| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Peter Tiedemann | 850 | 96.48% | 3 | 30.00% |
| Ursula Braun-Krahl | 20 | 2.27% | 2 | 20.00% |
| Sebastian Ott | 6 | 0.68% | 1 | 10.00% |
| Aya Mahfouz | 2 | 0.23% | 1 | 10.00% |
| Greg Kroah-Hartman | 1 | 0.11% | 1 | 10.00% |
| Kay Sievers | 1 | 0.11% | 1 | 10.00% |
| Heiko Carstens | 1 | 0.11% | 1 | 10.00% |
| Total | 881 | 10 |
/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2001, 2007 * Authors: Fritz Elfert (felfert@millenux.com) * Peter Tiedemann (ptiedem@de.ibm.com) */ #ifndef _CTCM_MAIN_H_ #define _CTCM_MAIN_H_ #include <asm/ccwdev.h> #include <asm/ccwgroup.h> #include <linux/skbuff.h> #include <linux/netdevice.h> #include "fsm.h" #include "ctcm_dbug.h" #include "ctcm_mpc.h" #define CTC_DRIVER_NAME "ctcm" #define CTC_DEVICE_NAME "ctc" #define MPC_DEVICE_NAME "mpc" #define CTC_DEVICE_GENE CTC_DEVICE_NAME "%d" #define MPC_DEVICE_GENE MPC_DEVICE_NAME "%d" #define CHANNEL_FLAGS_READ 0 #define CHANNEL_FLAGS_WRITE 1 #define CHANNEL_FLAGS_INUSE 2 #define CHANNEL_FLAGS_BUFSIZE_CHANGED 4 #define CHANNEL_FLAGS_FAILED 8 #define CHANNEL_FLAGS_WAITIRQ 16 #define CHANNEL_FLAGS_RWMASK 1 #define CHANNEL_DIRECTION(f) (f & CHANNEL_FLAGS_RWMASK) #define LOG_FLAG_ILLEGALPKT 1 #define LOG_FLAG_ILLEGALSIZE 2 #define LOG_FLAG_OVERRUN 4 #define LOG_FLAG_NOMEM 8 #define ctcm_pr_debug(fmt, arg...) printk(KERN_DEBUG fmt, ##arg) #define CTCM_PR_DEBUG(fmt, arg...) \ do { \ if (do_debug) \ printk(KERN_DEBUG fmt, ##arg); \ } while (0) #define CTCM_PR_DBGDATA(fmt, arg...) \ do { \ if (do_debug_data) \ printk(KERN_DEBUG fmt, ##arg); \ } while (0) #define CTCM_D3_DUMP(buf, len) \ do { \ if (do_debug_data) \ ctcmpc_dumpit(buf, len); \ } while (0) #define CTCM_CCW_DUMP(buf, len) \ do { \ if (do_debug_ccw) \ ctcmpc_dumpit(buf, len); \ } while (0) /** * Enum for classifying detected devices */ enum ctcm_channel_types { /* Device is not a channel */ ctcm_channel_type_none, /* Device is a CTC/A */ ctcm_channel_type_parallel, /* Device is a FICON channel */ ctcm_channel_type_ficon, /* Device is a ESCON channel */ ctcm_channel_type_escon }; /* * CCW commands, used in this driver. */ #define CCW_CMD_WRITE 0x01 #define CCW_CMD_READ 0x02 #define CCW_CMD_NOOP 0x03 #define CCW_CMD_TIC 0x08 #define CCW_CMD_SENSE_CMD 0x14 #define CCW_CMD_WRITE_CTL 0x17 #define CCW_CMD_SET_EXTENDED 0xc3 #define CCW_CMD_PREPARE 0xe3 #define CTCM_PROTO_S390 0 #define CTCM_PROTO_LINUX 1 #define CTCM_PROTO_LINUX_TTY 2 #define CTCM_PROTO_OS390 3 #define CTCM_PROTO_MPC 4 #define CTCM_PROTO_MAX 4 #define CTCM_BUFSIZE_LIMIT 65535 #define CTCM_BUFSIZE_DEFAULT 32768 #define MPC_BUFSIZE_DEFAULT CTCM_BUFSIZE_LIMIT #define CTCM_TIME_1_SEC 1000 #define CTCM_TIME_5_SEC 5000 #define CTCM_TIME_10_SEC 10000 #define CTCM_INITIAL_BLOCKLEN 2 #define CTCM_READ 0 #define CTCM_WRITE 1 #define CTCM_ID_SIZE 20+3 struct ctcm_profile { unsigned long maxmulti; unsigned long maxcqueue; unsigned long doios_single; unsigned long doios_multi; unsigned long txlen; unsigned long tx_time; unsigned long send_stamp; }; /* * Definition of one channel */ struct channel { struct channel *next; char id[CTCM_ID_SIZE]; struct ccw_device *cdev; /* * Type of this channel. * CTC/A or Escon for valid channels. */ enum ctcm_channel_types type; /* * Misc. flags. See CHANNEL_FLAGS_... below */ __u32 flags; __u16 protocol; /* protocol of this channel (4 = MPC) */ /* * I/O and irq related stuff */ struct ccw1 *ccw; struct irb *irb; /* * RX/TX buffer size */ int max_bufsize; struct sk_buff *trans_skb; /* transmit/receive buffer */ struct sk_buff_head