtase_xmit_frags(ring, skb, opts1, opts2); + if (unlikely(frags < 0)) + goto err_dma_0; + + if (frags) { + len = skb_headlen(skb); + opts1 |= RTASE_TX_FIRST_FRAG; + } else { + len = skb->len; + ring->skbuff[entry] = skb; + opts1 |= RTASE_TX_FIRST_FRAG | RTASE_TX_LAST_FRAG; + } + + if (((entry + 1) % RTASE_NUM_DESC) == 0) + opts1 |= (len | RTASE_RING_END); + else + opts1 |= len; + + mapping = dma_map_single(&tp->pdev->dev, skb->data, len, + DMA_TO_DEVICE); + + if (unlikely(dma_mapping_error(&tp->pdev->dev, mapping))) { + if (unlikely(net_ratelimit())) + netdev_err(dev, "Failed to map TX DMA!\n"); + + goto err_dma_1; + } + + ring->mis.len[entry] = len; + txd->addr = cpu_to_le64(mapping); + txd->opts2 = cpu_to_le32(opts2); + txd->opts1 = cpu_to_le32(opts1 & ~RTASE_DESC_OWN); + + /* make sure the operating fields have been updated */ + dma_wmb(); + + door_bell = __netdev_tx_sent_queue(tx_queue, skb->len, + netdev_xmit_more()); + + txd->opts1 = cpu_to_le32(opts1); + + skb_tx_timestamp(skb); + + /* tx needs to see descriptor changes before updated cur_idx */ + smp_wmb(); + + WRITE_ONCE(ring->cur_idx, ring->cur_idx + frags + 1); + + stop_queue = !netif_subqueue_maybe_stop(dev, ring->index, + rtase_tx_avail(ring), + RTASE_TX_STOP_THRS, + RTASE_TX_START_THRS); + + if (door_bell || stop_queue) + rtase_w8(tp, RTASE_TPPOLL, BIT(ring->index)); + + return NETDEV_TX_OK; + +err_dma_1: + ring->skbuff[entry] = NULL; + rtase_tx_clear_range(ring, ring->cur_idx + 1, frags); + +err_dma_0: + dev->stats.tx_dropped++; + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + +err_stop: + netif_stop_queue(dev); + dev->stats.tx_dropped++; + return NETDEV_TX_BUSY; +} + static void rtase_enable_eem_write(const struct rtase_private *tp) { u8 val; @@ -1064,6 +1348,7 @@ static void rtase_netpoll(struct net_device *dev) static const struct net_device_ops rtase_netdev_ops = { .ndo_open = rtase_open, .ndo_stop = rtase_close, + .ndo_start_xmit = rtase_start_xmit, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = rtase_netpoll, #endif From patchwork Fri May 17 07:52:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666697 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DF89B1803A; Fri, 17 May 2024 07:57:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932626; cv=none; b=YAnLmhw3sKbcXA/3llbmp4WkIfa9vu9WMgPhA+LEhgZxkUHlt2telf7+xF0FU1LhOpxNHfFGTl5h64BoOHT5O4q5A5W5VMjNspq96qaCvqebiJjJaPtbmgF291GQuFSgGVAdQqut1XtB3w+DwmMh7iIs3+hnhyN4P93vmC2sZso= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932626; c=relaxed/simple; bh=nRXR2LjG3zEYoBYs/eBWZZzXBm17qacK7QdMd8NBzuk=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=A5ysY7O/LHR2R+kNC7DC1Y1l2/PQQvk11fYQhGKysR1qVf1B1jQn265ErCcR+vBE0EndmXas2S85zLCI5nCYZMG/drMnyNrt0wMylFpY52Rs2ni1FGlxWxMb0ZVZ0QemYdH26EOz+i9zWyAsxiVrRTok0jQoUGU5aDFPIvVOLZo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7uhIE32159345, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7uhIE32159345 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:56:43 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:56:43 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:56:42 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 07/13] rtase: Implement a function to receive packets Date: Fri, 17 May 2024 15:52:56 +0800 Message-ID: <20240517075302.7653-8-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36505.realtek.com.tw (172.21.6.25) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Implement rx_handler to read the information of the rx descriptor, thereby checking the packet accordingly and storing the packet in the socket buffer to complete the reception of the packet. Signed-off-by: Justin Lai --- .../net/ethernet/realtek/rtase/rtase_main.c | 146 ++++++++++++++++++ 1 file changed, 146 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c index fe9a5bd645e2..266272d8e0ab 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -457,6 +457,152 @@ static void rtase_rx_ring_clear(struct rtase_ring *ring) } } +static int rtase_fragmented_frame(u32 status) +{ + return (status & (RTASE_RX_FIRST_FRAG | RTASE_RX_LAST_FRAG)) != + (RTASE_RX_FIRST_FRAG | RTASE_RX_LAST_FRAG); +} + +static void rtase_rx_csum(const struct rtase_private *tp, struct sk_buff *skb, + const union rtase_rx_desc *desc) +{ + u32 opts2 = le32_to_cpu(desc->desc_status.opts2); + + /* rx csum offload */ + if (((opts2 & RTASE_RX_V4F) && !