| /* |
| * AMD 10Gb Ethernet driver |
| * |
| * This file is available to you under your choice of the following two |
| * licenses: |
| * |
| * License 1: GPLv2 |
| * |
| * Copyright (c) 2014 Advanced Micro Devices, Inc. |
| * |
| * This file is free software; you may copy, redistribute and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, either version 2 of the License, or (at |
| * your option) any later version. |
| * |
| * This file is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| * This file incorporates work covered by the following copyright and |
| * permission notice: |
| * The Synopsys DWC ETHER XGMAC Software Driver and documentation |
| * (hereinafter "Software") is an unsupported proprietary work of Synopsys, |
| * Inc. unless otherwise expressly agreed to in writing between Synopsys |
| * and you. |
| * |
| * The Software IS NOT an item of Licensed Software or Licensed Product |
| * under any End User Software License Agreement or Agreement for Licensed |
| * Product with Synopsys or any supplement thereto. Permission is hereby |
| * granted, free of charge, to any person obtaining a copy of this software |
| * annotated with this license and the Software, to deal in the Software |
| * without restriction, including without limitation the rights to use, |
| * copy, modify, merge, publish, distribute, sublicense, and/or sell copies |
| * of the Software, and to permit persons to whom the Software is furnished |
| * to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" |
| * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A |
| * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * |
| * License 2: Modified BSD |
| * |
| * Copyright (c) 2014 Advanced Micro Devices, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * * Neither the name of Advanced Micro Devices, Inc. nor the |
| * names of its contributors may be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * This file incorporates work covered by the following copyright and |
| * permission notice: |
| * The Synopsys DWC ETHER XGMAC Software Driver and documentation |
| * (hereinafter "Software") is an unsupported proprietary work of Synopsys, |
| * Inc. unless otherwise expressly agreed to in writing between Synopsys |
| * and you. |
| * |
| * The Software IS NOT an item of Licensed Software or Licensed Product |
| * under any End User Software License Agreement or Agreement for Licensed |
| * Product with Synopsys or any supplement thereto. Permission is hereby |
| * granted, free of charge, to any person obtaining a copy of this software |
| * annotated with this license and the Software, to deal in the Software |
| * without restriction, including without limitation the rights to use, |
| * copy, modify, merge, publish, distribute, sublicense, and/or sell copies |
| * of the Software, and to permit persons to whom the Software is furnished |
| * to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" |
| * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A |
| * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef __XGBE_H__ |
| #define __XGBE_H__ |
| |
| #include <linux/dma-mapping.h> |
| #include <linux/netdevice.h> |
| #include <linux/workqueue.h> |
| #include <linux/phy.h> |
| #include <linux/if_vlan.h> |
| #include <linux/bitops.h> |
