diff options
| -rw-r--r-- | drivers/s390/net/ctcm_dbug.c | 29 | ||||
| -rw-r--r-- | drivers/s390/net/ctcm_dbug.h | 39 | ||||
| -rw-r--r-- | drivers/s390/net/ctcm_fsms.c | 402 | ||||
| -rw-r--r-- | drivers/s390/net/ctcm_main.c | 514 | ||||
| -rw-r--r-- | drivers/s390/net/ctcm_main.h | 31 | ||||
| -rw-r--r-- | drivers/s390/net/ctcm_mpc.c | 1110 | ||||
| -rw-r--r-- | drivers/s390/net/ctcm_mpc.h | 2 |
7 files changed, 882 insertions, 1245 deletions
diff --git a/drivers/s390/net/ctcm_dbug.c b/drivers/s390/net/ctcm_dbug.c index 8eb25d0..1ca58f1 100644 --- a/drivers/s390/net/ctcm_dbug.c +++ b/drivers/s390/net/ctcm_dbug.c @@ -7,6 +7,7 @@ */ #include <linux/stddef.h> +#include <linux/string.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/slab.h> @@ -22,15 +23,13 @@ * Debug Facility Stuff */ -DEFINE_PER_CPU(char[256], ctcm_dbf_txt_buf); - struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS] = { - [CTCM_DBF_SETUP] = {"ctc_setup", 8, 1, 64, 5, NULL}, - [CTCM_DBF_ERROR] = {"ctc_error", 8, 1, 64, 3, NULL}, - [CTCM_DBF_TRACE] = {"ctc_trace", 8, 1, 64, 3, NULL}, - [CTCM_DBF_MPC_SETUP] = {"mpc_setup", 8, 1, 64, 5, NULL}, - [CTCM_DBF_MPC_ERROR] = {"mpc_error", 8, 1, 64, 3, NULL}, - [CTCM_DBF_MPC_TRACE] = {"mpc_trace", 8, 1, 64, 3, NULL}, + [CTCM_DBF_SETUP] = {"ctc_setup", 8, 1, 64, CTC_DBF_INFO, NULL}, + [CTCM_DBF_ERROR] = {"ctc_error", 8, 1, 64, CTC_DBF_ERROR, NULL}, + [CTCM_DBF_TRACE] = {"ctc_trace", 8, 1, 64, CTC_DBF_ERROR, NULL}, + [CTCM_DBF_MPC_SETUP] = {"mpc_setup", 8, 1, 80, CTC_DBF_INFO, NULL}, + [CTCM_DBF_MPC_ERROR] = {"mpc_error", 8, 1, 80, CTC_DBF_ERROR, NULL}, + [CTCM_DBF_MPC_TRACE] = {"mpc_trace", 8, 1, 80, CTC_DBF_ERROR, NULL}, }; void ctcm_unregister_dbf_views(void) @@ -65,3 +64,17 @@ int ctcm_register_dbf_views(void) return 0; } +void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *fmt, ...) +{ + char dbf_txt_buf[64]; + va_list args; + + if (level > (ctcm_dbf[dbf_nix].id)->level) + return; + va_start(args, fmt); + vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); + va_end(args); + + debug_text_event(ctcm_dbf[dbf_nix].id, level, dbf_txt_buf); +} + diff --git a/drivers/s390/net/ctcm_dbug.h b/drivers/s390/net/ctcm_dbug.h index fdff34f..26966d0 100644 --- a/drivers/s390/net/ctcm_dbug.h +++ b/drivers/s390/net/ctcm_dbug.h @@ -20,16 +20,17 @@ #else #define do_debug 0 #endif -#ifdef DEBUGDATA - #define do_debug_data 1 -#else - #define do_debug_data 0 -#endif #ifdef DEBUGCCW #define do_debug_ccw 1 + #define DEBUGDATA 1 #else #define do_debug_ccw 0 #endif +#ifdef DEBUGDATA + #define do_debug_data 1 +#else + #define do_debug_data 0 +#endif /* define dbf debug levels similar to kernel msg levels */ #define CTC_DBF_ALWAYS 0 /* always print this */ @@ -42,8 +43,6 @@ #define CTC_DBF_INFO 5 /* informational */ #define CTC_DBF_DEBUG 6 /* debug-level messages */ -DECLARE_PER_CPU(char[256], ctcm_dbf_txt_buf); - enum ctcm_dbf_names { CTCM_DBF_SETUP, CTCM_DBF_ERROR, @@ -67,6 +66,7 @@ extern struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS]; int ctcm_register_dbf_views(void); void ctcm_unregister_dbf_views(void); +void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *text, ...); static inline const char *strtail(const char *s, int n) { @@ -74,12 +74,6 @@ static inline const char *strtail(const char *s, int n) return (l > n) ? s + (l - n) : s; } -/* sort out levels early to avoid unnecessary sprintfs */ -static inline int ctcm_dbf_passes(debug_info_t *dbf_grp, int level) -{ - return (dbf_grp->level >= level); -} - #define CTCM_FUNTAIL strtail((char *)__func__, 16) #define CTCM_DBF_TEXT(name, level, text) \ @@ -94,16 +88,7 @@ static inline int ctcm_dbf_passes(debug_info_t *dbf_grp, int level) } while (0) #define CTCM_DBF_TEXT_(name, level, text...) \ - do { \ - if (ctcm_dbf_passes(ctcm_dbf[CTCM_DBF_##name].id, level)) { \ - char *ctcm_dbf_txt_buf = \ - get_cpu_var(ctcm_dbf_txt_buf); \ - sprintf(ctcm_dbf_txt_buf, text); \ - debug_text_event(ctcm_dbf[CTCM_DBF_##name].id, \ - level, ctcm_dbf_txt_buf); \ - put_cpu_var(ctcm_dbf_txt_buf); \ - } \ - } while (0) + ctcm_dbf_longtext(CTCM_DBF_##name, level, text) /* * cat : one of {setup, mpc_setup, trace, mpc_trace, error, mpc_error}. @@ -112,13 +97,13 @@ static inline int ctcm_dbf_passes(debug_info_t *dbf_grp, int level) */ #define CTCM_DBF_DEV_NAME(cat, dev, text) \ do { \ - CTCM_DBF_TEXT_(cat, CTC_DBF_INFO, "%s(%s) : %s", \ + CTCM_DBF_TEXT_(cat, CTC_DBF_INFO, "%s(%s) :- %s", \ CTCM_FUNTAIL, dev->name, text); \ } while (0) #define MPC_DBF_DEV_NAME(cat, dev, text) \ do { \ - CTCM_DBF_TEXT_(MPC_##cat, CTC_DBF_INFO, "%s(%s) : %s", \ + CTCM_DBF_TEXT_(MPC_##cat, CTC_DBF_INFO, "%s(%s) := %s", \ CTCM_FUNTAIL, dev->name, text); \ } while (0) @@ -137,13 +122,13 @@ static inline int ctcm_dbf_passes(debug_info_t *dbf_grp, int level) */ #define CTCM_DBF_DEV(cat, dev, text) \ do { \ - CTCM_DBF_TEXT_(cat, CTC_DBF_INFO, "%s(%p) : %s", \ + CTCM_DBF_TEXT_(cat, CTC_DBF_INFO, "%s(%p) :-: %s", \ CTCM_FUNTAIL, dev, text); \ } while (0) #define MPC_DBF_DEV(cat, dev, text) \ do { \ - CTCM_DBF_TEXT_(MPC_##cat, CTC_DBF_INFO, "%s(%p) : %s", \ + CTCM_DBF_TEXT_(MPC_##cat, CTC_DBF_INFO, "%s(%p) :=: %s", \ CTCM_FUNTAIL, dev, text); \ } while (0) diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c index 7e6bd38..0b4e625 100644 --- a/drivers/s390/net/ctcm_fsms.c +++ b/drivers/s390/net/ctcm_fsms.c @@ -190,7 +190,8 @@ static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg); void ctcm_ccw_check_rc(struct channel *ch, int rc, char *msg) { CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, - "ccw error %s (%s): %04x\n", ch->id, msg, rc); + "%s(%s): %s: %04x\n", + CTCM_FUNTAIL, ch->id, msg, rc); switch (rc) { case -EBUSY: ctcm_pr_warn("%s (%s): Busy !\n", ch->id, msg); @@ -212,7 +213,7 @@ void ctcm_purge_skb_queue(struct sk_buff_head *q) { struct sk_buff *skb; - CTCM_DBF_TEXT(TRACE, 3, __FUNCTION__); + CTCM_DBF_TEXT(TRACE, CTC_DBF_DEBUG, __func__); while ((skb = skb_dequeue(q))) { atomic_dec(&skb->users); @@ -251,6 +252,8 @@ static void chx_txdone(fsm_instance *fi, int event, void *arg) unsigned long duration; struct timespec done_stamp = current_kernel_time(); /* xtime */ + CTCM_PR_DEBUG("%s(%s): %s\n", __func__, ch->id, dev->name); + duration = (done_stamp.tv_sec - ch->prof.send_stamp.tv_sec) * 1000000 + (done_stamp.tv_nsec - ch->prof.send_stamp.tv_nsec) / 1000; @@ -258,8 +261,9 @@ static void chx_txdone(fsm_instance *fi, int event, void *arg) ch->prof.tx_time = duration; if (ch->irb->scsw.cmd.count != 0) - ctcm_pr_debug("%s: TX not complete, remaining %d bytes\n", - dev->name, ch->irb->scsw.cmd.count); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, + "%s(%s): TX not complete, remaining %d bytes", + CTCM_FUNTAIL, dev->name, ch->irb->scsw.cmd.count); fsm_deltimer(&ch->timer); while ((skb = skb_dequeue(&ch->io_queue))) { priv->stats.tx_packets++; @@ -334,7 +338,8 @@ void ctcm_chx_txidle(fsm_instance *fi, int event, void *arg) struct net_device *dev = ch->netdev; struct ctcm_priv *priv = dev->priv; - CTCM_DBF_TEXT(TRACE, 6, __FUNCTION__); + CTCM_PR_DEBUG("%s(%s): %s\n", __func__, ch->id, dev->name); + fsm_deltimer(&ch->timer); fsm_newstate(fi, CTC_STATE_TXIDLE); fsm_event(priv->fsm, DEV_EVENT_TXUP, ch->netdev); @@ -361,15 +366,17 @@ static void chx_rx(fsm_instance *fi, int event, void *arg) fsm_deltimer(&ch->timer); if (len < 8) { - ctcm_pr_debug("%s: got packet with length %d < 8\n", - dev->name, len); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_NOTICE, + "%s(%s): got packet with length %d < 8\n", + CTCM_FUNTAIL, dev->name, len); priv->stats.rx_dropped++; priv->stats.rx_length_errors++; goto again; } if (len > ch->max_bufsize) { - ctcm_pr_debug("%s: got packet with length %d > %d\n", - dev->name, len, ch->max_bufsize); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_NOTICE, + "%s(%s): got packet with length %d > %d\n", + CTCM_FUNTAIL, dev->name, len, ch->max_bufsize); priv->stats.rx_dropped++; priv->stats.rx_length_errors++; goto again; @@ -388,8 +395,9 @@ static void chx_rx(fsm_instance *fi, int event, void *arg) break; } if ((len < block_len) || (len > check_len)) { - ctcm_pr_debug("%s: got block length %d != rx length %d\n", - dev->name, block_len, len); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_NOTICE, + "%s(%s): got block length %d != rx length %d\n", + CTCM_FUNTAIL, dev->name, block_len, len); if (do_debug) ctcmpc_dump_skb(skb, 0); @@ -425,17 +433,23 @@ static void chx_rx(fsm_instance *fi, int event, void *arg) */ static void chx_firstio(fsm_instance *fi, int event, void *arg) { - struct channel *ch = arg; int rc; + struct channel *ch = arg; + int fsmstate = fsm_getstate(fi); - CTCM_DBF_TEXT(TRACE, 6, __FUNCTION__); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_NOTICE, + "%s(%s) : %02x", + CTCM_FUNTAIL, ch->id, fsmstate); - if (fsm_getstate(fi) == CTC_STATE_TXIDLE) - ctcm_pr_debug("%s: remote side issued READ?, init.\n", ch->id); + ch->sense_rc = 0; /* reset unit check report control */ + if (fsmstate == CTC_STATE_TXIDLE) + CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, + "%s(%s): remote side issued READ?, init.