| /* |
| * linux/drivers/net/ehea/ehea.h |
| * |
| * eHEA ethernet device driver for IBM eServer System p |
| * |
| * (C) Copyright IBM Corp. 2006 |
| * |
| * Authors: |
| * Christoph Raisch <raisch@de.ibm.com> |
| * Jan-Bernd Themann <themann@de.ibm.com> |
| * Thomas Klein <tklein@de.ibm.com> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program 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, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #ifndef __EHEA_H__ |
| #define __EHEA_H__ |
| |
| #include <linux/module.h> |
| #include <linux/ethtool.h> |
| #include <linux/vmalloc.h> |
| #include <linux/if_vlan.h> |
| #include <linux/inet_lro.h> |
| |
| #include <asm/ibmebus.h> |
| #include <asm/abs_addr.h> |
| #include <asm/io.h> |
| |
| #define DRV_NAME "ehea" |
| #define DRV_VERSION "EHEA_0079" |
| |
| /* eHEA capability flags */ |
| #define DLPAR_PORT_ADD_REM 1 |
| #define DLPAR_MEM_ADD 2 |
| #define DLPAR_MEM_REM 4 |
| #define EHEA_CAPABILITIES (DLPAR_PORT_ADD_REM | DLPAR_MEM_ADD) |
| |
| #define EHEA_MSG_DEFAULT (NETIF_MSG_LINK | NETIF_MSG_TIMER \ |
| | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) |
| |
| #define EHEA_MAX_ENTRIES_RQ1 32767 |
| #define EHEA_MAX_ENTRIES_RQ2 16383 |
| #define EHEA_MAX_ENTRIES_RQ3 16383 |
| #define EHEA_MAX_ENTRIES_SQ 32767 |
| #define EHEA_MIN_ENTRIES_QP 127 |
| |
| #define EHEA_SMALL_QUEUES |
| #define EHEA_NUM_TX_QP 1 |
| #define EHEA_LRO_MAX_AGGR 64 |
| |
| #ifdef EHEA_SMALL_QUEUES |
| #define EHEA_MAX_CQE_COUNT 1023 |
| #define EHEA_DEF_ENTRIES_SQ 1023 |
| #define EHEA_DEF_ENTRIES_RQ1 4095 |
| #define EHEA_DEF_ENTRIES_RQ2 1023 |
| #define EHEA_DEF_ENTRIES_RQ3 1023 |
| #else |
| #define EHEA_MAX_CQE_COUNT 4080 |
| #define EHEA_DEF_ENTRIES_SQ 4080 |
| #define EHEA_DEF_ENTRIES_RQ1 8160 |
| #define EHEA_DEF_ENTRIES_RQ2 2040 |
| #define EHEA_DEF_ENTRIES_RQ3 2040 |
| #endif |
| |
| #define EHEA_MAX_ENTRIES_EQ 20 |
| |
| #define EHEA_SG_SQ 2 |
| #define EHEA_SG_RQ1 1 |
| #define EHEA_SG_RQ2 0 |
| #define EHEA_SG_RQ3 0 |
| |
| #define EHEA_MAX_PACKET_SIZE 9022 /* for jumbo frames */ |
| #define EHEA_RQ2_PKT_SIZE 1522 |
| #define EHEA_L_PKT_SIZE 256 /* low latency */ |
| |
| #define MAX_LRO_DESCRIPTORS 8 |
| |
| /* Send completion signaling */ |
| |
| /* Protection Domain Identifier */ |
| #define EHEA_PD_ID 0xaabcdeff |
| |
| #define EHEA_RQ2_THRESHOLD 1 |
| #define EHEA_RQ3_THRESHOLD 9 /* use RQ3 threshold of 1522 bytes */ |
| |
| #define EHEA_SPEED_10G 10000 |
| #define EHEA_SPEED_1G 1000 |
| #define EHEA_SPEED_100M 100 |
| #define EHEA_SPEED_10M 10 |
| #define EHEA_SPEED_AUTONEG 0 |
| |
| /* Broadcast/Multicast registration types */ |
| #define EHEA_BCMC_SCOPE_ALL 0x08 |
| #define EHEA_BCMC_SCOPE_SINGLE 0x00 |
| #define EHEA_BCMC_MULTICAST 0x04 |
| #define EHEA_BCMC_BROADCAST 0x00 |
| #define EHEA_BCMC_UNTAGGED 0x02 |
| #define EHEA_BCMC_TAGGED 0x00 |
| #define EHEA_BCMC_VLANID_ALL 0x01 |