| #include <linux/ptp_clock_kernel.h> |
| #include <linux/clocksource.h> |
| #include <linux/net_tstamp.h> |
| #include <net/dcbnl.h> |
| |
| #define XGBE_DRV_NAME "amd-xgbe" |
| #define XGBE_DRV_VERSION "1.0.0-a" |
| #define XGBE_DRV_DESC "AMD 10 Gigabit Ethernet Driver" |
| |
| /* Descriptor related defines */ |
| #define XGBE_TX_DESC_CNT 512 |
| #define XGBE_TX_DESC_MIN_FREE (XGBE_TX_DESC_CNT >> 3) |
| #define XGBE_TX_DESC_MAX_PROC (XGBE_TX_DESC_CNT >> 1) |
| #define XGBE_RX_DESC_CNT 512 |
| |
| #define XGBE_TX_MAX_BUF_SIZE (0x3fff & ~(64 - 1)) |
| |
| /* Descriptors required for maximum contigous TSO/GSO packet */ |
| #define XGBE_TX_MAX_SPLIT ((GSO_MAX_SIZE / XGBE_TX_MAX_BUF_SIZE) + 1) |
| |
| /* Maximum possible descriptors needed for an SKB: |
| * - Maximum number of SKB frags |
| * - Maximum descriptors for contiguous TSO/GSO packet |
| * - Possible context descriptor |
| * - Possible TSO header descriptor |
| */ |
| #define XGBE_TX_MAX_DESCS (MAX_SKB_FRAGS + XGBE_TX_MAX_SPLIT + 2) |
| |
| #define XGBE_RX_MIN_BUF_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN) |
| #define XGBE_RX_BUF_ALIGN 64 |
| #define XGBE_SKB_ALLOC_SIZE 256 |
| #define XGBE_SPH_HDSMS_SIZE 2 /* Keep in sync with SKB_ALLOC_SIZE */ |
| |
| #define XGBE_MAX_DMA_CHANNELS 16 |
| #define XGBE_MAX_QUEUES 16 |
| #define XGBE_DMA_STOP_TIMEOUT 5 |
| |
| /* DMA cache settings - Outer sharable, write-back, write-allocate */ |
| #define XGBE_DMA_OS_AXDOMAIN 0x2 |
| #define XGBE_DMA_OS_ARCACHE 0xb |
| #define XGBE_DMA_OS_AWCACHE 0xf |
| |
| /* DMA cache settings - System, no caches used */ |
| #define XGBE_DMA_SYS_AXDOMAIN 0x3 |
| #define XGBE_DMA_SYS_ARCACHE 0x0 |
| #define XGBE_DMA_SYS_AWCACHE 0x0 |
| |
| #define XGBE_DMA_INTERRUPT_MASK 0x31c7 |
| |
| #define XGMAC_MIN_PACKET 60 |
| #define XGMAC_STD_PACKET_MTU 1500 |
| #define XGMAC_MAX_STD_PACKET 1518 |
| #define XGMAC_JUMBO_PACKET_MTU 9000 |
| #define XGMAC_MAX_JUMBO_PACKET 9018 |
| |
| /* MDIO bus phy name */ |
| #define XGBE_PHY_NAME "amd_xgbe_phy" |
| #define XGBE_PRTAD 0 |
| |
| /* Device-tree clock names */ |
| #define XGBE_DMA_CLOCK "dma_clk" |
| #define XGBE_PTP_CLOCK "ptp_clk" |
| #define XGBE_DMA_IRQS "amd,per-channel-interrupt" |
| |
| /* Timestamp support - values based on 50MHz PTP clock |
| * 50MHz => 20 nsec |
| */ |
| #define XGBE_TSTAMP_SSINC 20 |
| #define XGBE_TSTAMP_SNSINC 0 |
| |
| /* Driver PMT macros */ |
| #define XGMAC_DRIVER_CONTEXT 1 |
| #define XGMAC_IOCTL_CONTEXT 2 |
| |
| #define XGBE_FIFO_MAX 81920 |
| #define XGBE_FIFO_SIZE_B(x) (x) |
| #define XGBE_FIFO_SIZE_KB(x) (x * 1024) |
| |
| #define XGBE_TC_MIN_QUANTUM 10 |
| |
| /* Helper macro for descriptor handling |
| * Always use XGBE_GET_DESC_DATA to access the descriptor data |
| * since the index is free-running and needs to be and-ed |
| * with the descriptor count value of the ring to index to |
| * the proper descriptor data. |
| */ |
| #define XGBE_GET_DESC_DATA(_ring, _idx) \ |
| ((_ring)->rdata + \ |
| ((_idx) & ((_ring)->rdesc_count - 1))) |
| |
| /* Default coalescing parameters */ |
| #define XGMAC_INIT_DMA_TX_USECS 50 |
| #define XGMAC_INIT_DMA_TX_FRAMES 25 |
| |
| #define XGMAC_MAX_DMA_RIWT 0xff |
| #define XGMAC_INIT_DMA_RX_USECS 30 |
| #define XGMAC_INIT_DMA_RX_FRAMES 25 |
| |
| /* Flow control queue count */ |
| #define XGMAC_MAX_FLOW_CONTROL_QUEUES 8 |