\n", + CTCM_FUNTAIL, ch->id); fsm_deltimer(&ch->timer); if (ctcm_checkalloc_buffer(ch)) return; - if ((fsm_getstate(fi) == CTC_STATE_SETUPWAIT) && + if ((fsmstate == CTC_STATE_SETUPWAIT) && (ch->protocol == CTCM_PROTO_OS390)) { /* OS/390 resp. z/OS */ if (CHANNEL_DIRECTION(ch->flags) == READ) { @@ -451,7 +465,6 @@ static void chx_firstio(fsm_instance *fi, int event, void *arg) } return; } - /* * Don't setup a timer for receiving the initial RX frame * if in compatibility mode, since VM TCP delays the initial @@ -505,11 +518,10 @@ static void chx_rxidle(fsm_instance *fi, int event, void *arg) __u16 buflen; int rc; - CTCM_DBF_TEXT(TRACE, 6, __FUNCTION__); fsm_deltimer(&ch->timer); buflen = *((__u16 *)ch->trans_skb->data); - if (do_debug) - ctcm_pr_debug("%s: Initial RX count %d\n", dev->name, buflen); + CTCM_PR_DEBUG("%s: %s: Initial RX count = %d\n", + __func__, dev->name, buflen); if (buflen >= CTCM_INITIAL_BLOCKLEN) { if (ctcm_checkalloc_buffer(ch)) @@ -524,9 +536,9 @@ static void chx_rxidle(fsm_instance *fi, int event, void *arg) } else fsm_event(priv->fsm, DEV_EVENT_RXUP, dev); } else { - if (do_debug) - ctcm_pr_debug("%s: Initial RX count %d not %d\n", - dev->name, buflen, CTCM_INITIAL_BLOCKLEN); + CTCM_PR_DEBUG("%s: %s: Initial RX count %d not %d\n", + __func__, dev->name, + buflen, CTCM_INITIAL_BLOCKLEN); chx_firstio(fi, event, arg); } } @@ -548,14 +560,12 @@ static void ctcm_chx_setmode(fsm_instance *fi, int event, void *arg) fsm_deltimer(&ch->timer); if (IS_MPC(ch)) { timeout = 1500; - if (do_debug) - ctcm_pr_debug("ctcm enter: %s(): cp=%i ch=0x%p id=%s\n", - __FUNCTION__, smp_processor_id(), ch, ch->id); + CTCM_PR_DEBUG("enter %s: cp=%i ch=0x%p id=%s\n", + __func__, smp_processor_id(), ch, ch->id); } fsm_addtimer(&ch->timer, timeout, CTC_EVENT_TIMER, ch); fsm_newstate(fi, CTC_STATE_SETUPWAIT); - if (do_debug_ccw && IS_MPC(ch)) - ctcmpc_dumpit((char *)&ch->ccw[6], sizeof(struct ccw1) * 2); + CTCM_CCW_DUMP((char *)&ch->ccw[6], sizeof(struct ccw1) * 2); if (event == CTC_EVENT_TIMER) /* only for timer not yet locked */ spin_lock_irqsave(get_ccwdev_lock(ch->cdev), saveflags); @@ -583,24 +593,12 @@ static void ctcm_chx_setmode(fsm_instance *fi, int event, void *arg) */ static void ctcm_chx_start(fsm_instance *fi, int event, void *arg) { - struct channel *ch = arg; - int rc; - struct net_device *dev; + struct channel *ch = arg; unsigned long saveflags; + int rc; - CTCM_DBF_TEXT(TRACE, 5, __FUNCTION__); - if (ch == NULL) { - ctcm_pr_warn("chx_start ch=NULL\n"); - return; - } - if (ch->netdev == NULL) { - ctcm_pr_warn("chx_start dev=NULL, id=%s\n", ch->id); - return; - } - dev = ch->netdev; - - if (do_debug) - ctcm_pr_debug("%s: %s channel start\n", dev->name, + CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, "%s(%s): %s", + CTCM_FUNTAIL, ch->id, (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX"); if (ch->trans_skb != NULL) { @@ -618,11 +616,12 @@ static void ctcm_chx_start(fsm_instance *fi, int event, void *arg) ch->ccw[1].count = 0; } if (ctcm_checkalloc_buffer(ch)) { - ctcm_pr_notice("%s: %s trans_skb allocation delayed " - "until first transfer\n", dev->name, + CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, + "%s(%s): %s trans_skb alloc delayed " + "until first transfer", + CTCM_FUNTAIL, ch->id, (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX"); } - ch->ccw[0].cmd_code = CCW_CMD_PREPARE; ch->ccw[0].flags = CCW_FLAG_SLI | CCW_FLAG_CC; ch->ccw[0].count = 0; @@ -661,7 +660,6 @@ static void ctcm_chx_haltio(fsm_instance *fi, int event, void *arg) int rc; int oldstate; - CTCM_DBF_TEXT(TRACE, 2, __FUNCTION__); fsm_deltimer(&ch->timer); if (IS_MPC(ch)) fsm_deltimer(&ch->sweep_timer); @@ -684,7 +682,7 @@ static void ctcm_chx_haltio(fsm_instance *fi, int event, void *arg) fsm_deltimer(&ch->timer); if (event != CTC_EVENT_STOP) { fsm_newstate(fi, oldstate); - ctcm_ccw_check_rc(ch, rc, (char *)__FUNCTION__); + ctcm_ccw_check_rc(ch, rc, (char *)__func__); } } } @@ -703,7 +701,9 @@ static void ctcm_chx_cleanup(fsm_instance *fi, int state, struct net_device *dev = ch->netdev; struct ctcm_priv *priv = dev->priv; - CTCM_DBF_TEXT(TRACE, 3, __FUNCTION__); + CTCM_DBF_TEXT_(SETUP, CTC_DBF_NOTICE, + "%s(%s): %s[%d]\n", + CTCM_FUNTAIL, dev->name, ch->id, state); fsm_deltimer(&ch->timer); if (IS_MPC(ch)) @@ -743,7 +743,6 @@ static void ctcm_chx_cleanup(fsm_instance *fi, int state, */ static void ctcm_chx_stopped(fsm_instance *fi, int event, void *arg) { - CTCM_DBF_TEXT(TRACE, 3, __FUNCTION__); ctcm_chx_cleanup(fi, CTC_STATE_STOPPED, arg); } @@ -771,7 +770,6 @@ static void ctcm_chx_stop(fsm_instance *fi, int event, void *arg) */ static void ctcm_chx_fail(fsm_instance *fi, int event, void *arg) { - CTCM_DBF_TEXT(TRACE, 3, __FUNCTION__); ctcm_chx_cleanup(fi, CTC_STATE_NOTOP, arg); } @@ -809,8 +807,8 @@ static void ctcm_chx_setuperr(fsm_instance *fi, int event, void *arg) } CTCM_DBF_TEXT_(ERROR, CTC_DBF_CRIT, - "%s : %s error during %s channel setup state=%s\n", - dev->name, ctc_ch_event_names[event], + "%s(%s) : %s error during %s channel setup state=%s\n", + CTCM_FUNTAIL, dev->name, ctc_ch_event_names[event], (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX", fsm_getstate_str(fi)); @@ -838,10 +836,12 @@ static void ctcm_chx_restart(fsm_instance *fi, int event, void *arg) int oldstate; int rc; - CTCM_DBF_TEXT(TRACE, CTC_DBF_NOTICE, __FUNCTION__); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_NOTICE, + "%s: %s[%d] of %s\n", + CTCM_FUNTAIL, ch->id, event, dev->name); + fsm_deltimer(&ch->timer); - ctcm_pr_debug("%s: %s channel restart\n", dev->name, - (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX"); + fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch); oldstate = fsm_getstate(fi); fsm_newstate(fi, CTC_STATE_STARTWAIT); @@ -876,13 +876,10 @@ static void ctcm_chx_rxiniterr(fsm_instance *fi, int event, void *arg) struct net_device *dev = ch->netdev; struct ctcm_priv *priv = dev->priv; - CTCM_DBF_TEXT(SETUP, 3, __FUNCTION__); if (event == CTC_EVENT_TIMER) { if (!IS_MPCDEV(dev)) /* TODO : check if MPC deletes timer somewhere */ fsm_deltimer(&ch->timer); - ctcm_pr_debug("%s: Timeout during RX init handshake\n", - dev->name); if (ch->retry++ < 3) ctcm_chx_restart(fi, event, arg); else { @@ -907,9 +904,10 @@ static void ctcm_chx_rxinitfail(fsm_instance *fi, int event, void *arg) struct net_device *dev = ch->netdev; struct ctcm_priv *priv = dev->priv; - CTCM_DBF_TEXT(SETUP, 3, __FUNCTION__); + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%s): RX %s busy, init. fail", + CTCM_FUNTAIL, dev->name, ch->id); fsm_newstate(fi, CTC_STATE_RXERR); - ctcm_pr_warn("%s: RX busy. Initialization failed\n", dev->name); fsm_event(priv->fsm, DEV_EVENT_RXDOWN, dev); } @@ -927,11 +925,10 @@ static void ctcm_chx_rxdisc(fsm_instance *fi, int event, void *arg) struct net_device *dev = ch->netdev; struct ctcm_priv *priv = dev->priv; - CTCM_DBF_DEV_NAME(TRACE, dev, "Got remote disconnect, re-initializing"); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_NOTICE, + "%s: %s: remote disconnect - re-init ...", + CTCM_FUNTAIL, dev->name); fsm_deltimer(&ch->timer); - if (do_debug) - ctcm_pr_debug("%s: Got remote disconnect, " - "re-initializing ...\n", dev->name); /* * Notify device statemachine */ @@ -961,8 +958,6 @@ static void ctcm_chx_txiniterr(fsm_instance *fi, int event, void *arg) if (event == CTC_EVENT_TIMER) { fsm_deltimer(&ch->timer); - CTCM_DBF_DEV_NAME(ERROR, dev, - "Timeout during TX init handshake"); if (ch->retry++ < 3) ctcm_chx_restart(fi, event, arg); else { @@ -971,9 +966,8 @@ static void ctcm_chx_txiniterr(fsm_instance *fi, int event, void *arg) } } else { CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, - "%s : %s error during channel setup state=%s", - dev->name, ctc_ch_event_names[event], - fsm_getstate_str(fi)); + "%s(%s): %s in %s", CTCM_FUNTAIL, ch->id, + ctc_ch_event_names[event], fsm_getstate_str(fi)); ctcm_pr_warn("%s: Error during TX init handshake\n", dev->name); } @@ -993,15 +987,15 @@ static void ctcm_chx_txretry(fsm_instance *fi, int event, void *arg) struct ctcm_priv *priv = dev->priv; struct sk_buff *skb; - if (do_debug) - ctcm_pr_debug("ctcmpc enter: %s(): cp=%i ch=0x%p id=%s\n", - __FUNCTION__, smp_processor_id(), ch, ch->id); + CTCM_PR_DEBUG("Enter: %s: cp=%i ch=0x%p id=%s\n", + __func__, smp_processor_id(), ch, ch->id); fsm_deltimer(&ch->timer); if (ch->retry++ > 3) { struct mpc_group *gptr = priv->mpcg; - ctcm_pr_debug("%s: TX retry failed, restarting channel\n", - dev->name); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_INFO, + "%s: %s: retries exceeded", + CTCM_FUNTAIL, ch->id); fsm_event(priv->fsm, DEV_EVENT_TXDOWN, dev); /* call restart if not MPC or if MPC and mpcg fsm is ready. use gptr as mpc indicator */ @@ -1010,7 +1004,9 @@ static void ctcm_chx_txretry(fsm_instance *fi, int event, void *arg) goto done; } - ctcm_pr_debug("%s: TX retry %d\n", dev->name, ch->retry); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, + "%s : %s: retry %d", + CTCM_FUNTAIL, ch->id, ch->retry); skb = skb_peek(&ch->io_queue); if (skb) { int rc = 0; @@ -1018,8 +1014,9 @@ static void ctcm_chx_txretry(fsm_instance *fi, int event, void *arg) clear_normalized_cda(&ch->ccw[4]); ch->ccw[4].count = skb->len; if (set_normalized_cda(&ch->ccw[4], skb->data)) { - ctcm_pr_debug("%s: IDAL alloc failed, chan restart\n", - dev->name); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_INFO, + "%s: %s: IDAL alloc failed", + CTCM_FUNTAIL, ch->id); fsm_event(priv->fsm, DEV_EVENT_TXDOWN, dev); ctcm_chx_restart(fi, event, arg); goto done; @@ -1061,22 +1058,21 @@ static void ctcm_chx_iofatal(fsm_instance *fi, int event, void *arg) struct channel *ch = arg; struct net_device *dev = ch->netdev; struct ctcm_priv *priv = dev->priv; + int rd = CHANNEL_DIRECTION(ch->flags); - CTCM_DBF_TEXT(TRACE, 3, __FUNCTION__); fsm_deltimer(&ch->timer); - ctcm_pr_warn("%s %s : unrecoverable channel error\n", - CTC_DRIVER_NAME, dev->name); + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s: %s: %s unrecoverable channel error", + CTCM_FUNTAIL, ch->id, rd == READ ? "RX" : "TX"); + if (IS_MPC(ch)) { priv->stats.tx_dropped++; priv->stats.tx_errors++; } - - if (CHANNEL_DIRECTION(ch->flags) == READ) { - ctcm_pr_debug("%s: RX I/O error\n", dev->name); + if (rd == READ) { fsm_newstate(fi, CTC_STATE_RXERR); fsm_event(priv->fsm, DEV_EVENT_RXDOWN, dev); } else { - ctcm_pr_debug("%s: TX I/O error\n", dev->name); fsm_newstate(fi, CTC_STATE_TXERR); fsm_event(priv->fsm, DEV_EVENT_TXDOWN, dev); } @@ -1216,27 +1212,27 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg) struct sk_buff *skb; int first = 1; int i; - struct timespec done_stamp; __u32 data_space; unsigned long duration; struct sk_buff *peekskb; int rc; struct th_header *header; struct pdu *p_header; + struct timespec done_stamp = current_kernel_time(); /* xtime */ - if (do_debug) - ctcm_pr_debug("%s cp:%i enter: %s()\n", - dev->name, smp_processor_id(), __FUNCTION__); + CTCM_PR_DEBUG("Enter %s: %s cp:%i\n", + __func__, dev->name, smp_processor_id()); - done_stamp = current_kernel_time(); /* xtime */ - duration = (done_stamp.tv_sec - ch->prof.send_stamp.tv_sec) * 1000000 - + (done_stamp.tv_nsec - ch->prof.send_stamp.tv_nsec) / 1000; + duration = + (done_stamp.tv_sec - ch->prof.send_stamp.tv_sec) * 1000000 + + (done_stamp.tv_nsec - ch->prof.send_stamp.tv_nsec) / 1000; if (duration > ch->prof.tx_time) ch->prof.tx_time = duration; if (ch->irb->scsw.cmd.count != 0) - ctcm_pr_debug("%s: TX not complete, remaining %d bytes\n", - dev->name, ch->irb->scsw.cmd.count); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_DEBUG, + "%s(%s): TX not complete, remaining %d bytes", + CTCM_FUNTAIL, dev->name, ch->irb->scsw.cmd.count); fsm_deltimer(&ch->timer); while ((skb = skb_dequeue(&ch->io_queue))) { priv->stats.tx_packets++; @@ -1250,7 +1246,6 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg) } spin_lock(&ch->collect_lock); clear_normalized_cda(&ch->ccw[4]); - if ((ch->collect_len <= 0) || (grp->in_sweep != 0)) { spin_unlock(&ch->collect_lock); fsm_newstate(fi, CTC_STATE_TXIDLE); @@ -1269,17 +1264,13 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg) if (ch->prof.maxcqueue < skb_queue_len(&ch->collect_queue)) ch->prof.maxcqueue = skb_queue_len(&ch->collect_queue); i = 0; - - if (do_debug_data) - ctcm_pr_debug("ctcmpc: %s() building " - "trans_skb from collect_q \n", __FUNCTION__); - + p_header = NULL; data_space = grp->group_max_buflen - TH_HEADER_LENGTH; - if (do_debug_data) - ctcm_pr_debug("ctcmpc: %s() building trans_skb from collect_q" - " data_space:%04x\n", __FUNCTION__, data_space); - p_header = NULL; + CTCM_PR_DBGDATA("%s: building trans_skb from collect_q" + " data_space:%04x\n", + __func__, data_space); + while ((skb = skb_dequeue(&ch->collect_queue))) { memcpy(skb_put(ch->trans_skb, skb->len), skb->data, skb->len); p_header = (struct pdu *) @@ -1290,15 +1281,12 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg) else p_header->pdu_flag |= 0x20; - if (do_debug_data) { - ctcm_pr_debug("ctcmpc: %s()trans_skb len:%04x \n", - __FUNCTION__, ch->trans_skb->len); - ctcm_pr_debug("ctcmpc: %s() pdu header and data" - " for up to 32 bytes sent to vtam\n", - __FUNCTION__); - ctcmpc_dumpit((char *)p_header, - min_t(int, skb->len, 32)); - } + CTCM_PR_DBGDATA("%s: trans_skb len:%04x \n", + __func__, ch->trans_skb->len); + CTCM_PR_DBGDATA("%s: pdu header and data for up" + " to 32 bytes sent to vtam\n", __func__); + CTCM_D3_DUMP((char *)p_header, min_t(int, skb->len, 32)); + ch->collect_len -= skb->len; data_space -= skb->len; priv->stats.tx_packets++; @@ -1314,46 +1302,38 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg) if (p_header) p_header->pdu_flag |= PDU_LAST; /*Say it's the last one*/ header = kzalloc(TH_HEADER_LENGTH, gfp_type()); - if (!header) { - printk(KERN_WARNING "ctcmpc: OUT OF MEMORY IN %s()" - ": Data Lost \n", __FUNCTION__); spin_unlock(&ch->collect_lock); fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); - goto done; + goto done; } - header->th_ch_flag = TH_HAS_PDU; /* Normal data */ ch->th_seq_num++; header->th_seq_num = ch->th_seq_num; - if (do_debug_data) - ctcm_pr_debug("%s: ToVTAM_th_seq= %08x\n" , - __FUNCTION__, ch->th_seq_num); + CTCM_PR_DBGDATA("%s: ToVTAM_th_seq= %08x\n" , + __func__, ch->th_seq_num); memcpy(skb_push(ch->trans_skb, TH_HEADER_LENGTH), header, TH_HEADER_LENGTH); /* put the TH on the packet */ kfree(header); - if (do_debug_data) { - ctcm_pr_debug("ctcmpc: %s()trans_skb len:%04x \n", - __FUNCTION__, ch->trans_skb->len); - - ctcm_pr_debug("ctcmpc: %s() up-to-50 bytes of trans_skb " - "data to vtam from collect_q\n", __FUNCTION__); - ctcmpc_dumpit((char *)ch->trans_skb->data, + CTCM_PR_DBGDATA("%s: trans_skb len:%04x \n", + __func__, ch->trans_skb->len); + CTCM_PR_DBGDATA("%s: up-to-50 bytes of trans_skb " + "data to vtam from collect_q\n", __func__); + CTCM_D3_DUMP((char *)ch->trans_skb->data, min_t(int, ch->trans_skb->len, 50)); - } spin_unlock(&ch->collect_lock); clear_normalized_cda(&ch->ccw[1]); if (set_normalized_cda(&ch->ccw[1], ch->trans_skb->data)) { dev_kfree_skb_any(ch->trans_skb); ch->trans_skb = NULL; - printk(KERN_WARNING - "ctcmpc: %s()CCW failure - data lost\n", - __FUNCTION__); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_ERROR, + "%s: %s: IDAL alloc failed", + CTCM_FUNTAIL, ch->id); fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); return; } @@ -1373,7 +1353,6 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg) } done: ctcm_clear_busy(dev); - ctcm_pr_debug("ctcmpc exit: %s %s()\n", dev->name, __FUNCTION__); return; } @@ -1393,26 +1372,25 @@ static void ctcmpc_chx_rx(fsm_instance *fi, int event, void *arg) struct mpc_group *grp = priv->mpcg; struct sk_buff *skb = ch->trans_skb; struct sk_buff *new_skb; - unsigned long saveflags = 0; /* avoids compiler warning */ + unsigned long saveflags = 0; /* avoids compiler warning */ int len = ch->max_bufsize - ch->irb->scsw.cmd.count; - if (do_debug_data) { - CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, "mpc_ch_rx %s cp:%i %s\n", - dev->name, smp_processor_id(), ch->id); - CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, "mpc_ch_rx: maxbuf: %04x " - "len: %04x\n", ch->max_bufsize, len); - } + CTCM_PR_DEBUG("%s: %s: cp:%i %s maxbuf : %04x, len: %04x\n", + CTCM_FUNTAIL, dev->name, smp_processor_id(), + ch->id, ch->max_bufsize, len); fsm_deltimer(&ch->timer); if (skb == NULL) { - ctcm_pr_debug("ctcmpc exit: %s() TRANS_SKB = NULL \n", - __FUNCTION__); - goto again; + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): TRANS_SKB = NULL", + CTCM_FUNTAIL, dev->name); + goto again; } if (len < TH_HEADER_LENGTH) { - ctcm_pr_info("%s: got packet with invalid length %d\n", - dev->name, len); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): packet length %d to short", + CTCM_FUNTAIL, dev->name, len); priv->stats.rx_dropped++; priv->stats.rx_length_errors++; } else { @@ -1422,11 +1400,9 @@ static void ctcmpc_chx_rx(fsm_instance *fi, int event, void *arg) new_skb = __dev_alloc_skb(ch->max_bufsize, GFP_ATOMIC); if (new_skb == NULL) { - printk(KERN_INFO "ctcmpc:%s() NEW_SKB = NULL\n", - __FUNCTION__); - printk(KERN_WARNING "ctcmpc: %s() MEMORY ALLOC FAILED" - " - DATA LOST - MPC FAILED\n", - __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%d): skb allocation failed", + CTCM_FUNTAIL, dev->name); fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); goto again; } @@ -1479,9 +1455,8 @@ again: break; } - if (do_debug) - ctcm_pr_debug("ctcmpc exit : %s %s(): ch=0x%p id=%s\n", - dev->name, __FUNCTION__, ch, ch->id); + CTCM_PR_DEBUG("Exit %s: %s, ch=0x%p, id=%s\n", + __func__, dev->name, ch, ch->id); } @@ -1497,15 +1472,16 @@ static void ctcmpc_chx_firstio(fsm_instance *fi, int event, void *arg) struct channel *ch = arg; struct net_device *dev = ch->netdev; struct ctcm_priv *priv = dev->priv; + struct mpc_group *gptr = priv->mpcg; + + CTCM_PR_DEBUG("Enter %s: id=%s, ch=0x%p\n", + __func__, ch->id, ch); + + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_INFO, + "%s: %s: chstate:%i, grpstate:%i, prot:%i\n", + CTCM_FUNTAIL, ch->id, fsm_getstate(fi), + fsm_getstate(gptr->fsm), ch->protocol); - if (do_debug) { - struct mpc_group *gptr = priv->mpcg; - ctcm_pr_debug("ctcmpc enter: %s(): ch=0x%p id=%s\n", - __FUNCTION__, ch, ch->id); - ctcm_pr_debug("%s() %s chstate:%i grpstate:%i chprotocol:%i\n", - __FUNCTION__, ch->id, fsm_getstate(fi), - fsm_getstate(gptr->fsm), ch->protocol); - } if (fsm_getstate(fi) == CTC_STATE_TXIDLE) MPC_DBF_DEV_NAME(TRACE, dev, "remote side issued READ? "); @@ -1531,9 +1507,8 @@ static void ctcmpc_chx_firstio(fsm_instance *fi, int event, void *arg) ? CTC_STATE_RXINIT : CTC_STATE_TXINIT); done: - if (do_debug) - ctcm_pr_debug("ctcmpc exit : %s(): ch=0x%p id=%s\n", - __FUNCTION__, ch, ch->id); + CTCM_PR_DEBUG("Exit %s: id=%s, ch=0x%p\n", + __func__, ch->id, ch); return; } @@ -1556,12 +1531,9 @@ void ctcmpc_chx_rxidle(fsm_instance *fi, int event, void *arg) unsigned long saveflags = 0; /* avoids compiler warning */ fsm_deltimer(&ch->timer); - ctcm_pr_debug("%s cp:%i enter: %s()\n", - dev->name, smp_processor_id(), __FUNCTION__); - if (do_debug) - ctcm_pr_debug("%s() %s chstate:%i grpstate:%i\n", - __FUNCTION__, ch->id, - fsm_getstate(fi), fsm_getstate(grp->fsm)); + CTCM_PR_DEBUG("%s: %s: %s: cp:%i, chstate:%i grpstate:%i\n", + __func__, ch->id, dev->name, smp_processor_id(), + fsm_getstate(fi), fsm_getstate(grp->fsm)); fsm_newstate(fi, CTC_STATE_RXIDLE); /* XID processing complete */ @@ -1575,9 +1547,7 @@ void ctcmpc_chx_rxidle(fsm_instance *fi, int event, void *arg) skb_reset_tail_pointer(ch->trans_skb); ch->trans_skb->len = 0; ch->ccw[1].count = ch->max_bufsize; - if (do_debug_ccw) - ctcmpc_dumpit((char *)&ch->ccw[0], - sizeof(struct ccw1) * 3); + CTCM_CCW_DUMP((char *)&ch->ccw[0], sizeof(struct ccw1) * 3); if (event == CTC_EVENT_START) /* see remark about conditional locking */ spin_lock_irqsave(get_ccwdev_lock(ch->cdev), saveflags); @@ -1598,9 +1568,6 @@ void ctcmpc_chx_rxidle(fsm_instance *fi, int event, void *arg) fsm_event(priv->fsm, DEV_EVENT_RXUP, dev); done: - if (do_debug) - ctcm_pr_debug("ctcmpc exit: %s %s()\n", - dev->name, __FUNCTION__); return; } @@ -1616,13 +1583,9 @@ static void ctcmpc_chx_attn(fsm_instance *fsm, int event, void *arg) struct ctcm_priv *priv = dev->priv; struct mpc_group *grp = priv->mpcg; - if (do_debug) { - ctcm_pr_debug("ctcmpc enter: %s(): cp=%i ch=0x%p id=%s" - "GrpState:%s ChState:%s\n", - __FUNCTION__, smp_processor_id(), ch, ch->id, - fsm_getstate_str(grp->fsm), - fsm_getstate_str(ch->fsm)); - } + CTCM_PR_DEBUG("%s(%s): %s(ch=0x%p), cp=%i, ChStat:%s, GrpStat:%s\n", + __func__, dev->name, ch->id, ch, smp_processor_id(), + fsm_getstate_str(ch->fsm), fsm_getstate_str(grp->fsm)); switch (fsm_getstate(grp->fsm)) { case MPCG_STATE_XID2INITW: @@ -1664,11 +1627,7 @@ static void ctcmpc_chx_attn(fsm_instance *fsm, int event, void *arg) break; } - if (do_debug) - ctcm_pr_debug("ctcmpc exit : %s(): cp=%i ch=0x%p id=%s\n", - __FUNCTION__, smp_processor_id(), ch, ch->id); return; - } /* @@ -1683,11 +1642,9 @@ static void ctcmpc_chx_attnbusy(fsm_instance *fsm, int event, void *arg) struct ctcm_priv *priv = dev->priv; struct mpc_group *grp = priv->mpcg; - ctcm_pr_debug("ctcmpc enter: %s %s() %s \nGrpState:%s ChState:%s\n", - dev->name, - __FUNCTION__, ch->id, - fsm_getstate_str(grp->fsm), - fsm_getstate_str(ch->fsm)); + CTCM_PR_DEBUG("%s(%s): %s\n ChState:%s GrpState:%s\n", + __func__, dev->name, ch->id, + fsm_getstate_str(ch->fsm), fsm_getstate_str(grp->fsm)); fsm_deltimer(&ch->timer); @@ -1750,16 +1707,12 @@ static void ctcmpc_chx_attnbusy(fsm_instance *fsm, int event, void *arg) if (ch->in_mpcgroup) fsm_event(grp->fsm, MPCG_EVENT_XID0DO, ch); else - printk(KERN_WARNING "ctcmpc: %s() Not all channels have" - " been added to group\n", __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): channel %s not added to group", + CTCM_FUNTAIL, dev->name, ch->id); done: - if (do_debug) - ctcm_pr_debug("ctcmpc exit : %s()%s ch=0x%p id=%s\n", - __FUNCTION__, dev->name, ch, ch->id); - return; - } /* @@ -1774,13 +1727,7 @@ static void ctcmpc_chx_resend(fsm_instance *fsm, int event, void *arg) struct ctcm_priv *priv = dev->priv; struct mpc_group *grp = priv->mpcg; - ctcm_pr_debug("ctcmpc enter: %s %s() %s \nGrpState:%s ChState:%s\n", - dev->name, __FUNCTION__, ch->id, - fsm_getstate_str(grp->fsm), - fsm_getstate_str(ch->fsm)); - fsm_event(grp->fsm, MPCG_EVENT_XID0DO, ch); - return; } @@ -1802,19 +1749,16 @@ static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg) int rc = 0; unsigned long saveflags = 0; - if (do_debug) - ctcm_pr_debug("ctcmpc enter: %s(): cp=%i ch=0x%p id=%s\n", - __FUNCTION__, smp_processor_id(), ach, ach->id); + CTCM_PR_DEBUG("ctcmpc enter: %s(): cp=%i ch=0x%p id=%s\n", + __func__, smp_processor_id(), ach, ach->id); if (grp->in_sweep == 0) goto done; - if (do_debug_data) { - ctcm_pr_debug("ctcmpc: %s() 1: ToVTAM_th_seq= %08x\n" , - __FUNCTION__, wch->th_seq_num); - ctcm_pr_debug("ctcmpc: %s() 1: FromVTAM_th_seq= %08x\n" , - __FUNCTION__, rch->th_seq_num); - } + CTCM_PR_DBGDATA("%s: 1: ToVTAM_th_seq= %08x\n" , + __func__, wch->th_seq_num); + CTCM_PR_DBGDATA("%s: 1: FromVTAM_th_seq= %08x\n" , + __func__, rch->th_seq_num); if (fsm_getstate(wch->fsm) != CTC_STATE_TXIDLE) { /* give the previous IO time to complete */ @@ -1853,11 +1797,9 @@ static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg) header->sw.th_last_seq = wch->th_seq_num; - if (do_debug_ccw) - ctcmpc_dumpit((char *)&wch->ccw[3], sizeof(struct ccw1) * 3); - - ctcm_pr_debug("ctcmpc: %s() sweep packet\n", __FUNCTION__); - ctcmpc_dumpit((char *)header, TH_SWEEP_LENGTH); + CTCM_CCW_DUMP((char *)&wch->ccw[3], sizeof(struct ccw1) * 3); + CTCM_PR_DBGDATA("%s: sweep packet\n", __func__); + CTCM_D3_DUMP((char *)header, TH_SWEEP_LENGTH); fsm_addtimer(&wch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, wch); fsm_newstate(wch->fsm, CTC_STATE_TX); @@ -1876,19 +1818,13 @@ static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg) ctcm_clear_busy_do(dev); } - if (do_debug_data) { - ctcm_pr_debug("ctcmpc: %s()2: ToVTAM_th_seq= %08x\n" , - __FUNCTION__, wch->th_seq_num); - ctcm_pr_debug("ctcmpc: %s()2: FromVTAM_th_seq= %08x\n" , - __FUNCTION__, rch->th_seq_num); - } + CTCM_PR_DBGDATA("%s: To-/From-VTAM_th_seq = %08x/%08x\n" , + __func__, wch->th_seq_num, rch->th_seq_num); if (rc != 0) ctcm_ccw_check_rc(wch, rc, "send sweep"); done: - if (do_debug) - ctcm_pr_debug("ctcmpc exit: %s() %s\n", __FUNCTION__, ach->id); return; } @@ -2149,9 +2085,8 @@ static void dev_action_stop(fsm_instance *fi, int event, void *arg) struct channel *ch = priv->channel[direction]; fsm_event(ch->fsm, CTC_EVENT_STOP, ch); ch->th_seq_num = 0x00; - if (do_debug) - ctcm_pr_debug("ctcm: %s() CH_th_seq= %08x\n", - __FUNCTION__, ch->th_seq_num); + CTCM_PR_DEBUG("%s: CH_th_seq= %08x\n", + __func__, ch->th_seq_num); } if (IS_MPC(priv)) fsm_newstate(priv->mpcg->fsm, MPCG_STATE_RESET); @@ -2199,8 +2134,11 @@ static void dev_action_chup(fsm_instance *fi, int event, void *arg) { struct net_device *dev = arg; struct ctcm_priv *priv = dev->priv; + int dev_stat = fsm_getstate(fi); - CTCMY_DBF_DEV_NAME(SETUP, dev, ""); + CTCM_DBF_TEXT_(SETUP, CTC_DBF_NOTICE, + "%s(%s): priv = %p [%d,%d]\n ", CTCM_FUNTAIL, + dev->name, dev->priv, dev_stat, event); switch (fsm_getstate(fi)) { case DEV_STATE_STARTWAIT_RXTX: diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index 6b13c1c..126a3eb 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -84,20 +84,19 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb) skb_pull(pskb, LL_HEADER_LENGTH); if ((ch->protocol == CTCM_PROTO_S390) && (header->type != ETH_P_IP)) { - if (!(ch->logflags & LOG_FLAG_ILLEGALPKT)) { + ch->logflags |= LOG_FLAG_ILLEGALPKT; /* * Check packet type only if we stick strictly * to S/390's protocol of OS390. This only * supports IP. Otherwise allow any packet * type. */ - ctcm_pr_warn("%s Illegal packet type 0x%04x " - "received, dropping\n", - dev->name, header->type); - ch->logflags |= LOG_FLAG_ILLEGALPKT; + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%s): Illegal packet type 0x%04x" + " - dropping", + CTCM_FUNTAIL, dev->name, header->type); } - priv->stats.rx_dropped++; priv->stats.rx_frame_errors++; return; @@ -105,11 +104,11 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb) pskb->protocol = ntohs(header->type); if (header->length <= LL_HEADER_LENGTH) { if (!(ch->logflags & LOG_FLAG_ILLEGALSIZE)) { - ctcm_pr_warn( - "%s Illegal packet size %d " - "received (MTU=%d blocklen=%d), " - "dropping\n", dev->name, header->length, - dev->mtu, len); + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%s): Illegal packet size %d(%d,%d)" + "- dropping", + CTCM_FUNTAIL, dev->name, + header->length, dev->mtu, len); ch->logflags |= LOG_FLAG_ILLEGALSIZE; } @@ -122,10 +121,10 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb) if ((header->length > skb_tailroom(pskb)) || (header->length > len)) { if (!