| #define EHEA_BCMC_VLANID_SINGLE 0x00 |
| |
| #define EHEA_CACHE_LINE 128 |
| |
| /* Memory Regions */ |
| #define EHEA_MR_ACC_CTRL 0x00800000 |
| |
| #define EHEA_BUSMAP_START 0x8000000000000000ULL |
| |
| #define EHEA_WATCH_DOG_TIMEOUT 10*HZ |
| |
| /* utility functions */ |
| |
| #define ehea_info(fmt, args...) \ |
| printk(KERN_INFO DRV_NAME ": " fmt "\n", ## args) |
| |
| #define ehea_error(fmt, args...) \ |
| printk(KERN_ERR DRV_NAME ": Error in %s: " fmt "\n", __func__, ## args) |
| |
| #ifdef DEBUG |
| #define ehea_debug(fmt, args...) \ |
| printk(KERN_DEBUG DRV_NAME ": " fmt, ## args) |
| #else |
| #define ehea_debug(fmt, args...) do {} while (0) |
| #endif |
| |
| void ehea_dump(void *adr, int len, char *msg); |
| |
| #define EHEA_BMASK(pos, length) (((pos) << 16) + (length)) |
| |
| #define EHEA_BMASK_IBM(from, to) (((63 - to) << 16) + ((to) - (from) + 1)) |
| |
| #define EHEA_BMASK_SHIFTPOS(mask) (((mask) >> 16) & 0xffff) |
| |
| #define EHEA_BMASK_MASK(mask) \ |
| (0xffffffffffffffffULL >> ((64 - (mask)) & 0xffff)) |
| |
| #define EHEA_BMASK_SET(mask, value) \ |
| ((EHEA_BMASK_MASK(mask) & ((u64)(value))) << EHEA_BMASK_SHIFTPOS(mask)) |
| |
| #define EHEA_BMASK_GET(mask, value) \ |
| (EHEA_BMASK_MASK(mask) & (((u64)(value)) >> EHEA_BMASK_SHIFTPOS(mask))) |
| |
| /* |
| * Generic ehea page |
| */ |
| struct ehea_page { |
| u8 entries[PAGE_SIZE]; |
| }; |
| |
| /* |
| * Generic queue in linux kernel virtual memory |
| */ |
| struct hw_queue { |
| u64 current_q_offset; /* current queue entry */ |
| struct ehea_page **queue_pages; /* array of pages belonging to queue */ |
| u32 qe_size; /* queue entry size */ |
| u32 queue_length; /* queue length allocated in bytes */ |
| u32 pagesize; |
| u32 toggle_state; /* toggle flag - per page */ |
| u32 reserved; /* 64 bit alignment */ |
| }; |
| |
| /* |
| * For pSeries this is a 64bit memory address where |
| * I/O memory is mapped into CPU address space |
| */ |
| struct h_epa { |
| void __iomem *addr; |
| }; |
| |
| struct h_epa_user { |
| u64 addr; |
| }; |
| |
| struct h_epas { |
| struct h_epa kernel; /* kernel space accessible resource, |
| set to 0 if unused */ |
| struct h_epa_user user; /* user space accessible resource |
| set to 0 if unused */ |
| }; |
| |
| struct ehea_busmap { |
| unsigned int entries; /* total number of entries */ |
| unsigned int valid_sections; /* number of valid sections */ |
| u64 *vaddr; |
| }; |
| |
| struct ehea_qp; |
| struct ehea_cq; |
| struct ehea_eq; |
| struct ehea_port; |
| struct ehea_av; |
| |
| /* |
| * Queue attributes passed to ehea_create_qp() |
| */ |
| struct ehea_qp_init_attr { |
| /* input parameter */ |
| u32 qp_token; /* queue token */ |
| u8 low_lat_rq1; |
| u8 signalingtype; /* cqe generation flag */ |
| u8 rq_count; /* num of receive queues */ |
| u8 eqe_gen; /* eqe generation flag */ |
| u16 max_nr_send_wqes; /* max number of send wqes */ |