| |
| /* Maximum MAC address hash table size (256 bits = 8 bytes) */ |
| #define XGBE_MAC_HASH_TABLE_SIZE 8 |
| |
| /* Receive Side Scaling */ |
| #define XGBE_RSS_HASH_KEY_SIZE 40 |
| #define XGBE_RSS_MAX_TABLE_SIZE 256 |
| #define XGBE_RSS_LOOKUP_TABLE_TYPE 0 |
| #define XGBE_RSS_HASH_KEY_TYPE 1 |
| |
| struct xgbe_prv_data; |
| |
| struct xgbe_packet_data { |
| struct sk_buff *skb; |
| |
| unsigned int attributes; |
| |
| unsigned int errors; |
| |
| unsigned int rdesc_count; |
| unsigned int length; |
| |
| unsigned int header_len; |
| unsigned int tcp_header_len; |
| unsigned int tcp_payload_len; |
| unsigned short mss; |
| |
| unsigned short vlan_ctag; |
| |
| u64 rx_tstamp; |
| |
| u32 rss_hash; |
| enum pkt_hash_types rss_hash_type; |
| |
| unsigned int tx_packets; |
| unsigned int tx_bytes; |
| }; |
| |
| /* Common Rx and Tx descriptor mapping */ |
| struct xgbe_ring_desc { |
| __le32 desc0; |
| __le32 desc1; |
| __le32 desc2; |
| __le32 desc3; |
| }; |
| |
| /* Page allocation related values */ |
| struct xgbe_page_alloc { |
| struct page *pages; |
| unsigned int pages_len; |
| unsigned int pages_offset; |
| |
| dma_addr_t pages_dma; |
| }; |
| |
| /* Ring entry buffer data */ |
| struct xgbe_buffer_data { |
| struct xgbe_page_alloc pa; |
| struct xgbe_page_alloc pa_unmap; |
| |
| dma_addr_t dma; |
| unsigned int dma_len; |
| }; |
| |
| /* Tx-related ring data */ |
| struct xgbe_tx_ring_data { |
| unsigned int packets; /* BQL packet count */ |
| unsigned int bytes; /* BQL byte count */ |
| }; |
| |
| /* Rx-related ring data */ |
| struct xgbe_rx_ring_data { |
| struct xgbe_buffer_data hdr; /* Header locations */ |
| struct xgbe_buffer_data buf; /* Payload locations */ |
| |
| unsigned short hdr_len; /* Length of received header */ |
| unsigned short len; /* Length of received packet */ |
| }; |
| |
| /* Structure used to hold information related to the descriptor |
| * and the packet associated with the descriptor (always use |
| * use the XGBE_GET_DESC_DATA macro to access this data from the ring) |
| */ |
| struct xgbe_ring_data { |
| struct xgbe_ring_desc *rdesc; /* Virtual address of descriptor */ |
| dma_addr_t rdesc_dma; /* DMA address of descriptor */ |
| |
| struct sk_buff *skb; /* Virtual address of SKB */ |
| dma_addr_t skb_dma; /* DMA address of SKB data */ |
| unsigned int skb_dma_len; /* Length of SKB DMA area */ |
| |
| struct xgbe_tx_ring_data tx; /* Tx-related data */ |
| struct xgbe_rx_ring_data rx; /* Rx-related data */ |
| |
| unsigned int interrupt; /* Interrupt indicator */ |
| |
| unsigned int mapped_as_page; |
| |
| /* Incomplete receive save location. If the budget is exhausted |
| * or the last descriptor (last normal descriptor or a following |
| * context descriptor) has not been DMA'd yet the current state |
| * of the receive processing needs to be saved. |
| */ |
| unsigned int state_saved; |
| struct { |
| unsigned int incomplete; |
| unsigned int context_next; |
| struct sk_buff *skb; |
| unsigned int len; |
| unsigned int error; |
| } state; |
| }; |
| |
| struct xgbe_ring { |
| /* Ring lock - used just for TX rings at the moment */ |
| spinlock_t lock; |
| |
| /* Per packet related information */ |
| struct xgbe_packet_data packet_data; |
| |
| /* Virtual/DMA addresses and count of allocated descriptor memory */ |