(ch->logflags & LOG_FLAG_OVERRUN)) { - ctcm_pr_warn( - "%s Illegal packet size %d (beyond the" - " end of received data), dropping\n", - dev->name, header->length); + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%s): Packet size %d (overrun)" + " - dropping", CTCM_FUNTAIL, + dev->name, header->length); ch->logflags |= LOG_FLAG_OVERRUN; } @@ -139,9 +138,9 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb) skb = dev_alloc_skb(pskb->len); if (!skb) { if (!(ch->logflags & LOG_FLAG_NOMEM)) { - ctcm_pr_warn( - "%s Out of memory in ctcm_unpack_skb\n", - dev->name); + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%s): MEMORY allocation error", + CTCM_FUNTAIL, dev->name); ch->logflags |= LOG_FLAG_NOMEM; } priv->stats.rx_dropped++; @@ -184,7 +183,7 @@ void ctcm_unpack_skb(struct channel *ch, struct sk_buff *pskb) */ static void channel_free(struct channel *ch) { - CTCM_DBF_TEXT(TRACE, 2, __FUNCTION__); + CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, "%s(%s)", CTCM_FUNTAIL, ch->id); ch->flags &= ~CHANNEL_FLAGS_INUSE; fsm_newstate(ch->fsm, CTC_STATE_IDLE); } @@ -251,19 +250,12 @@ static struct channel *channel_get(enum channel_types type, { struct channel *ch = channels; - if (do_debug) { - char buf[64]; - sprintf(buf, "%s(%d, %s, %d)\n", - CTCM_FUNTAIL, type, id, direction); - CTCM_DBF_TEXT(TRACE, CTC_DBF_INFO, buf); - } while (ch && (strncmp(ch->id, id, CTCM_ID_SIZE) || (ch->type != type))) ch = ch->next; if (!ch) { - char buf[64]; - sprintf(buf, "%s(%d, %s, %d) not found in channel list\n", + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%d, %s, %d) not found in channel list\n", CTCM_FUNTAIL, type, id, direction); - CTCM_DBF_TEXT(ERROR, CTC_DBF_ERROR, buf); } else { if (ch->flags & CHANNEL_FLAGS_INUSE) ch = NULL; @@ -283,8 +275,9 @@ static long ctcm_check_irb_error(struct ccw_device *cdev, struct irb *irb) if (!IS_ERR(irb)) return 0; - CTCM_DBF_TEXT_(ERROR, CTC_DBF_WARN, "irb error %ld on device %s\n", - PTR_ERR(irb), cdev->dev.bus_id); + CTCM_DBF_TEXT_(ERROR, CTC_DBF_WARN, + "irb error %ld on device %s\n", + PTR_ERR(irb), cdev->dev.bus_id); switch (PTR_ERR(irb)) { case -EIO: @@ -307,58 +300,85 @@ static long ctcm_check_irb_error(struct ccw_device *cdev, struct irb *irb) * ch The channel, the sense code belongs to. * sense The sense code to inspect. */ -static inline void ccw_unit_check(struct channel *ch, unsigned char sense) +static inline void ccw_unit_check(struct channel *ch, __u8 sense) { - CTCM_DBF_TEXT(TRACE, 5, __FUNCTION__); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, + "%s(%s): %02x", + CTCM_FUNTAIL, ch->id, sense); + if (sense & SNS0_INTERVENTION_REQ) { if (sense & 0x01) { - ctcm_pr_debug("%s: Interface disc. or Sel. reset " - "(remote)\n", ch->id); + if (ch->sense_rc != 0x01) { + ctcm_pr_debug("%s: Interface disc. or Sel. " + "reset (remote)\n", ch->id); + ch->sense_rc = 0x01; + } fsm_event(ch->fsm, CTC_EVENT_UC_RCRESET, ch); } else { - ctcm_pr_debug("%s: System reset (remote)\n", ch->id); + if (ch->sense_rc != SNS0_INTERVENTION_REQ) { + ctcm_pr_debug("%s: System reset (remote)\n", + ch->id); + ch->sense_rc = SNS0_INTERVENTION_REQ; + } fsm_event(ch->fsm, CTC_EVENT_UC_RSRESET, ch); } } else if (sense & SNS0_EQUIPMENT_CHECK) { if (sense & SNS0_BUS_OUT_CHECK) { - ctcm_pr_warn("%s: Hardware malfunction (remote)\n", - ch->id); + if (ch->sense_rc != SNS0_BUS_OUT_CHECK) { + CTCM_DBF_TEXT_(TRACE, CTC_DBF_WARN, + "%s(%s): remote HW error %02x", + CTCM_FUNTAIL, ch->id, sense); + ch->sense_rc = SNS0_BUS_OUT_CHECK; + } fsm_event(ch->fsm, CTC_EVENT_UC_HWFAIL, ch); } else { - ctcm_pr_warn("%s: Read-data parity error (remote)\n", - ch->id); + if (ch->sense_rc != SNS0_EQUIPMENT_CHECK) { + CTCM_DBF_TEXT_(TRACE, CTC_DBF_WARN, + "%s(%s): remote read parity error %02x", + CTCM_FUNTAIL, ch->id, sense); + ch->sense_rc = SNS0_EQUIPMENT_CHECK; + } fsm_event(ch->fsm, CTC_EVENT_UC_RXPARITY, ch); } } else if (sense & SNS0_BUS_OUT_CHECK) { - if (sense & 0x04) { - ctcm_pr_warn("%s: Data-streaming timeout)\n", ch->id); + if (ch->sense_rc != SNS0_BUS_OUT_CHECK) { + CTCM_DBF_TEXT_(TRACE, CTC_DBF_WARN, + "%s(%s): BUS OUT error %02x", + CTCM_FUNTAIL, ch->id, sense); + ch->sense_rc = SNS0_BUS_OUT_CHECK; + } + if (sense & 0x04) /* data-streaming timeout */ fsm_event(ch->fsm, CTC_EVENT_UC_TXTIMEOUT, ch); - } else { - ctcm_pr_warn("%s: Data-transfer parity error\n", - ch->id); + else /* Data-transfer parity error */ fsm_event(ch->fsm, CTC_EVENT_UC_TXPARITY, ch); - } } else if (sense & SNS0_CMD_REJECT) { - ctcm_pr_warn("%s: Command reject\n", ch->id); + if (ch->sense_rc != SNS0_CMD_REJECT) { + CTCM_DBF_TEXT_(TRACE, CTC_DBF_WARN, + "%s(%s): Command rejected", + CTCM_FUNTAIL, ch->id); + ch->sense_rc = SNS0_CMD_REJECT; + } } else if (sense == 0) { - ctcm_pr_debug("%s: Unit check ZERO\n", ch->id); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_WARN, + "%s(%s): Unit check ZERO", + CTCM_FUNTAIL, ch->id); fsm_event(ch->fsm, CTC_EVENT_UC_ZERO, ch); } else { - ctcm_pr_warn("%s: Unit Check with sense code: %02x\n", - ch->id, sense); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_WARN, + "%s(%s): Unit check code %02x unknown", + CTCM_FUNTAIL, ch->id, sense); fsm_event(ch->fsm, CTC_EVENT_UC_UNKNOWN, ch); } } int ctcm_ch_alloc_buffer(struct channel *ch) { - CTCM_DBF_TEXT(TRACE, 5, __FUNCTION__); - clear_normalized_cda(&ch->ccw[1]); ch->trans_skb = __dev_alloc_skb(ch->max_bufsize, GFP_ATOMIC | GFP_DMA); if (ch->trans_skb == NULL) { - ctcm_pr_warn("%s: Couldn't alloc %s trans_skb\n", - ch->id, + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%s): %s trans_skb allocation error", + CTCM_FUNTAIL, ch->id, (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX"); return -ENOMEM; } @@ -367,9 +387,9 @@ int ctcm_ch_alloc_buffer(struct channel *ch) if (set_normalized_cda(&ch->ccw[1], ch->trans_skb->data)) { dev_kfree_skb(ch->trans_skb); ch->trans_skb = NULL; - ctcm_pr_warn("%s: set_normalized_cda for %s " - "trans_skb failed, dropping packets\n", - ch->id, + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%s): %s set norm_cda failed", + CTCM_FUNTAIL, ch->id, (CHANNEL_DIRECTION(ch->flags) == READ) ? "RX" : "TX"); return -ENOMEM; } @@ -516,7 +536,7 @@ static int ctcm_transmit_skb(struct channel *ch, struct sk_buff *skb) atomic_dec(&skb->users); skb_pull(skb, LL_HEADER_LENGTH + 2); ctcm_clear_busy(ch->netdev); - return -EBUSY; + return -ENOMEM; } skb_reset_tail_pointer(ch->trans_skb); @@ -570,15 +590,12 @@ static void ctcmpc_send_sweep_req(struct channel *rch) struct th_sweep *header; struct sk_buff *sweep_skb; struct channel *ch; - int rc = 0; + /* int rc = 0; */ priv = dev->priv; grp = priv->mpcg; ch = priv->channel[WRITE]; - if (do_debug) - MPC_DBF_DEV_NAME(TRACE, dev, ch->id); - /* sweep processing is not complete until response and request */ /* has completed for all read channels in group */ if (grp->in_sweep == 0) { @@ -590,17 +607,16 @@ static void ctcmpc_send_sweep_req(struct channel *rch) sweep_skb = __dev_alloc_skb(MPC_BUFSIZE_DEFAULT, GFP_ATOMIC|GFP_DMA); if (sweep_skb == NULL) { - printk(KERN_INFO "Couldn't alloc sweep_skb\n"); - rc = -ENOMEM; - goto done; + /* rc = -ENOMEM; */ + goto nomem; } header = kmalloc(TH_SWEEP_LENGTH, gfp_type()); if (!header) { dev_kfree_skb_any(sweep_skb); - rc = -ENOMEM; - goto done; + /* rc = -ENOMEM; */ + goto nomem; } header->th.th_seg = 0x00 ; @@ -621,12 +637,10 @@ static void ctcmpc_send_sweep_req(struct channel *rch) return; -done: - if (rc != 0) { - grp->in_sweep = 0; - ctcm_clear_busy(dev); - fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); - } +nomem: + grp->in_sweep = 0; + ctcm_clear_busy(dev); + fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); return; } @@ -648,11 +662,9 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) unsigned long saveflags = 0; /* avoids compiler warning */ __u16 block_len; - if (do_debug) - ctcm_pr_debug( - "ctcm enter: %s(): %s cp=%i ch=0x%p id=%s state=%s\n", - __FUNCTION__, dev->name, smp_processor_id(), ch, - ch->id, fsm_getstate_str(ch->fsm)); + CTCM_PR_DEBUG("Enter %s: %s, cp=%i ch=0x%p id=%s state=%s\n", + __func__, dev->name, smp_processor_id(), ch, + ch->id, fsm_getstate_str(ch->fsm)); if ((fsm_getstate(ch->fsm) != CTC_STATE_TXIDLE) || grp->in_sweep) { spin_lock_irqsave(&ch->collect_lock, saveflags); @@ -660,14 +672,8 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) p_header = kmalloc(PDU_HEADER_LENGTH, gfp_type()); if (!p_header) { - printk(KERN_WARNING "ctcm: OUT OF MEMORY IN %s():" - " Data Lost \n", __FUNCTION__); - - atomic_dec(&skb->users); - dev_kfree_skb_any(skb); spin_unlock_irqrestore(&ch->collect_lock, saveflags); - fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); - goto done; + goto nomem_exit; } p_header->pdu_offset = skb->len; @@ -682,13 +688,10 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) memcpy(skb_push(skb, PDU_HEADER_LENGTH), p_header, PDU_HEADER_LENGTH); - if (do_debug_data) { - ctcm_pr_debug("ctcm: %s() Putting on collect_q" - " - skb len: %04x \n", __FUNCTION__, skb->len); - ctcm_pr_debug("ctcm: %s() pdu header and data" - " for