io_queue; /* universal I/O queue */ struct tasklet_struct ch_tasklet; /* MPC ONLY */ /* * TX queue for collecting skb's during busy. */ struct sk_buff_head collect_queue; /* * Amount of data in collect_queue. */ int collect_len; /* * spinlock for collect_queue and collect_len */ spinlock_t collect_lock; /* * Timer for detecting unresposive * I/O operations. */ fsm_timer timer; /* MPC ONLY section begin */ __u32 th_seq_num; /* SNA TH seq number */ __u8 th_seg; __u32 pdu_seq; struct sk_buff *xid_skb; char *xid_skb_data; struct th_header *xid_th; struct xid2 *xid; char *xid_id; struct th_header *rcvd_xid_th; struct xid2 *rcvd_xid; char *rcvd_xid_id; __u8 in_mpcgroup; fsm_timer sweep_timer; struct sk_buff_head sweep_queue; struct th_header *discontact_th; struct tasklet_struct ch_disc_tasklet; /* MPC ONLY section end */ int retry; /* retry counter for misc. operations */ fsm_instance *fsm; /* finite state machine of this channel */ struct net_device *netdev; /* corresponding net_device */ struct ctcm_profile prof; __u8 *trans_skb_data; __u16 logflags; __u8 sense_rc; /* last unit check sense code report control */ }; struct ctcm_priv { struct net_device_stats stats; unsigned long tbusy; /* The MPC group struct of this interface */ struct mpc_group *mpcg; /* MPC only */ struct xid2 *xid; /* MPC only */ /* The finite state machine of this interface */ fsm_instance *fsm; /* The protocol of this device */ __u16 protocol; /* Timer for restarting after I/O Errors */ fsm_timer restart_timer; int buffer_size; /* ctc only */ struct channel *channel[2]; }; int ctcm_open(struct net_device *dev); int ctcm_close(struct net_device *dev); extern const struct attribute_group *ctcm_attr_groups[]; /* * Compatibility macros for busy handling * of network devices. */ static inline void ctcm_clear_busy_do(struct net_device *dev) { clear_bit(0, &(((struct ctcm_priv *)dev->ml_priv)->tbusy)); netif_wake_queue(dev); } static inline void ctcm_clear_busy(struct net_device *dev) { struct mpc_group *grp; grp = ((struct ctcm_priv *)dev->ml_priv)->mpcg; if (!(grp && grp->in_sweep)) ctcm_clear_busy_do(dev); } static inline int ctcm_test_and_set_busy(struct net_device *dev) { netif_stop_queue(dev); return test_and_set_bit(0, &(((struct ctcm_priv *)dev->ml_priv)->tbusy)); } extern int loglevel; extern struct channel *channels; void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb); /* * Functions related to setup and device detection. */ static inline int ctcm_less_than(char *id1, char *id2) { unsigned long dev1, dev2; id1 = id1 + 5; id2 = id2 + 5; dev1 = simple_strtoul(id1, &id1, 16); dev2 = simple_strtoul(id2, &id2, 16); return (dev1 < dev2); } int ctcm_ch_alloc_buffer(struct channel *ch); static inline int ctcm_checkalloc_buffer(struct channel *ch) { if (ch->trans_skb == NULL) return ctcm_ch_alloc_buffer(ch); if (ch->flags & CHANNEL_FLAGS_BUFSIZE_CHANGED) { dev_kfree_skb(ch->trans_skb); return ctcm_ch_alloc_buffer(ch); } return 0; } struct mpc_group *ctcmpc_init_mpc_group(struct ctcm_priv *priv); /* test if protocol attribute (of struct ctcm_priv or struct channel) * has MPC protocol setting. Type is not checked */ #define IS_MPC(p) ((p)->protocol == CTCM_PROTO_MPC) /* test if struct ctcm_priv of struct net_device has MPC protocol setting */ #define IS_MPCDEV(dev) IS_MPC((struct ctcm_priv *)dev->ml_priv) /* * Definition of our link level header. */ struct ll_header { __u16 length; __u16 type; __u16 unused; }; #define LL_HEADER_LENGTH (sizeof(struct ll_header)) #endif
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