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342 lines
7.5 KiB
342 lines
7.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/*lcs.h*/ |
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#include <linux/interrupt.h> |
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#include <linux/netdevice.h> |
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#include <linux/skbuff.h> |
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#include <linux/workqueue.h> |
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#include <linux/refcount.h> |
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#include <asm/ccwdev.h> |
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#define LCS_DBF_TEXT(level, name, text) \ |
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do { \ |
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debug_text_event(lcs_dbf_##name, level, text); \ |
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} while (0) |
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#define LCS_DBF_HEX(level,name,addr,len) \ |
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do { \ |
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debug_event(lcs_dbf_##name,level,(void*)(addr),len); \ |
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} while (0) |
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#define LCS_DBF_TEXT_(level,name,text...) \ |
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do { \ |
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if (debug_level_enabled(lcs_dbf_##name, level)) { \ |
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sprintf(debug_buffer, text); \ |
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debug_text_event(lcs_dbf_##name, level, debug_buffer); \ |
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} \ |
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} while (0) |
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/** |
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* sysfs related stuff |
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*/ |
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#define CARD_FROM_DEV(cdev) \ |
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(struct lcs_card *) dev_get_drvdata( \ |
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&((struct ccwgroup_device *)dev_get_drvdata(&cdev->dev))->dev); |
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/** |
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* Enum for classifying detected devices. |
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*/ |
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enum lcs_channel_types { |
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/* Device is not a channel */ |
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lcs_channel_type_none, |
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/* Device is a 2216 channel */ |
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lcs_channel_type_parallel, |
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/* Device is a 2216 channel */ |
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lcs_channel_type_2216, |
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/* Device is a OSA2 card */ |
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lcs_channel_type_osa2 |
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}; |
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/** |
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* CCW commands used in this driver |
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*/ |
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#define LCS_CCW_WRITE 0x01 |
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#define LCS_CCW_READ 0x02 |
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#define LCS_CCW_TRANSFER 0x08 |
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/** |
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* LCS device status primitives |
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*/ |
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#define LCS_CMD_STARTLAN 0x01 |
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#define LCS_CMD_STOPLAN 0x02 |
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#define LCS_CMD_LANSTAT 0x04 |
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#define LCS_CMD_STARTUP 0x07 |
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#define LCS_CMD_SHUTDOWN 0x08 |
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#define LCS_CMD_QIPASSIST 0xb2 |
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#define LCS_CMD_SETIPM 0xb4 |
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#define LCS_CMD_DELIPM 0xb5 |
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#define LCS_INITIATOR_TCPIP 0x00 |
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#define LCS_INITIATOR_LGW 0x01 |
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#define LCS_STD_CMD_SIZE 16 |
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#define LCS_MULTICAST_CMD_SIZE 404 |
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/** |
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* LCS IPASSIST MASKS,only used when multicast is switched on |
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*/ |
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/* Not supported by LCS */ |
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#define LCS_IPASS_ARP_PROCESSING 0x0001 |
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#define LCS_IPASS_IN_CHECKSUM_SUPPORT 0x0002 |
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#define LCS_IPASS_OUT_CHECKSUM_SUPPORT 0x0004 |
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#define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008 |
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#define LCS_IPASS_IP_FILTERING 0x0010 |
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/* Supported by lcs 3172 */ |
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#define LCS_IPASS_IPV6_SUPPORT 0x0020 |
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#define LCS_IPASS_MULTICAST_SUPPORT 0x0040 |
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/** |
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* LCS sense byte definitions |
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*/ |
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#define LCS_SENSE_BYTE_0 0 |
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#define LCS_SENSE_BYTE_1 1 |
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#define LCS_SENSE_BYTE_2 2 |
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#define LCS_SENSE_BYTE_3 3 |
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#define LCS_SENSE_INTERFACE_DISCONNECT 0x01 |
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#define LCS_SENSE_EQUIPMENT_CHECK 0x10 |
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#define LCS_SENSE_BUS_OUT_CHECK 0x20 |
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#define LCS_SENSE_INTERVENTION_REQUIRED 0x40 |
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#define LCS_SENSE_CMD_REJECT 0x80 |
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#define LCS_SENSE_RESETTING_EVENT 0x80 |
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#define LCS_SENSE_DEVICE_ONLINE 0x20 |
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/** |
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* LCS packet type definitions |
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*/ |
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#define LCS_FRAME_TYPE_CONTROL 0 |
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#define LCS_FRAME_TYPE_ENET 1 |
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#define LCS_FRAME_TYPE_TR 2 |
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#define LCS_FRAME_TYPE_FDDI 7 |
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#define LCS_FRAME_TYPE_AUTO -1 |
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/** |