(opts2 & RTASE_RX_IPF)) || + (opts2 & RTASE_RX_V6F)) { + if (((opts2 & RTASE_RX_TCPT) && !(opts2 & RTASE_RX_TCPF)) || + ((opts2 & RTASE_RX_UDPT) && !(opts2 & RTASE_RX_UDPF))) { + skb->ip_summed = CHECKSUM_UNNECESSARY; + } else { + skb->ip_summed = CHECKSUM_NONE; + } + } else { + skb->ip_summed = CHECKSUM_NONE; + } +} + +static void rtase_rx_vlan_skb(union rtase_rx_desc *desc, struct sk_buff *skb) +{ + u32 opts2 = le32_to_cpu(desc->desc_status.opts2); + + if (!(opts2 & RTASE_RX_VLAN_TAG)) + return; + + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), + swab16(opts2 & RTASE_VLAN_TAG_MASK)); +} + +static void rtase_rx_skb(const struct rtase_ring *ring, struct sk_buff *skb) +{ + struct rtase_int_vector *ivec = ring->ivec; + + napi_gro_receive(&ivec->napi, skb); +} + +static int rx_handler(struct rtase_ring *ring, int budget) +{ + const struct rtase_private *tp = ring->ivec->tp; + union rtase_rx_desc *desc_base = ring->desc; + u32 pkt_size, cur_rx, delta, entry, status; + struct net_device *dev = tp->dev; + union rtase_rx_desc *desc; + struct sk_buff *skb; + int workdone = 0; + + cur_rx = ring->cur_idx; + entry = cur_rx % RTASE_NUM_DESC; + desc = &desc_base[entry]; + + do { + /* make sure discriptor has been updated */ + rmb(); + status = le32_to_cpu(desc->desc_status.opts1); + + if (status & RTASE_DESC_OWN) + break; + + if (unlikely(status & RTASE_RX_RES)) { + if (net_ratelimit()) + netdev_warn(dev, "Rx ERROR. status = %08x\n", + status); + + dev->stats.rx_errors++; + + if (status & (RTASE_RX_RWT | RTASE_RX_RUNT)) + dev->stats.rx_length_errors++; + + if (status & RTASE_RX_CRC) + dev->stats.rx_crc_errors++; + + if (dev->features & NETIF_F_RXALL) + goto process_pkt; + + rtase_mark_to_asic(desc, tp->rx_buf_sz); + goto skip_process_pkt; + } + +process_pkt: + pkt_size = status & RTASE_RX_PKT_SIZE_MASK; + if (likely(!(dev->features & NETIF_F_RXFCS))) + pkt_size -= ETH_FCS_LEN; + + /* the driver does not support incoming fragmented + * frames. they are seen as a symptom of over-mtu + * sized frames + */ + if (unlikely(rtase_fragmented_frame(status))) { + dev->stats.rx_dropped++; + dev->stats.rx_length_errors++; + rtase_mark_to_asic(desc, tp->rx_buf_sz); + continue; + } + + skb = ring->skbuff[entry]; + dma_sync_single_for_cpu(&tp->pdev->dev, + ring->mis.data_phy_addr[entry], + tp->rx_buf_sz, DMA_FROM_DEVICE); + + ring->skbuff[entry] = NULL; + + if (dev->features & NETIF_F_RXCSUM) + rtase_rx_csum(tp, skb, desc); + + skb->dev = dev; + skb_put(skb, pkt_size); + skb_mark_for_recycle(skb); + skb->protocol = eth_type_trans(skb, dev); + + if (skb->pkt_type == PACKET_MULTICAST) + dev->stats.multicast++; + + rtase_rx_vlan_skb(desc, skb); + rtase_rx_skb(ring, skb); + + dev_sw_netstats_rx_add(dev, pkt_size); + +skip_process_pkt: + workdone++; + cur_rx++; + entry = cur_rx % RTASE_NUM_DESC; + desc = ring->desc + sizeof(union rtase_rx_desc) * entry; + prefetch(desc); + } while (workdone != budget); + + ring->cur_idx = cur_rx; + delta = rtase_rx_ring_fill(ring, ring->dirty_idx, ring->cur_idx, 1); + + if (!delta && workdone) + netdev_info(dev, "no Rx buffer allocated\n"); + + ring->dirty_idx += delta; + + if ((ring->dirty_idx + RTASE_NUM_DESC) == ring->cur_idx) + netdev_emerg(dev, "Rx buffers exhausted\n"); + + return workdone; +} + static void rtase_rx_desc_init(struct rtase_private *tp, u16 idx) { struct rtase_ring *ring = &tp->rx_ring[idx]; From patchwork Fri May 17 07:52:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666698 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 05C2B17C61; Fri, 17 May 2024 07:57:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932666; cv=none; b=oMcdBgLOuBXEcXmXbpRNhl8ayJKmFm5Tuwy6/oz4RutyhfI1GajVgNnuaHNo3e5wFWpmeUkZ0sS/xYRVGA2YThq/m6mk86e85db5CPCm7DZH7GlEewdA3unY3HlAxxRyl0dhZB2Ur3KTZxYjtfhgZkaHJnEcPlkQOoO6JkTzlRY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932666; c=relaxed/simple; bh=CxQ2EeVST1QiihF3gGRlgjv1qgNS1HqIWm5Tb/jhkUA=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=aV3lPto4au/EROzQhu8+X/qOFI6NQFQXIQw3Ce+JJvyJK9X3jNZBwBn4lX4ZSHmP5LNBLSR4Sn7GFcTas0L6ktqLNeg7yekLy3bVmVcT/Qcw+IgVcpHAYfDOKw2XmYhR0F5HEpr4DbDVcAjOc42GzUpHBX6M7t6+5NyOgWT2wwI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7vHFU12160608, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7vHFU12160608 