| struct xgbe_ring_desc *rdesc; |
| dma_addr_t rdesc_dma; |
| unsigned int rdesc_count; |
| |
| /* Array of descriptor data corresponding the descriptor memory |
| * (always use the XGBE_GET_DESC_DATA macro to access this data) |
| */ |
| struct xgbe_ring_data *rdata; |
| |
| /* Page allocation for RX buffers */ |
| struct xgbe_page_alloc rx_hdr_pa; |
| struct xgbe_page_alloc rx_buf_pa; |
| |
| /* Ring index values |
| * cur - Tx: index of descriptor to be used for current transfer |
| * Rx: index of descriptor to check for packet availability |
| * dirty - Tx: index of descriptor to check for transfer complete |
| * Rx: count of descriptors in which a packet has been received |
| * (used with skb_realloc_index to refresh the ring) |
| */ |
| unsigned int cur; |
| unsigned int dirty; |
| |
| /* Coalesce frame count used for interrupt bit setting */ |
| unsigned int coalesce_count; |
| |
| union { |
| struct { |
| unsigned int queue_stopped; |
| unsigned int xmit_more; |
| unsigned short cur_mss; |
| unsigned short cur_vlan_ctag; |
| } tx; |
| |
| struct { |
| unsigned int realloc_index; |
| unsigned int realloc_threshold; |
| } rx; |
| }; |
| } ____cacheline_aligned; |
| |
| /* Structure used to describe the descriptor rings associated with |
| * a DMA channel. |
| */ |
| struct xgbe_channel { |
| char name[16]; |
| |
| /* Address of private data area for device */ |
| struct xgbe_prv_data *pdata; |
| |
| /* Queue index and base address of queue's DMA registers */ |
| unsigned int queue_index; |
| void __iomem *dma_regs; |
| |
| /* Per channel interrupt irq number */ |
| int dma_irq; |
| char dma_irq_name[IFNAMSIZ + 32]; |
| |
| /* Netdev related settings */ |
| struct napi_struct napi; |
| |
| unsigned int saved_ier; |
| |
| unsigned int tx_timer_active; |
| struct hrtimer tx_timer; |
| |
| struct xgbe_ring *tx_ring; |
| struct xgbe_ring *rx_ring; |
| } ____cacheline_aligned; |
| |
| enum xgbe_int { |
| XGMAC_INT_DMA_CH_SR_TI, |
| XGMAC_INT_DMA_CH_SR_TPS, |
| XGMAC_INT_DMA_CH_SR_TBU, |
| XGMAC_INT_DMA_CH_SR_RI, |
| XGMAC_INT_DMA_CH_SR_RBU, |
| XGMAC_INT_DMA_CH_SR_RPS, |
| XGMAC_INT_DMA_CH_SR_TI_RI, |
| XGMAC_INT_DMA_CH_SR_FBE, |
| XGMAC_INT_DMA_ALL, |
| }; |
| |
| enum xgbe_int_state { |
| XGMAC_INT_STATE_SAVE, |
| XGMAC_INT_STATE_RESTORE, |
| }; |
| |
| enum xgbe_mtl_fifo_size { |
| XGMAC_MTL_FIFO_SIZE_256 = 0x00, |
| XGMAC_MTL_FIFO_SIZE_512 = 0x01, |
| XGMAC_MTL_FIFO_SIZE_1K = 0x03, |
| XGMAC_MTL_FIFO_SIZE_2K = 0x07, |
| XGMAC_MTL_FIFO_SIZE_4K = 0x0f, |
| XGMAC_MTL_FIFO_SIZE_8K = 0x1f, |
| XGMAC_MTL_FIFO_SIZE_16K = 0x3f, |
| XGMAC_MTL_FIFO_SIZE_32K = 0x7f, |
| XGMAC_MTL_FIFO_SIZE_64K = 0xff, |
| XGMAC_MTL_FIFO_SIZE_128K = 0x1ff, |
| XGMAC_MTL_FIFO_SIZE_256K = 0x3ff, |
| }; |
| |
| struct xgbe_mmc_stats { |
| /* Tx Stats */ |
| u64 txoctetcount_gb; |
| u64 txframecount_gb; |
| u64 txbroadcastframes_g; |
| u64 txmulticastframes_g; |
| u64 tx64octets_gb; |
| u64 tx65to127octets_gb; |
| u64 tx128to255octets_gb; |
| u64 tx256to511octets_gb; |
| u64 tx512to1023octets_gb; |
| u64 tx1024tomaxoctets_gb; |
| u64 txunicastframes_gb; |
| u64 txmulticastframes_gb; |
| u64 txbroadcastframes_gb; |
| u64 txunderflowerror; |
| u64 txoctetcount_g; |
| u64 txframecount_g; |
| u64 txpauseframes; |
| u64 txvlanframes_g; |
| |
| /* Rx Stats */ |