| u16 max_nr_rwqes_rq1; /* max number of receive wqes */ |
| u16 max_nr_rwqes_rq2; |
| u16 max_nr_rwqes_rq3; |
| u8 wqe_size_enc_sq; |
| u8 wqe_size_enc_rq1; |
| u8 wqe_size_enc_rq2; |
| u8 wqe_size_enc_rq3; |
| u8 swqe_imm_data_len; /* immediate data length for swqes */ |
| u16 port_nr; |
| u16 rq2_threshold; |
| u16 rq3_threshold; |
| u64 send_cq_handle; |
| u64 recv_cq_handle; |
| u64 aff_eq_handle; |
| |
| /* output parameter */ |
| u32 qp_nr; |
| u16 act_nr_send_wqes; |
| u16 act_nr_rwqes_rq1; |
| u16 act_nr_rwqes_rq2; |
| u16 act_nr_rwqes_rq3; |
| u8 act_wqe_size_enc_sq; |
| u8 act_wqe_size_enc_rq1; |
| u8 act_wqe_size_enc_rq2; |
| u8 act_wqe_size_enc_rq3; |
| u32 nr_sq_pages; |
| u32 nr_rq1_pages; |
| u32 nr_rq2_pages; |
| u32 nr_rq3_pages; |
| u32 liobn_sq; |
| u32 liobn_rq1; |
| u32 liobn_rq2; |
| u32 liobn_rq3; |
| }; |
| |
| /* |
| * Event Queue attributes, passed as paramter |
| */ |
| struct ehea_eq_attr { |
| u32 type; |
| u32 max_nr_of_eqes; |
| u8 eqe_gen; /* generate eqe flag */ |
| u64 eq_handle; |
| u32 act_nr_of_eqes; |
| u32 nr_pages; |
| u32 ist1; /* Interrupt service token */ |
| u32 ist2; |
| u32 ist3; |
| u32 ist4; |
| }; |
| |
| |
| /* |
| * Event Queue |
| */ |
| struct ehea_eq { |
| struct ehea_adapter *adapter; |
| struct hw_queue hw_queue; |
| u64 fw_handle; |
| struct h_epas epas; |
| spinlock_t spinlock; |
| struct ehea_eq_attr attr; |
| }; |
| |
| /* |
| * HEA Queues |
| */ |
| struct ehea_qp { |
| struct ehea_adapter *adapter; |
| u64 fw_handle; /* QP handle for firmware calls */ |
| struct hw_queue hw_squeue; |
| struct hw_queue hw_rqueue1; |
| struct hw_queue hw_rqueue2; |
| struct hw_queue hw_rqueue3; |
| struct h_epas epas; |
| struct ehea_qp_init_attr init_attr; |
| }; |
| |
| /* |
| * Completion Queue attributes |
| */ |
| struct ehea_cq_attr { |
| /* input parameter */ |
| u32 max_nr_of_cqes; |
| u32 cq_token; |
| u64 eq_handle; |
| |
| /* output parameter */ |
| u32 act_nr_of_cqes; |
| u32 nr_pages; |
| }; |
| |
| /* |
| * Completion Queue |
| */ |
| struct ehea_cq { |
| struct ehea_adapter *adapter; |
| u64 fw_handle; |
| struct hw_queue hw_queue; |
| struct h_epas epas; |
| struct ehea_cq_attr attr; |
| }; |
| |
| /* |
| * Memory Region |
| */ |
| struct ehea_mr { |
| struct ehea_adapter *adapter; |
| u64 handle; |
| u64 vaddr; |
| u32 lkey; |
| }; |
| |
| /* |
| * Port state information |
| */ |
| struct port_stats { |
| int poll_receive_errors; |
| int queue_stopped; |
| int err_tcp_cksum; |
| int err_ip_cksum; |
| int err_frame_crc; |
| }; |
| |
| #define EHEA_IRQ_NAME_SIZE 20 |
| |
| /* |
| * Queue SKB Array |
| */ |
| struct ehea_q_skb_arr { |
| struct sk_buff **arr; /* skb array for queue */ |
| int len; /* array length */ |
| int index; /* array index */ |
| int os_skbs; /* rq2/rq3 only: outstanding skbs */ |
| }; |
| |
| /* |
| * Port resources |
| */ |
| struct ehea_port_res { |