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:57:17 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:57:17 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:57:17 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 08/13] rtase: Implement net_device_ops Date: Fri, 17 May 2024 15:52:57 +0800 Message-ID: <20240517075302.7653-9-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36505.realtek.com.tw (172.21.6.25) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org 1. Implement .ndo_set_rx_mode so that the device can change address list filtering. 2. Implement .ndo_set_mac_address so that mac address can be changed. 3. Implement .ndo_change_mtu so that mtu can be changed. 4. Implement .ndo_tx_timeout to perform related processing when the transmitter does not make any progress. 5. Implement .ndo_get_stats64 to provide statistics that are called when the user wants to get network device usage. 6. Implement .ndo_vlan_rx_add_vid to register VLAN ID when the device supports VLAN filtering. 7. Implement .ndo_vlan_rx_kill_vid to unregister VLAN ID when the device supports VLAN filtering. 8. Implement the .ndo_setup_tc to enable setting any "tc" scheduler, classifier or action on dev. 9. Implement .ndo_fix_features enables adjusting requested feature flags based on device-specific constraints. 10. Implement .ndo_set_features enables updating device configuration to new features. Signed-off-by: Justin Lai --- .../net/ethernet/realtek/rtase/rtase_main.c | 237 ++++++++++++++++++ 1 file changed, 237 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c index 266272d8e0ab..2ef02cdbe322 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -1443,6 +1443,11 @@ static netdev_tx_t rtase_start_xmit(struct sk_buff *skb, return NETDEV_TX_BUSY; } +static void rtase_set_rx_mode(struct net_device *dev) +{ + rtase_hw_set_rx_packet_filter(dev); +} + static void rtase_enable_eem_write(const struct rtase_private *tp) { u8 val; @@ -1475,6 +1480,205 @@ static void rtase_rar_set(const struct rtase_private *tp, const u8 *addr) rtase_w16(tp, RTASE_LBK_CTRL, RTASE_LBK_ATLD | RTASE_LBK_CLR); } +static int rtase_set_mac_address(struct net_device *dev, void *p) +{ + struct rtase_private *tp = netdev_priv(dev); + int ret; + + ret = eth_mac_addr(dev, p); + if (ret) + return ret; + + rtase_rar_set(tp, dev->dev_addr); + + return 0; +} + +static int rtase_change_mtu(struct net_device *dev, int new_mtu) +{ + dev->mtu = new_mtu; + + netdev_update_features(dev); + + return 0; +} + +static void rtase_wait_for_quiescence(const struct net_device *dev) +{ + struct rtase_private *tp = netdev_priv(dev); + struct rtase_int_vector *ivec; + u32 i; + + for (i = 0; i < tp->int_nums; i++) { + ivec = &tp->int_vector[i]; + synchronize_irq(ivec->irq); + /* wait for any pending NAPI task to complete */ + napi_disable(&ivec->napi); + } + + rtase_irq_dis_and_clear(tp); + + for (i = 0; i < tp->int_nums; i++) { + ivec = &tp->int_vector[i]; + napi_enable(&ivec->napi); + } +} + +static void rtase_sw_reset(struct net_device *dev) +{ + struct rtase_private *tp = netdev_priv(dev); + int ret; + + netif_stop_queue(dev); + netif_carrier_off(dev); + rtase_hw_reset(dev); + + /* let's wait a bit while any (async) irq lands on */ + rtase_wait_for_quiescence(dev); + rtase_tx_clear(tp); + rtase_rx_clear(tp); + + ret = rtase_init_ring(dev); + if (ret) { + netdev_err(dev, "unable to init ring\n"); + rtase_free_desc(tp); + return; + } + + rtase_hw_config(dev); + /* always link, so start to transmit & receive */ + rtase_hw_start(dev); + + netif_carrier_on(dev); + netif_wake_queue(dev); +} + +static void rtase_dump_tally_counter(const struct rtase_private *tp) +{ + dma_addr_t paddr = tp->tally_paddr; + u32 cmd = lower_32_bits(paddr); + u32 val; + int err; + + rtase_w32(tp, RTASE_DTCCR4, upper_32_bits(paddr)); + rtase_w32(tp, RTASE_DTCCR0, cmd); + rtase_w32(tp, RTASE_DTCCR0, cmd | RTASE_COUNTER_DUMP); + + err = read_poll_timeout(rtase_r32, val, !