| u64 rxframecount_gb; |
| u64 rxoctetcount_gb; |
| u64 rxoctetcount_g; |
| u64 rxbroadcastframes_g; |
| u64 rxmulticastframes_g; |
| u64 rxcrcerror; |
| u64 rxrunterror; |
| u64 rxjabbererror; |
| u64 rxundersize_g; |
| u64 rxoversize_g; |
| u64 rx64octets_gb; |
| u64 rx65to127octets_gb; |
| u64 rx128to255octets_gb; |
| u64 rx256to511octets_gb; |
| u64 rx512to1023octets_gb; |
| u64 rx1024tomaxoctets_gb; |
| u64 rxunicastframes_g; |
| u64 rxlengtherror; |
| u64 rxoutofrangetype; |
| u64 rxpauseframes; |
| u64 rxfifooverflow; |
| u64 rxvlanframes_gb; |
| u64 rxwatchdogerror; |
| }; |
| |
| struct xgbe_hw_if { |
| int (*tx_complete)(struct xgbe_ring_desc *); |
| |
| int (*set_promiscuous_mode)(struct xgbe_prv_data *, unsigned int); |
| int (*set_all_multicast_mode)(struct xgbe_prv_data *, unsigned int); |
| int (*add_mac_addresses)(struct xgbe_prv_data *); |
| int (*set_mac_address)(struct xgbe_prv_data *, u8 *addr); |
| |
| int (*enable_rx_csum)(struct xgbe_prv_data *); |
| int (*disable_rx_csum)(struct xgbe_prv_data *); |
| |
| int (*enable_rx_vlan_stripping)(struct xgbe_prv_data *); |
| int (*disable_rx_vlan_stripping)(struct xgbe_prv_data *); |
| int (*enable_rx_vlan_filtering)(struct xgbe_prv_data *); |
| int (*disable_rx_vlan_filtering)(struct xgbe_prv_data *); |
| int (*update_vlan_hash_table)(struct xgbe_prv_data *); |
| |
| int (*read_mmd_regs)(struct xgbe_prv_data *, int, int); |
| void (*write_mmd_regs)(struct xgbe_prv_data *, int, int, int); |
| int (*set_gmii_speed)(struct xgbe_prv_data *); |
| int (*set_gmii_2500_speed)(struct xgbe_prv_data *); |
| int (*set_xgmii_speed)(struct xgbe_prv_data *); |
| |
| void (*enable_tx)(struct xgbe_prv_data *); |
| void (*disable_tx)(struct xgbe_prv_data *); |
| void (*enable_rx)(struct xgbe_prv_data *); |
| void (*disable_rx)(struct xgbe_prv_data *); |
| |
| void (*powerup_tx)(struct xgbe_prv_data *); |
| void (*powerdown_tx)(struct xgbe_prv_data *); |
| void (*powerup_rx)(struct xgbe_prv_data *); |
| void (*powerdown_rx)(struct xgbe_prv_data *); |
| |
| int (*init)(struct xgbe_prv_data *); |
| int (*exit)(struct xgbe_prv_data *); |
| |
| int (*enable_int)(struct xgbe_channel *, enum xgbe_int); |
| int (*disable_int)(struct xgbe_channel *, enum xgbe_int); |
| void (*dev_xmit)(struct xgbe_channel *); |
| int (*dev_read)(struct xgbe_channel *); |
| void (*tx_desc_init)(struct xgbe_channel *); |
| void (*rx_desc_init)(struct xgbe_channel *); |
| void (*rx_desc_reset)(struct xgbe_ring_data *); |
| void (*tx_desc_reset)(struct xgbe_ring_data *); |
| int (*is_last_desc)(struct xgbe_ring_desc *); |
| int (*is_context_desc)(struct xgbe_ring_desc *); |
| void (*tx_start_xmit)(struct xgbe_channel *, struct xgbe_ring *); |
| |
| /* For FLOW ctrl */ |
| int (*config_tx_flow_control)(struct xgbe_prv_data *); |
| int (*config_rx_flow_control)(struct xgbe_prv_data *); |
| |
| /* For RX coalescing */ |
| int (*config_rx_coalesce)(struct xgbe_prv_data *); |
| int (*config_tx_coalesce)(struct xgbe_prv_data *); |
| unsigned int (*usec_to_riwt)(struct xgbe_prv_data *, unsigned int); |
| unsigned int (*riwt_to_usec)(struct xgbe_prv_data *, unsigned int); |
| |
| /* For RX and TX threshold config */ |
| int (*config_rx_threshold)(struct xgbe_prv_data *, unsigned int); |
| int (*config_tx_threshold)(struct xgbe_prv_data *, unsigned int); |