| struct napi_struct napi; |
| struct port_stats p_stats; |
| struct ehea_mr send_mr; /* send memory region */ |
| struct ehea_mr recv_mr; /* receive memory region */ |
| spinlock_t xmit_lock; |
| struct ehea_port *port; |
| char int_recv_name[EHEA_IRQ_NAME_SIZE]; |
| char int_send_name[EHEA_IRQ_NAME_SIZE]; |
| struct ehea_qp *qp; |
| struct ehea_cq *send_cq; |
| struct ehea_cq *recv_cq; |
| struct ehea_eq *eq; |
| struct ehea_q_skb_arr rq1_skba; |
| struct ehea_q_skb_arr rq2_skba; |
| struct ehea_q_skb_arr rq3_skba; |
| struct ehea_q_skb_arr sq_skba; |
| spinlock_t netif_queue; |
| int queue_stopped; |
| int swqe_refill_th; |
| atomic_t swqe_avail; |
| int swqe_ll_count; |
| u32 swqe_id_counter; |
| u64 tx_packets; |
| u64 rx_packets; |
| u32 poll_counter; |
| struct net_lro_mgr lro_mgr; |
| struct net_lro_desc lro_desc[MAX_LRO_DESCRIPTORS]; |
| }; |
| |
| |
| #define EHEA_MAX_PORTS 16 |
| struct ehea_adapter { |
| u64 handle; |
| struct of_device *ofdev; |
| struct ehea_port *port[EHEA_MAX_PORTS]; |
| struct ehea_eq *neq; /* notification event queue */ |
| struct tasklet_struct neq_tasklet; |
| struct ehea_mr mr; |
| u32 pd; /* protection domain */ |
| u64 max_mc_mac; /* max number of multicast mac addresses */ |
| int active_ports; |
| struct list_head list; |
| }; |
| |
| |
| struct ehea_mc_list { |
| struct list_head list; |
| u64 macaddr; |
| }; |
| |
| #define EHEA_PORT_UP 1 |
| #define EHEA_PORT_DOWN 0 |
| #define EHEA_PHY_LINK_UP 1 |
| #define EHEA_PHY_LINK_DOWN 0 |
| #define EHEA_MAX_PORT_RES 16 |
| struct ehea_port { |
| struct ehea_adapter *adapter; /* adapter that owns this port */ |
| struct net_device *netdev; |
| struct net_device_stats stats; |
| struct ehea_port_res port_res[EHEA_MAX_PORT_RES]; |
| struct of_device ofdev; /* Open Firmware Device */ |
| struct ehea_mc_list *mc_list; /* Multicast MAC addresses */ |
| struct vlan_group *vgrp; |
| struct ehea_eq *qp_eq; |
| struct work_struct reset_task; |
| struct semaphore port_lock; |
| char int_aff_name[EHEA_IRQ_NAME_SIZE]; |
| int allmulti; /* Indicates IFF_ALLMULTI state */ |
| int promisc; /* Indicates IFF_PROMISC state */ |
| int num_tx_qps; |
| int num_add_tx_qps; |
| int num_mcs; |
| int resets; |
| u64 mac_addr; |
| u32 logical_port_id; |
| u32 port_speed; |
| u32 msg_enable; |
| u32 sig_comp_iv; |
| u32 state; |
| u32 lro_max_aggr; |
| u8 phy_link; |
| u8 full_duplex; |
| u8 autoneg; |
| u8 num_def_qps; |
| }; |
| |
| struct port_res_cfg { |
| int max_entries_rcq; |
| int max_entries_scq; |
| int max_entries_sq; |
| int max_entries_rq1; |
| int max_entries_rq2; |
| int max_entries_rq3; |
| }; |
| |
| enum ehea_flag_bits { |
| __EHEA_STOP_XFER |
| }; |
| |
| void ehea_set_ethtool_ops(struct net_device *netdev); |
| int ehea_sense_port_attr(struct ehea_port *port); |
| int ehea_set_portspeed(struct ehea_port *port, u32 port_speed); |
| |
| #endif /* __EHEA_H__ */ |