(val & RTASE_COUNTER_DUMP), + 10, 250, false, tp, RTASE_DTCCR0); + + if (err == -ETIMEDOUT) + netdev_err(tp->dev, "error occurred in dump tally counter\n"); +} + +static void rtase_dump_state(const struct net_device *dev) +{ + const struct rtase_private *tp = netdev_priv(dev); + int max_reg_size = RTASE_PCI_REGS_SIZE; + const struct rtase_counters *counters; + const struct rtase_ring *ring; + u32 dword_rd; + int n = 0; + + ring = &tp->tx_ring[0]; + netdev_err(dev, "Tx descriptor info:\n"); + netdev_err(dev, "Tx curIdx = 0x%x\n", ring->cur_idx); + netdev_err(dev, "Tx dirtyIdx = 0x%x\n", ring->dirty_idx); + netdev_err(dev, "Tx phyAddr = %pad\n", &ring->phy_addr); + + ring = &tp->rx_ring[0]; + netdev_err(dev, "Rx descriptor info:\n"); + netdev_err(dev, "Rx curIdx = 0x%x\n", ring->cur_idx); + netdev_err(dev, "Rx dirtyIdx = 0x%x\n", ring->dirty_idx); + netdev_err(dev, "Rx phyAddr = %pad\n", &ring->phy_addr); + + netdev_err(dev, "Device Registers:\n"); + netdev_err(dev, "Chip Command = 0x%02x\n", + rtase_r8(tp, RTASE_CHIP_CMD)); + netdev_err(dev, "IMR = %08x\n", rtase_r32(tp, RTASE_IMR0)); + netdev_err(dev, "ISR = %08x\n", rtase_r32(tp, RTASE_ISR0)); + netdev_err(dev, "Boot Ctrl Reg(0xE004) = %04x\n", + rtase_r16(tp, RTASE_BOOT_CTL)); + netdev_err(dev, "EPHY ISR(0xE014) = %04x\n", + rtase_r16(tp, RTASE_EPHY_ISR)); + netdev_err(dev, "EPHY IMR(0xE016) = %04x\n", + rtase_r16(tp, RTASE_EPHY_IMR)); + netdev_err(dev, "CLKSW SET REG(0xE018) = %04x\n", + rtase_r16(tp, RTASE_CLKSW_SET)); + + netdev_err(dev, "Dump PCI Registers:\n"); + + while (n < max_reg_size) { + if ((n % RTASE_DWORD_MOD) == 0) + netdev_err(tp->dev, "0x%03x:\n", n); + + pci_read_config_dword(tp->pdev, n, &dword_rd); + netdev_err(tp->dev, "%08x\n", dword_rd); + n += 4; + } + + netdev_err(dev, "Dump tally counter:\n"); + counters = tp->tally_vaddr; + rtase_dump_tally_counter(tp); + + netdev_err(dev, "tx_packets %lld\n", + le64_to_cpu(counters->tx_packets)); + netdev_err(dev, "rx_packets %lld\n", + le64_to_cpu(counters->rx_packets)); + netdev_err(dev, "tx_errors %lld\n", + le64_to_cpu(counters->tx_errors)); + netdev_err(dev, "rx_errors %d\n", + le32_to_cpu(counters->rx_errors)); + netdev_err(dev, "rx_missed %d\n", + le16_to_cpu(counters->rx_missed)); + netdev_err(dev, "align_errors %d\n", + le16_to_cpu(counters->align_errors)); + netdev_err(dev, "tx_one_collision %d\n", + le32_to_cpu(counters->tx_one_collision)); + netdev_err(dev, "tx_multi_collision %d\n", + le32_to_cpu(counters->tx_multi_collision)); + netdev_err(dev, "rx_unicast %lld\n", + le64_to_cpu(counters->rx_unicast)); + netdev_err(dev, "rx_broadcast %lld\n", + le64_to_cpu(counters->rx_broadcast)); + netdev_err(dev, "rx_multicast %d\n", + le32_to_cpu(counters->rx_multicast)); + netdev_err(dev, "tx_aborted %d\n", + le16_to_cpu(counters->tx_aborted)); + netdev_err(dev, "tx_underun %d\n", + le16_to_cpu(counters->tx_underun)); +} + +static void rtase_tx_timeout(struct net_device *dev, unsigned int txqueue) +{ + rtase_dump_state(dev); + rtase_sw_reset(dev); +} + +static void rtase_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 *stats) +{ + const struct rtase_private *tp = netdev_priv(dev); + const struct rtase_counters *counters; + + counters = tp->tally_vaddr; + + if (!counters) + return; + + netdev_stats_to_stats64(stats, &dev->stats); + dev_fetch_sw_netstats(stats, dev->tstats); + + /* fetch additional counter values missing in stats collected by driver + * from tally counter + */ + rtase_dump_tally_counter(tp); + stats->tx_errors = le64_to_cpu(counters->tx_errors); + stats->rx_missed_errors = le16_to_cpu(counters->rx_missed); + stats->collisions = le32_to_cpu(counters->tx_multi_collision); + stats->tx_aborted_errors = le16_to_cpu(counters->tx_aborted); +} + #ifdef CONFIG_NET_POLL_CONTROLLER /* Polling 'interrupt' - used by things like netconsole to send skbs * without having to re-enable interrupts. It's not called while @@ -1491,13 +1695,46 @@ static void rtase_netpoll(struct net_device *dev) } #endif +static netdev_features_t rtase_fix_features(struct net_device *dev, + netdev_features_t features) +{ + netdev_features_t features_fix = features; + + /* not support TSO for jumbo frames */ + if (dev->mtu > ETH_DATA_LEN) + features_fix &= ~NETIF_F_ALL_TSO; + + return features_fix; +} + +static int rtase_set_features(struct net_device *dev, + netdev_features_t features) +{ + netdev_features_t features_set = features; + + features_set &= NETIF_F_RXALL | NETIF_F_RXCSUM | + NETIF_F_HW_VLAN_CTAG_RX; + + if (features_set ^ dev->features) + rtase_hw_set_features(dev, features_set); + + return 0; +} + static const struct net_device_ops rtase_netdev_ops = { .ndo_open = rtase_open, .ndo_stop = rtase_close, .ndo_start_xmit = rtase_start_xmit, + .ndo_set_rx_mode = rtase_set_rx_mode, + .ndo_set_mac_address = rtase_set_mac_address, + .ndo_change_mtu = rtase_change_mtu, + .ndo_tx_timeout = rtase_tx_timeout, + .ndo_get_stats64 = rtase_get_stats64, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = rtase_netpoll, #endif + .ndo_fix_features = rtase_fix_features, + .ndo_set_features = rtase_set_features, }; static void rtase_get_mac_address(struct net_device *dev) From patchwork Fri May 17 07:52:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666699 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A8BCA28DCA; Fri, 17 May 2024 07:58:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932694; cv=none; b=la7OSTuf1QHc/Eo4roQtwwsPJpJsHMizZVJ4K/HXKuTGGCcZ789+CQVVS9VhtoWfWWTopaclbzzU3eQcMOiQeS4mTKkd6jxx8nTS8Vvv4SiLvEATbkvWNbKcfhTQKHgWlTw6hmtDhW8VVCneVZ2C3V1q5bKDP7PelUn9uVF2lnU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932694; c=relaxed/simple; bh=cjeFXBQn53hX5Dr4JDVUnrR1PFzZM+Zup6sh4cDKVkg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=okIc+wksupbCvbwgGVDPVqVe9b6ldTe728PiuapMCtJ60QTCTwe3CosROQllxlgrX7yzOGgp1ZCBAWpCWYZils35kabVZFLc9kPxlZ7k1zRaCvebsoMg+AiJ7XVWjvV2zgIuHtl3c6LhNJOlKVEdI9pTNsuTbdwmB8edfkj3pIg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7vnsM72161379, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36506.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7vnsM72161379 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:57:49 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36506.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:57:49 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:57:48 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 09/13] rtase: Implement pci_driver suspend and resume function Date: Fri, 17 May 2024 15:52:58 +0800 Message-ID: <20240517075302.7653-10-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36506.realtek.com.tw (172.21.6.27) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Implement the pci_driver suspend function to enable the device to sleep, and implement the resume function to enable the device to resume operation. Signed-off-by: Justin Lai --- .../net/ethernet/realtek/rtase/rtase_main.c | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c index 2ef02cdbe322..b94041b1d4fd 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -2200,12 +2200,63 @@ static void rtase_shutdown(struct pci_dev *pdev) rtase_reset_interrupt(pdev, tp); } +static int rtase_suspend(struct device *device) +{ + struct net_device *dev = dev_get_drvdata(device); + + if (netif_running(dev)) { + netif_device_detach(dev); + rtase_hw_reset(dev); + } + + return 0; +} + +static int rtase_resume(struct device *device) +{ + struct net_device *dev = dev_get_drvdata(device); + struct rtase_private *tp = netdev_priv(dev); + int ret; + + /* restore last modified mac address */ + rtase_rar_set(tp, dev->dev_addr); + + if (!netif_running(dev)) + goto out; + + rtase_wait_for_quiescence(dev); + + rtase_tx_clear(tp); + rtase_rx_clear(tp); + + ret = rtase_init_ring(dev); + if (ret) { + netdev_err(dev, "unable to init ring\n"); + rtase_free_desc(tp); + return -ENOMEM; + } + + rtase_hw_config(dev); + /* always link, so start to transmit & receive */ + rtase_hw_start(dev); + + netif_device_attach(dev); +out: + + return 0; +} + +static const struct dev_pm_ops rtase_pm_ops = { + SYSTEM_SLEEP_PM_OPS(rtase_suspend, rtase_resume) +}; + static struct pci_driver rtase_pci_driver = { .name = KBUILD_MODNAME, .id_table = rtase_pci_tbl, .probe = rtase_init_one, .remove = rtase_remove_one, .shutdown = rtase_shutdown, + .driver.pm = pm_ptr(&rtase_pm_ops), }; module_pci_driver(rtase_pci_driver); From patchwork Fri May 17 07:52:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666700 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B2BCC1AAA5; Fri, 17 May 2024 