| |
| /* For RX and TX Store and Forward Mode config */ |
| int (*config_rsf_mode)(struct xgbe_prv_data *, unsigned int); |
| int (*config_tsf_mode)(struct xgbe_prv_data *, unsigned int); |
| |
| /* For TX DMA Operate on Second Frame config */ |
| int (*config_osp_mode)(struct xgbe_prv_data *); |
| |
| /* For RX and TX PBL config */ |
| int (*config_rx_pbl_val)(struct xgbe_prv_data *); |
| int (*get_rx_pbl_val)(struct xgbe_prv_data *); |
| int (*config_tx_pbl_val)(struct xgbe_prv_data *); |
| int (*get_tx_pbl_val)(struct xgbe_prv_data *); |
| int (*config_pblx8)(struct xgbe_prv_data *); |
| |
| /* For MMC statistics */ |
| void (*rx_mmc_int)(struct xgbe_prv_data *); |
| void (*tx_mmc_int)(struct xgbe_prv_data *); |
| void (*read_mmc_stats)(struct xgbe_prv_data *); |
| |
| /* For Timestamp config */ |
| int (*config_tstamp)(struct xgbe_prv_data *, unsigned int); |
| void (*update_tstamp_addend)(struct xgbe_prv_data *, unsigned int); |
| void (*set_tstamp_time)(struct xgbe_prv_data *, unsigned int sec, |
| unsigned int nsec); |
| u64 (*get_tstamp_time)(struct xgbe_prv_data *); |
| u64 (*get_tx_tstamp)(struct xgbe_prv_data *); |
| |
| /* For Data Center Bridging config */ |
| void (*config_dcb_tc)(struct xgbe_prv_data *); |
| void (*config_dcb_pfc)(struct xgbe_prv_data *); |
| |
| /* For Receive Side Scaling */ |
| int (*enable_rss)(struct xgbe_prv_data *); |
| int (*disable_rss)(struct xgbe_prv_data *); |
| int (*set_rss_hash_key)(struct xgbe_prv_data *, const u8 *); |
| int (*set_rss_lookup_table)(struct xgbe_prv_data *, const u32 *); |
| }; |
| |
| struct xgbe_desc_if { |
| int (*alloc_ring_resources)(struct xgbe_prv_data *); |
| void (*free_ring_resources)(struct xgbe_prv_data *); |
| int (*map_tx_skb)(struct xgbe_channel *, struct sk_buff *); |
| void (*realloc_rx_buffer)(struct xgbe_channel *); |
| void (*unmap_rdata)(struct xgbe_prv_data *, struct xgbe_ring_data *); |
| void (*wrapper_tx_desc_init)(struct xgbe_prv_data *); |
| void (*wrapper_rx_desc_init)(struct xgbe_prv_data *); |
| }; |
| |
| /* This structure contains flags that indicate what hardware features |
| * or configurations are present in the device. |
| */ |
| struct xgbe_hw_features { |
| /* HW Version */ |
| unsigned int version; |
| |
| /* HW Feature Register0 */ |
| unsigned int gmii; /* 1000 Mbps support */ |
| unsigned int vlhash; /* VLAN Hash Filter */ |
| unsigned int sma; /* SMA(MDIO) Interface */ |
| unsigned int rwk; /* PMT remote wake-up packet */ |
| unsigned int mgk; /* PMT magic packet */ |
| unsigned int mmc; /* RMON module */ |
| unsigned int aoe; /* ARP Offload */ |
| unsigned int ts; /* IEEE 1588-2008 Adavanced Timestamp */ |
| unsigned int eee; /* Energy Efficient Ethernet */ |
| unsigned int tx_coe; /* Tx Checksum Offload */ |
| unsigned int rx_coe; /* Rx Checksum Offload */ |
| unsigned int addn_mac; /* Additional MAC Addresses */ |
| unsigned int ts_src; /* Timestamp Source */ |
| unsigned int sa_vlan_ins; /* Source Address or VLAN Insertion */ |
| |
| /* HW Feature Register1 */ |
| unsigned int rx_fifo_size; /* MTL Receive FIFO Size */ |
| unsigned int tx_fifo_size; /* MTL Transmit FIFO Size */ |
| unsigned int adv_ts_hi; /* Advance Timestamping High Word */ |
| unsigned int dcb; /* DCB Feature */ |
| unsigned int sph; /* Split Header Feature */ |