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* some more definitions,we will sort them later |
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*/ |
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#define LCS_ILLEGAL_OFFSET 0xffff |
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#define LCS_IOBUFFERSIZE 0x5000 |
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#define LCS_NUM_BUFFS 32 /* needs to be power of 2 */ |
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#define LCS_MAC_LENGTH 6 |
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#define LCS_INVALID_PORT_NO -1 |
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#define LCS_LANCMD_TIMEOUT_DEFAULT 5 |
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/** |
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* Multicast state |
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*/ |
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#define LCS_IPM_STATE_SET_REQUIRED 0 |
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#define LCS_IPM_STATE_DEL_REQUIRED 1 |
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#define LCS_IPM_STATE_ON_CARD 2 |
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/** |
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* LCS IP Assist declarations |
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* seems to be only used for multicast |
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*/ |
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#define LCS_IPASS_ARP_PROCESSING 0x0001 |
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#define LCS_IPASS_INBOUND_CSUM_SUPP 0x0002 |
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#define LCS_IPASS_OUTBOUND_CSUM_SUPP 0x0004 |
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#define LCS_IPASS_IP_FRAG_REASSEMBLY 0x0008 |
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#define LCS_IPASS_IP_FILTERING 0x0010 |
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#define LCS_IPASS_IPV6_SUPPORT 0x0020 |
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#define LCS_IPASS_MULTICAST_SUPPORT 0x0040 |
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/** |
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* LCS Buffer states |
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*/ |
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enum lcs_buffer_states { |
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LCS_BUF_STATE_EMPTY, /* buffer is empty */ |
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LCS_BUF_STATE_LOCKED, /* buffer is locked, don't touch */ |
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LCS_BUF_STATE_READY, /* buffer is ready for read/write */ |
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LCS_BUF_STATE_PROCESSED, |
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}; |
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/** |
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* LCS Channel State Machine declarations |
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*/ |
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enum lcs_channel_states { |
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LCS_CH_STATE_INIT, |
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LCS_CH_STATE_HALTED, |
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LCS_CH_STATE_STOPPED, |
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LCS_CH_STATE_RUNNING, |
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LCS_CH_STATE_SUSPENDED, |
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LCS_CH_STATE_CLEARED, |
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LCS_CH_STATE_ERROR, |
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}; |
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/** |
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* LCS device state machine |
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*/ |
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enum lcs_dev_states { |
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DEV_STATE_DOWN, |
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DEV_STATE_UP, |
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DEV_STATE_RECOVER, |
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}; |
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enum lcs_threads { |
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LCS_SET_MC_THREAD = 1, |
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LCS_RECOVERY_THREAD = 2, |
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}; |
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/** |
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* LCS struct declarations |
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*/ |
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struct lcs_header { |
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__u16 offset; |
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__u8 type; |
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__u8 slot; |
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} __attribute__ ((packed)); |
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struct lcs_ip_mac_pair { |
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__be32 ip_addr; |
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__u8 mac_addr[LCS_MAC_LENGTH]; |
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__u8 reserved[2]; |
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} __attribute__ ((packed)); |
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struct lcs_ipm_list { |
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struct list_head list; |
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struct lcs_ip_mac_pair ipm; |
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__u8 ipm_state; |
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}; |
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struct lcs_cmd { |
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__u16 offset; |
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__u8 type; |
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__u8 slot; |
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__u8 cmd_code; |
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__u8 initiator; |
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__u16 sequence_no; |
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__u16 return_code; |
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union { |
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struct { |
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__u8 lan_type; |
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__u8 portno; |
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__u16 parameter_count; |
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__u8 operator_flags[3]; |
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__u8 reserved[3]; |
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} lcs_std_cmd; |
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struct { |
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__u16 unused1; |
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__u16 buff_size; |
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__u8 unused2[6]; |
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} lcs_startup; |
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struct { |
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__u8 lan_type; |
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__u8 portno; |
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__u8 unused[10]; |
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__u8 mac_addr[LCS_MAC_LENGTH]; |
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__u32 num_packets_deblocked; |
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__u32 num_packets_blocked; |
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__u32 num_packets_tx_on_lan; |
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__u32 num_tx_errors_detected; |