07:58:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932725; cv=none; b=JFvHX0blfkVeeGLnOJi0MJ3eWe6CL8iQkxXJlcw/cLzn3az6fwkRSEznhI+dcjIEg8GFqbmdhH1+DwFWEcyVizHLa7KLorDoo5s5olnx7SsDpYQahSYZjS3ueaY5+64O9VQN3GkyA6z2F7ZRf/PUYSDhiTJoy46qDUrpUoH7O0g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932725; c=relaxed/simple; bh=Wc5GI7U8V/JnhoWOotT6w1Du4fMLUAF5FLkiNexfbU8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=g7zLLZNHYN7lxzlrhAHdh3rZDqH3HfvtPJJ6sBBm9nZy75MZiKcFcj7AODK3+QKExQUpEj4U2Qyq3ifRdl+HDdY5+3jj6Elfdp7yYMHEJGvbn8nyncB9yfEIPRE/VaV8azWUsbxQkgIGl6MtLxgHC9cDYZvDoEW7MKUGko2Glq8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7wLmL52161420, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7wLmL52161420 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:58:21 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:58:21 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:58:20 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 10/13] rtase: Implement ethtool function Date: Fri, 17 May 2024 15:52:59 +0800 Message-ID: <20240517075302.7653-11-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36506.realtek.com.tw (172.21.6.27) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Implement the ethtool function to support users to obtain network card information, including obtaining various device settings, Report whether physical link is up, Report pause parameters, Set pause parameters, Return a set of strings that describe the requested objects, Get number of strings that @get_strings will write, Return extended statistics about the device. Signed-off-by: Justin Lai Reviewed-by: Andrew Lunn --- .../net/ethernet/realtek/rtase/rtase_main.c | 103 ++++++++++++++++++ 1 file changed, 103 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c index b94041b1d4fd..52281bb64dd9 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -1757,9 +1757,112 @@ static void rtase_get_mac_address(struct net_device *dev) rtase_rar_set(tp, dev->dev_addr); } +static void rtase_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *drvinfo) +{ + const struct rtase_private *tp = netdev_priv(dev); + + strscpy(drvinfo->driver, KBUILD_MODNAME, 32); + strscpy(drvinfo->bus_info, pci_name(tp->pdev), 32); +} + +static int rtase_get_settings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) +{ + u32 supported = SUPPORTED_MII | SUPPORTED_Pause | SUPPORTED_Asym_Pause; + + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + cmd->base.speed = SPEED_5000; + cmd->base.duplex = DUPLEX_FULL; + cmd->base.port = PORT_MII; + cmd->base.autoneg = AUTONEG_DISABLE; + + return 0; +} + +static void rtase_get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + const struct rtase_private *tp = netdev_priv(dev); + u16 value = rtase_r16(tp, RTASE_CPLUS_CMD); + + pause->autoneg = AUTONEG_DISABLE; + + if ((value & (RTASE_FORCE_TXFLOW_EN | RTASE_FORCE_RXFLOW_EN)) == + (RTASE_FORCE_TXFLOW_EN | RTASE_FORCE_RXFLOW_EN)) { + pause->rx_pause = 1; + pause->tx_pause = 1; + } else if ((value & RTASE_FORCE_TXFLOW_EN)) { + pause->tx_pause = 1; + } else if ((value & RTASE_FORCE_RXFLOW_EN)) { + pause->rx_pause = 1; + } +} + +static int rtase_set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + const struct rtase_private *tp = netdev_priv(dev); + u16 value = rtase_r16(tp, RTASE_CPLUS_CMD); + + if (pause->autoneg) + return -EOPNOTSUPP; + + value &= ~(RTASE_FORCE_TXFLOW_EN | RTASE_FORCE_RXFLOW_EN); + + if (pause->tx_pause) + value |= RTASE_FORCE_TXFLOW_EN; + + if (pause->rx_pause) + value |= RTASE_FORCE_RXFLOW_EN; + + rtase_w16(tp, RTASE_CPLUS_CMD, value); + return 0; +} + +static void rtase_get_eth_mac_stats(struct net_device *dev, + struct ethtool_eth_mac_stats *stats) +{ + struct rtase_private *tp = netdev_priv(dev); + const struct rtase_counters *counters; + + counters = tp->tally_vaddr; + if (!counters) + return; + + rtase_dump_tally_counter(tp); + + stats->FramesTransmittedOK = le64_to_cpu(counters->tx_packets); + stats->SingleCollisionFrames = le32_to_cpu(counters->tx_one_collision); + stats->MultipleCollisionFrames = + le32_to_cpu(counters->tx_multi_collision); + stats->FramesReceivedOK = le64_to_cpu(counters->rx_packets); + stats->FrameCheckSequenceErrors = le32_to_cpu(counters->rx_errors); + stats->AlignmentErrors = le16_to_cpu(counters->align_errors); + stats->FramesAbortedDueToXSColls = le16_to_cpu(counters->tx_aborted); + stats->FramesLostDueToIntMACXmitError = + le64_to_cpu(counters->tx_errors); + stats->FramesLostDueToIntMACRcvError = + le16_to_cpu(counters->rx_missed); + stats->MulticastFramesReceivedOK = le32_to_cpu(counters->rx_multicast); + stats->BroadcastFramesReceivedOK = le64_to_cpu(counters->rx_broadcast); +} + +static const struct ethtool_ops rtase_ethtool_ops = { + .get_drvinfo = rtase_get_drvinfo, + .get_link = ethtool_op_get_link, + .get_link_ksettings = rtase_get_settings, + .get_pauseparam = rtase_get_pauseparam, + .set_pauseparam = rtase_set_pauseparam, + .get_eth_mac_stats = rtase_get_eth_mac_stats, + .get_ts_info = ethtool_op_get_ts_info, +}; + static void rtase_init_netdev_ops(struct net_device *dev) { dev->netdev_ops = &rtase_netdev_ops; + dev->ethtool_ops = &rtase_ethtool_ops; } static void rtase_reset_interrupt(struct pci_dev *pdev, From patchwork Fri May 17 07:53:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666701 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 43438182D2; Fri, 17 May 2024 07:59:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932753; cv=none; b=APPGSNrqc9ASek3zMQAc4+Xsv8dmRpd/0l6fnt3YJGShZ/l51VgS6hcKBEazfiR9+sOgBCUbyAwAD3Uyf7yHz6fDjQHQ+fj77OooUtjUsb1jb0AXCub7jl9S7bm2rVzK9YK4jvEi62SqNB4LNmKFjpsgAsr/PVa56fbFrR5D0FQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932753; c=relaxed/simple; bh=SlqGkIVRf6lyj7y8M/u+PC9E6k5Kr08HL6t3Mmf1fpQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=UAJIqv3Wwc6RIq82FSg2xcr2By+yW18jgDPKLAMWvoqgYnSxPC8dWfc8kbmdcrPXRXy65XBGFFaaYzOpCWl+hecMlOjD68veI8aWlH9oIt7BU8ObDj14dw24y94WEJ1U5VUvX0PV/0oZ9knz5VX9EpMmr6FDoWY1uU/Ddl0zN5o= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7wonQ72161464, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7wonQ72161464 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:58:50 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:58:49 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:58:49 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 11/13] rtase: Add a Makefile in the rtase folder Date: Fri, 17 May 2024 15:53:00 +0800 Message-ID: <20240517075302.7653-12-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36505.realtek.com.tw (172.21.6.25) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Add a Makefile in the rtase folder to build rtase driver. Signed-off-by: Justin Lai Reviewed-by: Andrew Lunn --- drivers/net/ethernet/realtek/rtase/Makefile | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 drivers/net/ethernet/realtek/rtase/Makefile diff --git a/drivers/net/ethernet/realtek/rtase/Makefile b/drivers/net/ethernet/realtek/rtase/Makefile new file mode 100644 index 000000000000..ba3d8550f9e6 --- /dev/null +++ b/drivers/net/ethernet/realtek/rtase/Makefile @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +# Copyright(c) 2024 Realtek Semiconductor Corp. All rights reserved. + +# +# Makefile for the Realtek PCIe driver +# + +obj-$(CONFIG_RTASE) += rtase.o + +rtase-objs := rtase_main.o From patchwork Fri May 17 07:53:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666702 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1AA3718EAF; Fri, 17 May 2024 07:59:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932789; cv=none; b=JK9dLgB1H75T30TjBq3CbmJDCC3m0FrpI1TguSuIjTbIyjKqWvukAzN/IzhxbkWE9R5cfqZupTLBls/GqSEK/s/xjNMjABTrhukvfiEGaVWVgKhmbK7VgP8hPe/r/xT2KZPs6eA5NYII0nz86MLiwz3S6XbmQXuIRnGbLpG//AU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932789; c=relaxed/simple; bh=lL6XwdZJ4/NSnyTZr5wjeCiLPkV47JPaGNNKpbRUVio=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=pX1AJR8i8ShpUFXMgMxfvr2BfOAzHQ/UtqTU26o5CeKO11yMLkUvS+/I9qV52U+/RF/z8OjbXPJoO7GoVrGt0a4FFWhDBoYwKknPdek0aXBHe6mEFYudGsTvPVp6zq9e8ZUxxZo93A20B00nJ4JN8SqLi34XT6+B9WxTuJJLueI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H7xRj952161543, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36506.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H7xRj952161543 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 15:59:28 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36506.