| unsigned int tso; /* TCP Segmentation Offload */ |
| unsigned int dma_debug; /* DMA Debug Registers */ |
| unsigned int rss; /* Receive Side Scaling */ |
| unsigned int tc_cnt; /* Number of Traffic Classes */ |
| unsigned int hash_table_size; /* Hash Table Size */ |
| unsigned int l3l4_filter_num; /* Number of L3-L4 Filters */ |
| |
| /* HW Feature Register2 */ |
| unsigned int rx_q_cnt; /* Number of MTL Receive Queues */ |
| unsigned int tx_q_cnt; /* Number of MTL Transmit Queues */ |
| unsigned int rx_ch_cnt; /* Number of DMA Receive Channels */ |
| unsigned int tx_ch_cnt; /* Number of DMA Transmit Channels */ |
| unsigned int pps_out_num; /* Number of PPS outputs */ |
| unsigned int aux_snap_num; /* Number of Aux snapshot inputs */ |
| }; |
| |
| struct xgbe_prv_data { |
| struct net_device *netdev; |
| struct platform_device *pdev; |
| struct device *dev; |
| |
| /* XGMAC/XPCS related mmio registers */ |
| void __iomem *xgmac_regs; /* XGMAC CSRs */ |
| void __iomem *xpcs_regs; /* XPCS MMD registers */ |
| |
| /* Overall device lock */ |
| spinlock_t lock; |
| |
| /* XPCS indirect addressing mutex */ |
| struct mutex xpcs_mutex; |
| |
| /* RSS addressing mutex */ |
| struct mutex rss_mutex; |
| |
| int dev_irq; |
| unsigned int per_channel_irq; |
| |
| struct xgbe_hw_if hw_if; |
| struct xgbe_desc_if desc_if; |
| |
| /* AXI DMA settings */ |
| unsigned int axdomain; |
| unsigned int arcache; |
| unsigned int awcache; |
| |
| /* Rings for Tx/Rx on a DMA channel */ |
| struct xgbe_channel *channel; |
| unsigned int channel_count; |
| unsigned int tx_ring_count; |
| unsigned int tx_desc_count; |
| unsigned int rx_ring_count; |
| unsigned int rx_desc_count; |
| |
| unsigned int tx_q_count; |
| unsigned int rx_q_count; |
| |
| /* Tx/Rx common settings */ |
| unsigned int pblx8; |
| |
| /* Tx settings */ |
| unsigned int tx_sf_mode; |
| unsigned int tx_threshold; |
| unsigned int tx_pbl; |
| unsigned int tx_osp_mode; |
| |
| /* Rx settings */ |
| unsigned int rx_sf_mode; |
| unsigned int rx_threshold; |
| unsigned int rx_pbl; |
| |
| /* Tx coalescing settings */ |
| unsigned int tx_usecs; |
| unsigned int tx_frames; |
| |
| /* Rx coalescing settings */ |
| unsigned int rx_riwt; |
| unsigned int rx_frames; |
| |
| /* Current Rx buffer size */ |
| unsigned int rx_buf_size; |
| |
| /* Flow control settings */ |
| unsigned int pause_autoneg; |
| unsigned int tx_pause; |
| unsigned int rx_pause; |
| |
| /* Receive Side Scaling settings */ |
| u8 rss_key[XGBE_RSS_HASH_KEY_SIZE]; |
| u32 rss_table[XGBE_RSS_MAX_TABLE_SIZE]; |
| u32 rss_options; |
| |
| /* MDIO settings */ |
| struct module *phy_module; |
| char *mii_bus_id; |
| struct mii_bus *mii; |
| int mdio_mmd; |
| struct phy_device *phydev; |
| int default_autoneg; |
| int default_speed; |
| |
| /* Current PHY settings */ |
| phy_interface_t phy_mode; |
| int phy_link; |
| int phy_speed; |
| unsigned int phy_tx_pause; |
| unsigned int phy_rx_pause; |
| |
| /* Netdev related settings */ |
| netdev_features_t netdev_features; |
| struct napi_struct napi; |
| struct xgbe_mmc_stats mmc_stats; |
| |
| /* Filtering support */ |
| unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; |
| |
| /* Device clocks */ |
| struct clk *sysclk; |
| struct clk *ptpclk; |
| |
| /* Timestamp support */ |
| spinlock_t tstamp_lock; |