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__u32 num_tx_packets_disgarded; |
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__u32 num_packets_rx_from_lan; |
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__u32 num_rx_errors_detected; |
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__u32 num_rx_discarded_nobuffs_avail; |
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__u32 num_rx_packets_too_large; |
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} lcs_lanstat_cmd; |
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#ifdef CONFIG_IP_MULTICAST |
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struct { |
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__u8 lan_type; |
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__u8 portno; |
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__u16 num_ip_pairs; |
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__u16 ip_assists_supported; |
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__u16 ip_assists_enabled; |
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__u16 version; |
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struct { |
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struct lcs_ip_mac_pair |
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ip_mac_pair[32]; |
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__u32 response_data; |
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} lcs_ipass_ctlmsg __attribute ((packed)); |
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} lcs_qipassist __attribute__ ((packed)); |
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#endif /*CONFIG_IP_MULTICAST */ |
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} cmd __attribute__ ((packed)); |
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} __attribute__ ((packed)); |
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/** |
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* Forward declarations. |
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*/ |
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struct lcs_card; |
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struct lcs_channel; |
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/** |
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* Definition of an lcs buffer. |
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*/ |
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struct lcs_buffer { |
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enum lcs_buffer_states state; |
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void *data; |
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int count; |
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/* Callback for completion notification. */ |
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void (*callback)(struct lcs_channel *, struct lcs_buffer *); |
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}; |
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struct lcs_reply { |
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struct list_head list; |
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__u16 sequence_no; |
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refcount_t refcnt; |
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/* Callback for completion notification. */ |
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void (*callback)(struct lcs_card *, struct lcs_cmd *); |
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wait_queue_head_t wait_q; |
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struct lcs_card *card; |
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struct timer_list timer; |
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int received; |
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int rc; |
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}; |
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/** |
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* Definition of an lcs channel |
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*/ |
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struct lcs_channel { |
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enum lcs_channel_states state; |
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struct ccw_device *ccwdev; |
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struct ccw1 ccws[LCS_NUM_BUFFS + 1]; |
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wait_queue_head_t wait_q; |
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struct tasklet_struct irq_tasklet; |
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struct lcs_buffer iob[LCS_NUM_BUFFS]; |
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int io_idx; |
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int buf_idx; |
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}; |
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/** |
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* definition of the lcs card |
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*/ |
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struct lcs_card { |
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spinlock_t lock; |
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spinlock_t ipm_lock; |
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enum lcs_dev_states state; |
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struct net_device *dev; |
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struct net_device_stats stats; |
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__be16 (*lan_type_trans)(struct sk_buff *skb, |
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struct net_device *dev); |
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struct ccwgroup_device *gdev; |
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struct lcs_channel read; |
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struct lcs_channel write; |
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struct lcs_buffer *tx_buffer; |
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int tx_emitted; |
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struct list_head lancmd_waiters; |
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int lancmd_timeout; |
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struct work_struct kernel_thread_starter; |
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spinlock_t mask_lock; |
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unsigned long thread_start_mask; |
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unsigned long thread_running_mask; |
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unsigned long thread_allowed_mask; |
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wait_queue_head_t wait_q; |
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#ifdef CONFIG_IP_MULTICAST |
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struct list_head ipm_list; |
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#endif |
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__u8 mac[LCS_MAC_LENGTH]; |
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__u16 ip_assists_supported; |
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__u16 ip_assists_enabled; |
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__s8 lan_type; |
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__u32 pkt_seq; |
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__u16 sequence_no; |
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__s16 portno; |
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/* Some info copied from probeinfo */ |
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u8 device_forced; |
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u8 max_port_no; |
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u8 hint_port_no; |
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s16 port_protocol_no; |
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} __attribute__ ((aligned(8))); |
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