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 15:59:27 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 15:59:26 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 12/13] realtek: Update the Makefile and Kconfig in the realtek folder Date: Fri, 17 May 2024 15:53:01 +0800 Message-ID: <20240517075302.7653-13-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36506.realtek.com.tw (172.21.6.27) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org 1. Add the RTASE entry in the Kconfig. 2. Add the CONFIG_RTASE entry in the Makefile. Signed-off-by: Justin Lai Reviewed-by: Andrew Lunn --- drivers/net/ethernet/realtek/Kconfig | 19 +++++++++++++++++++ drivers/net/ethernet/realtek/Makefile | 1 + 2 files changed, 20 insertions(+) diff --git a/drivers/net/ethernet/realtek/Kconfig b/drivers/net/ethernet/realtek/Kconfig index 03015b665f4e..8a8ea51c639e 100644 --- a/drivers/net/ethernet/realtek/Kconfig +++ b/drivers/net/ethernet/realtek/Kconfig @@ -120,4 +120,23 @@ config R8169_LEDS Optional support for controlling the NIC LED's with the netdev LED trigger. +config RTASE + tristate "Realtek Automotive Switch 9054/9068/9072/9075/9068/9071 PCIe Interface support" + depends on PCI + select CRC32 + select PAGE_POOL + help + Say Y here and it will be compiled and linked with the kernel + if you have a Realtek Ethernet adapter belonging to the + following families: + RTL9054 5GBit Ethernet + RTL9068 5GBit Ethernet + RTL9072 5GBit Ethernet + RTL9075 5GBit Ethernet + RTL9068 5GBit Ethernet + RTL9071 5GBit Ethernet + + To compile this driver as a module, choose M here: the module + will be called rtase. This is recommended. + endif # NET_VENDOR_REALTEK diff --git a/drivers/net/ethernet/realtek/Makefile b/drivers/net/ethernet/realtek/Makefile index 635491d8826e..046adf503ff4 100644 --- a/drivers/net/ethernet/realtek/Makefile +++ b/drivers/net/ethernet/realtek/Makefile @@ -9,3 +9,4 @@ obj-$(CONFIG_ATP) += atp.o r8169-y += r8169_main.o r8169_firmware.o r8169_phy_config.o r8169-$(CONFIG_R8169_LEDS) += r8169_leds.o obj-$(CONFIG_R8169) += r8169.o +obj-$(CONFIG_RTASE) += rtase/ From patchwork Fri May 17 07:53:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13666703 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9993422318; Fri, 17 May 2024 08:00:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932827; cv=none; b=UxOFJhMz5VtgXvFZUN6YghpkO6IFNAaL49bs90lKU6K8H/ZtgzXINowlG/WXenVEltcJlzWaYNibWQNKogLTM/0V89nl/ahftObnwXmQQbDZ/haALc+2vdstR1E9gzp5HcnN7aNbFghpZ5LMHPM/WlJl5q67xFbbkdj5U59GmYs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715932827; c=relaxed/simple; bh=OoA0HFNR+W1mfjX1VaSoU1w9Quq931ZHGxHflESjXEQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=sRr5OaoxZsSNMCnFeAbflBkZU2ATJxGr1WqUWTLaFSfxtUkN9u0l+G46lNO0ASzKLWFDHBvtK5Tm4ArPxJGRN7Hx5PlSNv7aEKoWOqm/v/m+iNOqjtNIYZDOQmMgw0/7hwKb7gEEoUxJa9fcMV9Gb0vCbEJZYYqc9zpLfqVgOs0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 44H803shC2162231, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36506.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 44H803shC2162231 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 17 May 2024 16:00:03 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36506.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 17 May 2024 16:00:02 +0800 Received: from RTDOMAIN (172.21.210.160) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Fri, 17 May 2024 16:00:01 +0800 From: Justin Lai To: CC: , , , , , , , , , , , Justin Lai Subject: [PATCH net-next v19 13/13] MAINTAINERS: Add the rtase ethernet driver entry Date: Fri, 17 May 2024 15:53:02 +0800 Message-ID: <20240517075302.7653-14-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240517075302.7653-1-justinlai0215@realtek.com> References: <20240517075302.7653-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36505.realtek.com.tw (172.21.6.25) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Add myself and Larry Chiu as the maintainer for the rtase ethernet driver. Signed-off-by: Justin Lai Reviewed-by: Andrew Lunn --- MAINTAINERS | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 94fddfcec2fb..5ee95a083591 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -19296,6 +19296,13 @@ L: linux-remoteproc@vger.kernel.org S: Maintained F: drivers/tty/rpmsg_tty.c +RTASE ETHERNET DRIVER +M: Justin Lai +M: Larry Chiu +L: netdev@vger.kernel.org +S: Maintained +F: drivers/net/ethernet/realtek/rtase/ + RTL2830 MEDIA DRIVER L: linux-media@vger.kernel.org S: Orphan