| struct ptp_clock_info ptp_clock_info; |
| struct ptp_clock *ptp_clock; |
| struct hwtstamp_config tstamp_config; |
| struct cyclecounter tstamp_cc; |
| struct timecounter tstamp_tc; |
| unsigned int tstamp_addend; |
| struct work_struct tx_tstamp_work; |
| struct sk_buff *tx_tstamp_skb; |
| u64 tx_tstamp; |
| |
| /* DCB support */ |
| struct ieee_ets *ets; |
| struct ieee_pfc *pfc; |
| unsigned int q2tc_map[XGBE_MAX_QUEUES]; |
| unsigned int prio2q_map[IEEE_8021QAZ_MAX_TCS]; |
| |
| /* Hardware features of the device */ |
| struct xgbe_hw_features hw_feat; |
| |
| /* Device restart work structure */ |
| struct work_struct restart_work; |
| |
| /* Keeps track of power mode */ |
| unsigned int power_down; |
| |
| #ifdef CONFIG_DEBUG_FS |
| struct dentry *xgbe_debugfs; |
| |
| unsigned int debugfs_xgmac_reg; |
| |
| unsigned int debugfs_xpcs_mmd; |
| unsigned int debugfs_xpcs_reg; |
| #endif |
| }; |
| |
| /* Function prototypes*/ |
| |
| void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *); |
| void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *); |
| struct net_device_ops *xgbe_get_netdev_ops(void); |
| struct ethtool_ops *xgbe_get_ethtool_ops(void); |
| #ifdef CONFIG_AMD_XGBE_DCB |
| const struct dcbnl_rtnl_ops *xgbe_get_dcbnl_ops(void); |
| #endif |
| |
| int xgbe_mdio_register(struct xgbe_prv_data *); |
| void xgbe_mdio_unregister(struct xgbe_prv_data *); |
| void xgbe_dump_phy_registers(struct xgbe_prv_data *); |
| void xgbe_ptp_register(struct xgbe_prv_data *); |
| void xgbe_ptp_unregister(struct xgbe_prv_data *); |
| void xgbe_dump_tx_desc(struct xgbe_ring *, unsigned int, unsigned int, |
| unsigned int); |
| void xgbe_dump_rx_desc(struct xgbe_ring *, struct xgbe_ring_desc *, |
| unsigned int); |
| void xgbe_print_pkt(struct net_device *, struct sk_buff *, bool); |
| void xgbe_get_all_hw_features(struct xgbe_prv_data *); |
| int xgbe_powerup(struct net_device *, unsigned int); |
| int xgbe_powerdown(struct net_device *, unsigned int); |
| void xgbe_init_rx_coalesce(struct xgbe_prv_data *); |
| void xgbe_init_tx_coalesce(struct xgbe_prv_data *); |
| |
| #ifdef CONFIG_DEBUG_FS |
| void xgbe_debugfs_init(struct xgbe_prv_data *); |
| void xgbe_debugfs_exit(struct xgbe_prv_data *); |
| #else |
| static inline void xgbe_debugfs_init(struct xgbe_prv_data *pdata) {} |
| static inline void xgbe_debugfs_exit(struct xgbe_prv_data *pdata) {} |
| #endif /* CONFIG_DEBUG_FS */ |
| |
| /* NOTE: Uncomment for TX and RX DESCRIPTOR DUMP in KERNEL LOG */ |
| #if 0 |
| #define XGMAC_ENABLE_TX_DESC_DUMP |
| #define XGMAC_ENABLE_RX_DESC_DUMP |
| #endif |
| |
| /* NOTE: Uncomment for TX and RX PACKET DUMP in KERNEL LOG */ |
| #if 0 |
| #define XGMAC_ENABLE_TX_PKT_DUMP |
| #define XGMAC_ENABLE_RX_PKT_DUMP |
| #endif |
| |
| /* NOTE: Uncomment for function trace log messages in KERNEL LOG */ |
| #if 0 |
| #define YDEBUG |
| #define YDEBUG_MDIO |
| #endif |
| |
| /* For debug prints */ |
| #ifdef YDEBUG |
| #define DBGPR(x...) pr_alert(x) |
| #define DBGPHY_REGS(x...) xgbe_dump_phy_registers(x) |
| #else |
| #define DBGPR(x...) do { } while (0) |
| #define DBGPHY_REGS(x...) do { } while (0) |
| #endif |
| |
| #ifdef YDEBUG_MDIO |
| #define DBGPR_MDIO(x...) pr_alert(x) |
| #else |
| #define DBGPR_MDIO(x...) do { } while (0) |
| #endif |
| |
| #endif |