up to 32 bytes\n", __FUNCTION__); - ctcmpc_dump32((char *)skb->data, skb->len); - } + CTCM_PR_DEBUG("%s(%s): Put on collect_q - skb len: %04x \n" + "pdu header and data for up to 32 bytes:\n", + __func__, dev->name, skb->len); + CTCM_D3_DUMP((char *)skb->data, min_t(int, 32, skb->len)); skb_queue_tail(&ch->collect_queue, skb); ch->collect_len += skb->len; @@ -713,12 +716,7 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) if (hi) { nskb = __dev_alloc_skb(skb->len, GFP_ATOMIC | GFP_DMA); if (!nskb) { - printk(KERN_WARNING "ctcm: %s() OUT OF MEMORY" - "- Data Lost \n", __FUNCTION__); - atomic_dec(&skb->users); - dev_kfree_skb_any(skb); - fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); - goto done; + goto nomem_exit; } else { memcpy(skb_put(nskb, skb->len), skb->data, skb->len); atomic_inc(&nskb->users); @@ -730,15 +728,8 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) p_header = kmalloc(PDU_HEADER_LENGTH, gfp_type()); - if (!p_header) { - printk(KERN_WARNING "ctcm: %s() OUT OF MEMORY" - ": Data Lost \n", __FUNCTION__); - - atomic_dec(&skb->users); - dev_kfree_skb_any(skb); - fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); - goto done; - } + if (!p_header) + goto nomem_exit; p_header->pdu_offset = skb->len; p_header->pdu_proto = 0x01; @@ -768,15 +759,8 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) ch->prof.txlen += skb->len - PDU_HEADER_LENGTH; header = kmalloc(TH_HEADER_LENGTH, gfp_type()); - - if (!header) { - printk(KERN_WARNING "ctcm: %s() OUT OF MEMORY: Data Lost \n", - __FUNCTION__); - atomic_dec(&skb->users); - dev_kfree_skb_any(skb); - fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); - goto done; - } + if (!header) + goto nomem_exit; header->th_seg = 0x00; header->th_ch_flag = TH_HAS_PDU; /* Normal data */ @@ -785,41 +769,31 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) ch->th_seq_num++; header->th_seq_num = ch->th_seq_num; - if (do_debug_data) - ctcm_pr_debug("ctcm: %s() ToVTAM_th_seq= %08x\n" , - __FUNCTION__, ch->th_seq_num); + CTCM_PR_DBGDATA("%s(%s) ToVTAM_th_seq= %08x\n" , + __func__, dev->name, ch->th_seq_num); /* put the TH on the packet */ memcpy(skb_push(skb, TH_HEADER_LENGTH), header, TH_HEADER_LENGTH); kfree(header); - if (do_debug_data) { - ctcm_pr_debug("ctcm: %s(): skb len: %04x \n", - __FUNCTION__, skb->len); - ctcm_pr_debug("ctcm: %s(): pdu header and data for up to 32 " - "bytes sent to vtam\n", __FUNCTION__); - ctcmpc_dump32((char *)skb->data, skb->len); - } + CTCM_PR_DBGDATA("%s(%s): skb len: %04x\n - pdu header and data for " + "up to 32 bytes sent to vtam:\n", + __func__, dev->name, skb->len); + CTCM_D3_DUMP((char *)skb->data, min_t(int, 32, skb->len)); ch->ccw[4].count = skb->len; if (set_normalized_cda(&ch->ccw[4], skb->data)) { /* - * idal allocation failed, try via copying to - * trans_skb. trans_skb usually has a pre-allocated - * idal. + * idal allocation failed, try via copying to trans_skb. + * trans_skb usually has a pre-allocated idal. */ if (ctcm_checkalloc_buffer(ch)) { /* - * Remove our header. It gets added - * again on retransmit. + * Remove our header. + * It gets added again on retransmit. */ - atomic_dec(&skb->users); - dev_kfree_skb_any(skb); - printk(KERN_WARNING "ctcm: %s()OUT OF MEMORY:" - " Data Lost \n", __FUNCTION__); - fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); - goto done; + goto nomem_exit; } skb_reset_tail_pointer(ch->trans_skb); @@ -829,14 +803,11 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) atomic_dec(&skb->users); dev_kfree_skb_irq(skb); ccw_idx = 0; - if (do_debug_data) { - ctcm_pr_debug("ctcm: %s() TRANS skb len: %d \n", - __FUNCTION__, ch->trans_skb->len); - ctcm_pr_debug("ctcm: %s up to 32 bytes of data" - " sent to vtam\n", __FUNCTION__); - ctcmpc_dump32((char *)ch->trans_skb->data, - ch->trans_skb->len); - } + CTCM_PR_DBGDATA("%s(%s): trans_skb len: %04x\n" + "up to 32 bytes sent to vtam:\n", + __func__, dev->name, ch->trans_skb->len); + CTCM_D3_DUMP((char *)ch->trans_skb->data, + min_t(int, 32, ch->trans_skb->len)); } else { skb_queue_tail(&ch->io_queue, skb); ccw_idx = 3; @@ -865,13 +836,21 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) priv->stats.tx_packets++; priv->stats.tx_bytes += skb->len - TH_HEADER_LENGTH; } - if (ch->th_seq_num > 0xf0000000) /* Chose 4Billion at random. */ + if (ch->th_seq_num > 0xf0000000) /* Chose at random. */ ctcmpc_send_sweep_req(ch); + goto done; +nomem_exit: + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_CRIT, + "%s(%s): MEMORY allocation ERROR\n", + CTCM_FUNTAIL, ch->id); + rc = -ENOMEM; + atomic_dec(&skb->users); + dev_kfree_skb_any(skb); + fsm_event(priv->mpcg->fsm, MPCG_EVENT_INOP, dev); done: - if (do_debug) - ctcm_pr_debug("ctcm exit: %s %s()\n", dev->name, __FUNCTION__); - return 0; + CTCM_PR_DEBUG("Exit %s(%s)\n", __func__, dev->name); + return rc; } /** @@ -888,20 +867,19 @@ done: /* first merge version - leaving both functions separated */ static int ctcm_tx(struct sk_buff *skb, struct net_device *dev) { - int rc = 0; - struct ctcm_priv *priv; - - CTCM_DBF_TEXT(TRACE, 5, __FUNCTION__); - priv = dev->priv; + struct ctcm_priv *priv = dev->priv; if (skb == NULL) { - ctcm_pr_warn("%s: NULL sk_buff passed\n", dev->name); + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%s): NULL sk_buff passed", + CTCM_FUNTAIL, dev->name); priv->stats.tx_dropped++; return 0; } if (skb_headroom(skb) < (LL_HEADER_LENGTH + 2)) { - ctcm_pr_warn("%s: Got sk_buff with head room < %ld bytes\n", - dev->name, LL_HEADER_LENGTH + 2); + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s(%s): Got sk_buff with head room < %ld bytes", + CTCM_FUNTAIL, dev->name, LL_HEADER_LENGTH + 2); dev_kfree_skb(skb); priv->stats.tx_dropped++; return 0; @@ -925,51 +903,43 @@ static int ctcm_tx(struct sk_buff *skb, struct net_device *dev) dev->trans_start = jiffies; if (ctcm_transmit_skb(priv->channel[WRITE], skb) != 0) - rc = 1; - return rc; + return 1; + return 0; } /* unmerged MPC variant of ctcm_tx */ static int ctcmpc_tx(struct sk_buff *skb, struct net_device *dev) { int len = 0; - struct ctcm_priv *priv = NULL; - struct mpc_group *grp = NULL; + struct ctcm_priv *priv = dev->priv; + struct mpc_group *grp = priv->mpcg; struct sk_buff *newskb = NULL; - if (do_debug) - ctcm_pr_debug("ctcmpc enter: %s(): skb:%0lx\n", - __FUNCTION__, (unsigned long)skb); - - CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_DEBUG, - "ctcmpc enter: %s(): skb:%0lx\n", - __FUNCTION__, (unsigned long)skb); - - priv = dev->priv; - grp = priv->mpcg; /* * Some sanity checks ... */ if (skb == NULL) { - ctcm_pr_warn("ctcmpc: %s: NULL sk_buff passed\n", dev->name); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): NULL sk_buff passed", + CTCM_FUNTAIL, dev->name); priv->stats.tx_dropped++; goto done; } if (skb_headroom(skb) < (TH_HEADER_LENGTH + PDU_HEADER_LENGTH)) { - CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_WARN, - "%s: Got sk_buff with head room < %ld bytes\n", - dev->name, TH_HEADER_LENGTH + PDU_HEADER_LENGTH); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_ERROR, + "%s(%s): Got sk_buff with head room < %ld bytes", + CTCM_FUNTAIL, dev->name, + TH_HEADER_LENGTH + PDU_HEADER_LENGTH); - if (do_debug_data) - ctcmpc_dump32((char *)skb->data, skb->len); + CTCM_D3_DUMP((char *)skb->data, min_t(int, 32, skb->len)); len = skb->len + TH_HEADER_LENGTH + PDU_HEADER_LENGTH; newskb = __dev_alloc_skb(len, gfp_type() | GFP_DMA); if (!newskb) { - printk(KERN_WARNING "ctcmpc: %s() OUT OF MEMORY-" - "Data Lost\n", - __FUNCTION__); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_ERROR, + "%s: %s: __dev_alloc_skb failed", + __func__, dev->name); dev_kfree_skb_any(skb); priv->stats.tx_dropped++; @@ -993,9 +963,9 @@ static int ctcmpc_tx(struct sk_buff *skb, struct net_device *dev) if ((fsm_getstate(priv->fsm) != DEV_STATE_RUNNING) || (fsm_getstate(grp->fsm) < MPCG_STATE_XID2INITW)) { dev_kfree_skb_any(skb); - printk(KERN_INFO "ctcmpc: %s() DATA RCVD - MPC GROUP " - "NOT ACTIVE - DROPPED\n", - __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): inactive MPCGROUP - dropped", + CTCM_FUNTAIL, dev->name); priv->stats.tx_dropped++; priv->stats.tx_errors++; priv->stats.tx_carrier_errors++; @@ -1003,8 +973,9 @@ static int ctcmpc_tx(struct sk_buff *skb, struct net_device *dev) } if (ctcm_test_and_set_busy(dev)) { - printk(KERN_WARNING "%s:DEVICE ERR - UNRECOVERABLE DATA LOSS\n", - __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): device busy - dropped", + CTCM_FUNTAIL, dev->name); dev_kfree_skb_any(skb); priv->stats.tx_dropped++; priv->stats.tx_errors++; @@ -1015,12 +986,9 @@ static int ctcmpc_tx(struct sk_buff *skb, struct net_device *dev) dev->trans_start = jiffies; if (ctcmpc_transmit_skb(priv->channel[WRITE], skb) != 0) { - printk(KERN_WARNING "ctcmpc: %s() DEVICE ERROR" - ": Data Lost \n", - __FUNCTION__); - printk(KERN_WARNING "ctcmpc: %s() DEVICE ERROR" - " - UNRECOVERABLE DATA LOSS\n", - __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): device error - dropped", + CTCM_FUNTAIL, dev->name); dev_kfree_skb_any(skb); priv->stats.tx_dropped++; priv->stats.tx_errors++; @@ -1054,8 +1022,6 @@ static int ctcm_change_mtu(struct net_device *dev, int new_mtu) struct ctcm_priv *priv; int max_bufsize; - CTCM_DBF_TEXT(SETUP, CTC_DBF_INFO, __FUNCTION__); - if (new_mtu < 576 || new_mtu > 65527) return -EINVAL; @@ -1087,30 +1053,13 @@ static struct net_device_stats *ctcm_stats(struct net_device *dev) return &((struct ctcm_priv *)dev->priv)->stats; } - -static void ctcm_netdev_unregister(struct net_device *dev) -{ - CTCM_DBF_TEXT(SETUP, CTC_DBF_INFO, __FUNCTION__); - if (!dev) - return; - unregister_netdev(dev); -} - -static int ctcm_netdev_register(struct net_device *dev) -{ - CTCM_DBF_TEXT(SETUP, CTC_DBF_INFO, __FUNCTION__); - return register_netdev(dev); -} - static void ctcm_free_netdevice(struct net_device *dev) { struct ctcm_priv *priv; struct mpc_group *grp; - CTCM_DBF_TEXT(SETUP, CTC_DBF_INFO, __FUNCTION__); - - if (!dev) - return; + CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, + "%s(%s)", CTCM_FUNTAIL, dev->name); priv = dev->priv; if (priv) { grp = priv->mpcg; @@ -1171,7 +1120,9 @@ static struct net_device *ctcm_init_netdevice(struct ctcm_priv *priv) dev = alloc_netdev(0, CTC_DEVICE_GENE, ctcm_dev_setup); if (!dev) { - ctcm_pr_err("%s: Out of memory\n", __FUNCTION__); + CTCM_DBF_TEXT_(ERROR, CTC_DBF_CRIT, + "%s: MEMORY allocation ERROR", + CTCM_FUNTAIL); return NULL; } dev->priv = priv; @@ -1209,6 +1160,7 @@ static struct net_device *ctcm_init_netdevice(struct ctcm_priv *priv) } CTCMY_DBF_DEV(SETUP, dev, "finished"); + return dev; } @@ -1226,18 +1178,24 @@ static void ctcm_irq_handler(struct ccw_device *cdev, struct net_device *dev; struct ctcm_priv *priv; struct ccwgroup_device *cgdev; + int cstat; + int dstat; + + CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, + "Enter %s(%s)", CTCM_FUNTAIL, &cdev->dev.bus_id); - CTCM_DBF_TEXT(TRACE, CTC_DBF_DEBUG, __FUNCTION__); if (ctcm_check_irb_error(cdev, irb)) return; cgdev = dev_get_drvdata(&cdev->dev); + cstat = irb->scsw.cmd.cstat; + dstat = irb->scsw.cmd.dstat; + /* Check for unsolicited interrupts. */ if (cgdev == NULL) { - ctcm_pr_warn("ctcm: Got unsolicited irq: %s c-%02x d-%02x\n", - cdev->dev.bus_id, irb->scsw.cmd.cstat, - irb->scsw.cmd.dstat); + ctcm_pr_warn("ctcm: Got unsolicited irq: c-%02x d-%02x\n", + cstat, dstat); return; } @@ -1254,26 +1212,22 @@ static void ctcm_irq_handler(struct ccw_device *cdev, return; } - dev = (struct net_device *)(ch->netdev); + dev = ch->netdev; if (dev == NULL) { ctcm_pr_crit("ctcm: %s dev=NULL bus_id=%s, ch=0x%p\n", - __FUNCTION__, cdev->dev.bus_id, ch); + __func__, cdev->dev.bus_id, ch); return; } - if (do_debug) - ctcm_pr_debug("%s: interrupt for device: %s " - "received c-%02x d-%02x\n", - dev->name, - ch->id, - irb->scsw.cmd.cstat, - irb->scsw.cmd.dstat); + CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, + "%s(%s): int. for %s: cstat=%02x dstat=%02x", + CTCM_FUNTAIL, dev->name, ch->id, cstat, dstat); /* Copy interruption response block. */ memcpy(ch->irb, irb, sizeof(struct irb)); - /* Check for good subchannel return code, otherwise error message */ if (irb->scsw.cmd.cstat) { + /* Check for good subchannel return code, otherwise error message */ fsm_event(ch->fsm, CTC_EVENT_SC_UNKNOWN, ch); ctcm_pr_warn("%s: subchannel check for dev: %s - %02x %02x\n", dev->name, ch->id, irb->scsw.cmd.cstat, @@ -1283,6 +1237,11 @@ static void ctcm_irq_handler(struct ccw_device *cdev, /* Check the reason-code of a unit check */ if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { + if ((irb->ecw[0] & ch->sense_rc) == 0) + /* print it only once */ + CTCM_DBF_TEXT_(TRACE, CTC_DBF_INFO, + "%s(%s): sense=%02x, ds=%02x", + CTCM_FUNTAIL, ch->id, irb->ecw[0], dstat); ccw_unit_check(ch, irb->ecw[0]); return; } @@ -1320,14 +1279,18 @@ static int ctcm_probe_device(struct ccwgroup_device *cgdev) struct ctcm_priv *priv; int rc; - CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, "%s %p", __FUNCTION__, cgdev); + CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, + "%s %p", + __func__, cgdev); if (!get_device(&cgdev->dev)) return -ENODEV; priv = kzalloc(sizeof(struct ctcm_priv), GFP_KERNEL); if (!priv) { - ctcm_pr_err("%s: Out of memory\n", __FUNCTION__); + CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR, + "%s: memory allocation failure", + CTCM_FUNTAIL); put_device(&cgdev->dev); return -ENOMEM; } @@ -1364,10 +1327,13 @@ static int add_channel(struct ccw_device *cdev, enum channel_types type, int ccw_num; int rc = 0; - CTCM_DBF_TEXT(TRACE, 2, __FUNCTION__); + CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, + "%s(%s), type %d, proto %d", + __func__, cdev->dev.bus_id, type, priv->protocol); + ch = kzalloc(sizeof(struct channel), GFP_KERNEL); if (ch == NULL) - goto nomem_return; + return -ENOMEM; ch->protocol = priv->protocol; if (IS_MPC(priv)) { @@ -1478,7 +1444,7 @@ static int add_channel(struct ccw_device *cdev, enum channel_types type, if (*c && (!strncmp((*c)->id, ch->id, CTCM_ID_SIZE))) { CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, "%s (%s) already in list, using old entry", - __FUNCTION__, (*c)->id); + __func__, (*c)->id); goto free_return; } @@ -1498,11 +1464,10 @@ static int add_channel(struct ccw_device *cdev, enum channel_types type, return 0; nomem_return: - ctcm_pr_warn("ctcm: Out of memory in %s\n", __FUNCTION__); rc = -ENOMEM; free_return: /* note that all channel pointers are 0 or valid */ - kfree(ch->ccw); /* TODO: check that again */ + kfree(ch->ccw); kfree(ch->discontact_th); kfree_fsm(ch->fsm); kfree(ch->irb); @@ -1540,48 +1505,48 @@ static int ctcm_new_device(struct ccwgroup_device *cgdev) enum channel_types type; struct ctcm_priv *priv; struct net_device *dev; + struct ccw_device *cdev0; + struct ccw_device *cdev1; int ret; - CTCM_DBF_TEXT(SETUP, CTC_DBF_INFO, __FUNCTION__); - priv = dev_get_drvdata(&cgdev->dev); if (!priv) return -ENODEV; - type = get_channel_type(&cgdev->cdev[0]->id); + cdev0 = cgdev->cdev[0]; + cdev1 = cgdev->cdev[1]; + + type = get_channel_type(&cdev0->id); - snprintf(read_id, CTCM_ID_SIZE, "ch-%s", cgdev->cdev[0]->dev.bus_id); - snprintf(write_id, CTCM_ID_SIZE, "ch-%s", cgdev->cdev[1]->dev.bus_id); + snprintf(read_id, CTCM_ID_SIZE, "ch-%s", cdev0->dev.bus_id); + snprintf(write_id, CTCM_ID_SIZE, "ch-%s", cdev1->dev.bus_id); - ret = add_channel(cgdev->cdev[0], type, priv); + ret = add_channel(cdev0, type, priv); if (ret) return ret; - ret = add_channel(cgdev->cdev[1], type, priv); + ret = add_channel(cdev1, type, priv); if (ret) return ret; - ret = ccw_device_set_online(cgdev->cdev[0]); + ret = ccw_device_set_online(cdev0); if (ret != 0) { - CTCM_DBF_TEXT(SETUP, CTC_DBF_WARN, - "ccw_device_set_online (cdev[0]) failed "); - ctcm_pr_warn("ccw_device_set_online (cdev[0]) failed " - "with ret = %d\n", ret); + /* may be ok to fail now - can be done later */ + CTCM_DBF_TEXT_(TRACE, CTC_DBF_NOTICE, + "%s(%s) set_online rc=%d", + CTCM_FUNTAIL, read_id, ret); } - ret = ccw_device_set_online(cgdev->cdev[1]); + ret = ccw_device_set_online(cdev1); if (ret != 0) { - CTCM_DBF_TEXT(SETUP, CTC_DBF_WARN, - "ccw_device_set_online (cdev[1]) failed "); - ctcm_pr_warn("ccw_device_set_online (cdev[1]) failed " - "with ret = %d\n", ret); + /* may be ok to fail now - can be done later */ + CTCM_DBF_TEXT_(TRACE, CTC_DBF_NOTICE, + "%s(%s) set_online rc=%d", + CTCM_FUNTAIL, write_id, ret); } dev = ctcm_init_netdevice(priv); - - if (dev == NULL) { - ctcm_pr_warn("ctcm_init_netdevice failed\n"); - goto out; - } + if (dev == NULL) + goto out; for (direction = READ; direction <= WRITE; direction++) { priv->channel[direction] = @@ -1590,8 +1555,7 @@ static int ctcm_new_device(struct ccwgroup_device *cgdev) if (priv->channel[direction] == NULL) { if (direction == WRITE) channel_free(priv->channel[READ]); - ctcm_free_netdevice(dev); - goto out; + goto out_dev; } priv->channel[direction]->netdev = dev; priv->channel[direction]->protocol = priv->protocol; @@ -1600,26 +1564,24 @@ static int ctcm_new_device(struct ccwgroup_device *cgdev) /* sysfs magic */ SET_NETDEV_DEV(dev, &cgdev->dev); - if (ctcm_netdev_register(dev) != 0) { - ctcm_free_netdevice(dev); - goto out; - } + if (register_netdev(dev)) + goto out_dev; if (ctcm_add_attributes(&cgdev->dev)) { - ctcm_netdev_unregister(dev); -/* dev->priv = NULL; why that ???? */ - ctcm_free_netdevice(dev); - goto out; + unregister_netdev(dev); + goto out_dev; } strlcpy(priv->fsm->name, dev->name, sizeof(priv->fsm->name)); CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, - "setup(%s) ok : r/w = %s / %s, proto : %d", - dev->name, priv->channel[READ]->id, + "setup(%s) OK : r/w = %s/%s, protocol : %d", dev->name, + priv->channel[READ]->id, priv->channel[WRITE]->id, priv->protocol); return 0; +out_dev: + ctcm_free_netdevice(dev); out: ccw_device_set_offline(cgdev->cdev[1]); ccw_device_set_offline(cgdev->cdev[0]); @@ -1658,8 +1620,7 @@ static int ctcm_shutdown_device(struct ccwgroup_device *cgdev) channel_free(priv->channel[WRITE]); if (dev) { - ctcm_netdev_unregister(dev); -/* dev->priv = NULL; why that ??? */ + unregister_netdev(dev); ctcm_free_netdevice(dev); } @@ -1682,13 +1643,16 @@ static int ctcm_shutdown_device(struct ccwgroup_device *cgdev) static void ctcm_remove_device(struct ccwgroup_device *cgdev) { - struct ctcm_priv *priv; + struct ctcm_priv *priv = dev_get_drvdata(&cgdev->dev); - CTCM_DBF_TEXT(SETUP, CTC_DBF_ERROR, __FUNCTION__); + BUG_ON(priv == NULL); + + CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, + "removing device %s, r/w = %s/%s, proto : %d", + priv->channel[READ]->netdev->name, + priv->channel[READ]->id, priv->channel[WRITE]->id, + priv->protocol); - priv = dev_get_drvdata(&cgdev->dev); - if (!priv) - return; if (cgdev->state == CCWGROUP_ONLINE) ctcm_shutdown_device(cgdev); ctcm_remove_files(&cgdev->dev); @@ -1748,8 +1712,6 @@ static int __init ctcm_init(void) ret = ctcm_register_dbf_views(); if (ret) { - ctcm_pr_crit("ctcm_init failed with ctcm_register_dbf_views " - "rc = %d\n", ret); return ret; } ret = register_cu3088_discipline(&ctcm_group_driver); diff --git a/drivers/s390/net/ctcm_main.h b/drivers/s390/net/ctcm_main.h index 95b0c0b..a72e0fe 100644 --- a/drivers/s390/net/ctcm_main.h +++ b/drivers/s390/net/ctcm_main.h @@ -22,9 +22,9 @@ #define CTC_DRIVER_NAME "ctcm" #define CTC_DEVICE_NAME "ctc" -#define CTC_DEVICE_GENE "ctc%d" #define MPC_DEVICE_NAME "mpc" -#define MPC_DEVICE_GENE "mpc%d" +#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 @@ -48,6 +48,30 @@ #define ctcm_pr_err(fmt, arg...) printk(KERN_ERR fmt, ##arg) #define ctcm_pr_crit(fmt, arg...) printk(KERN_CRIT 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) + /* * CCW commands, used in this driver. */ @@ -161,8 +185,9 @@ struct channel { fsm_instance *fsm; /* finite state machine of this channel */ struct net_device *netdev; /* corresponding net_device */ struct ctcm_profile prof; - unsigned char *trans_skb_data; + __u8 *trans_skb_data; __u16 logflags; + __u8 sense_rc; /* last unit check sense code report control */ }; struct ctcm_priv { diff --git a/drivers/s390/net/ctcm_mpc.c b/drivers/s390/net/ctcm_mpc.c index 044adde..49ae1cd 100644 --- a/drivers/s390/net/ctcm_mpc.c +++ b/drivers/s390/net/ctcm_mpc.c @@ -149,7 +149,7 @@ void ctcmpc_dumpit(char *buf, int len) for (ct = 0; ct < len; ct++, ptr++, rptr++) { if (sw == 0) { #if (UTS_MACHINE == s390x) - sprintf(addr, "%16.16lx", (unsigned long)rptr); + sprintf(addr, "%16.16lx", (__u64)rptr); #else sprintf(addr, "%8.8X", (__u32)rptr); #endif @@ -164,7 +164,7 @@ void ctcmpc_dumpit(char *buf, int len) strcat(bhex, " "); #if (UTS_MACHINE == s390x) - sprintf(tbuf, "%2.2lX", (unsigned long)*ptr); + sprintf(tbuf, "%2.2lX", (__u64)*ptr); #else sprintf(tbuf, "%2.2X", (__u32)*ptr); #endif @@ -179,24 +179,24 @@ void ctcmpc_dumpit(char *buf, int len) basc[sw+1] = '\0'; sw++; rm--; - if (sw == 16) { - if ((strcmp(duphex, bhex)) != 0) { - if (dup != 0) { - sprintf(tdup, "Duplicate as above " - "to %s", addr); - printk(KERN_INFO " " - " --- %s ---\n", tdup); - } - printk(KERN_INFO " %s (+%s) : %s [%s]\n", + if (sw != 16) + continue; + if ((strcmp(duphex, bhex)) != 0) { + if (dup != 0) { + sprintf(tdup, + "Duplicate as above to %s", addr); + ctcm_pr_debug(" --- %s ---\n", + tdup); + } + ctcm_pr_debug(" %s (+%s) : %s [%s]\n", addr, boff, bhex, basc); - dup = 0; - strcpy(duphex, bhex); - } else - dup++; + dup = 0; + strcpy(duphex, bhex); + } else + dup++; - sw = 0; - rm = 16; - } + sw = 0; + rm = 16; } /* endfor */ if (sw != 0) { @@ -210,19 +210,17 @@ void ctcmpc_dumpit(char *buf, int len) } if (dup != 0) { sprintf(tdup, "Duplicate as above to %s", addr); - printk(KERN_INFO " " - " --- %s ---\n", tdup); + ctcm_pr_debug(" --- %s ---\n", tdup); } - printk(KERN_INFO " %s (+%s) : %s [%s]\n", - addr, boff, bhex, basc); + ctcm_pr_debug(" %s (+%s) : %s [%s]\n", + addr, boff, bhex, basc); } else { if (dup >= 1) { sprintf(tdup, "Duplicate as above to %s", addr); - printk(KERN_INFO " " - " --- %s ---\n", tdup); + ctcm_pr_debug(" --- %s ---\n", tdup); } if (dup != 0) { - printk(KERN_INFO " %s (+%s) : %s [%s]\n", + ctcm_pr_debug(" %s (+%s) : %s [%s]\n", addr, boff, bhex, basc); } } @@ -241,7 +239,7 @@ void ctcmpc_dumpit(char *buf, int len) */ void ctcmpc_dump_skb(struct sk_buff *skb, int offset) { - unsigned char *p = skb->data; + __u8 *p = skb->data; struct th_header *header; struct pdu *pheader; int bl = skb->len; @@ -253,8 +251,8 @@ void ctcmpc_dump_skb(struct sk_buff *skb, int offset) p += offset; header = (struct th_header *)p; - printk(KERN_INFO "dump:\n"); - printk(KERN_INFO "skb len=%d \n", skb->len); + ctcm_pr_debug("dump:\n"); + ctcm_pr_debug("skb len=%d \n", skb->len); if (skb->len > 2) { switch (header->th_ch_flag) { case TH_HAS_PDU: @@ -273,32 +271,64 @@ void ctcmpc_dump_skb(struct sk_buff *skb, int offset) } pheader = (struct pdu *)p; - printk(KERN_INFO "pdu->offset: %d hex: %04x\n", - pheader->pdu_offset, pheader->pdu_offset); - printk(KERN_INFO "pdu->flag : %02x\n", pheader->pdu_flag); - printk(KERN_INFO "pdu->proto : %02x\n", pheader->pdu_proto); - printk(KERN_INFO "pdu->seq : %02x\n", pheader->pdu_seq); + ctcm_pr_debug("pdu->offset: %d hex: %04x\n", + pheader->pdu_offset, pheader->pdu_offset); + ctcm_pr_debug("pdu->flag : %02x\n", pheader->pdu_flag); + ctcm_pr_debug("pdu->proto : %02x\n", pheader->pdu_proto); + ctcm_pr_debug("pdu->seq : %02x\n", pheader->pdu_seq); goto dumpdata; dumpth: - printk(KERN_INFO "th->seg : %02x\n", header->th_seg); - printk(KERN_INFO "th->ch : %02x\n", header->th_ch_flag); - printk(KERN_INFO "th->blk_flag: %02x\n", header->th_blk_flag); - printk(KERN_INFO "th->type : %s\n", - (header->th_is_xid) ? "DATA" : "XID"); - printk(KERN_INFO "th->seqnum : %04x\n", header->th_seq_num); + ctcm_pr_debug("th->seg : %02x\n", header->th_seg); + ctcm_pr_debug("th->ch : %02x\n", header->th_ch_flag); + ctcm_pr_debug("th->blk_flag: %02x\n", header->th_blk_flag); + ctcm_pr_debug("th->type : %s\n", + (header->th_is_xid) ? "DATA" : "XID"); + ctcm_pr_debug("th->seqnum : %04x\n", header->th_seq_num); } dumpdata: if (bl > 32) bl = 32; - printk(KERN_INFO "data: "); + ctcm_pr_debug("data: "); for (i = 0; i < bl; i++) - printk(KERN_INFO "%02x%s", *p++, (i % 16) ? " " : "\n<7>"); - printk(KERN_INFO "\n"); + ctcm_pr_debug("%02x%s", *p++, (i % 16) ? " " : "\n"); + ctcm_pr_debug("\n"); } #endif +static struct net_device *ctcmpc_get_dev(int port_num) +{ + char device[20]; + struct net_device *dev; + struct ctcm_priv *priv; + + sprintf(device, "%s%i", MPC_DEVICE_NAME, port_num); + + dev = __dev_get_by_name(&init_net, device); + + if (dev == NULL) { + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s: Device not found by name: %s", + CTCM_FUNTAIL, device); + return NULL; + } + priv = dev->priv; + if (priv == NULL) { + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): dev->priv is NULL", + CTCM_FUNTAIL, device); + return NULL; + } + if (priv->mpcg == NULL) { + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): priv->mpcg is NULL", + CTCM_FUNTAIL, device); + return NULL; + } + return dev; +} + /* * ctc_mpc_alloc_channel * (exported interface) @@ -308,34 +338,23 @@ dumpdata: */ int ctc_mpc_alloc_channel(int port_num, void (*callback)(int, int)) { - char device[20]; struct net_device *dev; struct mpc_group *grp; struct ctcm_priv *priv; - ctcm_pr_debug("ctcmpc enter: %s()\n", __FUNCTION__); - - sprintf(device, "%s%i", MPC_DEVICE_NAME, port_num); - dev = __dev_get_by_name(&init_net, device); - - if (dev == NULL) { - printk(KERN_INFO "ctc_mpc_alloc_channel %s dev=NULL\n", device); + dev = ctcmpc_get_dev(port_num); + if (dev == NULL) return 1; - } - priv = dev->priv; grp = priv->mpcg; - if (!grp) - return 1; grp->allochanfunc = callback; grp->port_num = port_num; grp->port_persist = 1; - ctcm_pr_debug("ctcmpc: %s called for device %s state=%s\n", - __FUNCTION__, - dev->name, - fsm_getstate_str(grp->fsm)); + CTCM_DBF_TEXT_(MPC_SETUP, CTC_DBF_INFO, + "%s(%s): state=%s", + CTCM_FUNTAIL, dev->name, fsm_getstate_str(grp->fsm)); switch (fsm_getstate(grp->fsm)) { case MPCG_STATE_INOP: @@ -377,12 +396,8 @@ int ctc_mpc_alloc_channel(int port_num, void (*callback)(int, int)) grp->allocchan_callback_retries = 0; } break; - default: - return 0; - } - ctcm_pr_debug("ctcmpc exit: %s()\n", __FUNCTION__); return 0; } EXPORT_SYMBOL(ctc_mpc_alloc_channel); @@ -394,31 +409,22 @@ EXPORT_SYMBOL(ctc_mpc_alloc_channel); void ctc_mpc_establish_connectivity(int port_num, void (*callback)(int, int, int)) { - char device[20]; struct net_device *dev; struct mpc_group *grp; struct ctcm_priv *priv; struct channel *rch, *wch; - ctcm_pr_debug("ctcmpc enter: %s()\n", __FUNCTION__); - - sprintf(device, "%s%i", MPC_DEVICE_NAME, port_num); - dev = __dev_get_by_name(&init_net, device); - - if (dev == NULL) { - printk(KERN_INFO "ctc_mpc_establish_connectivity " - "%s dev=NULL\n", device); + dev = ctcmpc_get_dev(port_num); + if (dev == NULL) return; - } priv = dev->priv; + grp = priv->mpcg; rch = priv->channel[READ]; wch = priv->channel[WRITE]; - grp = priv->mpcg; - - ctcm_pr_debug("ctcmpc: %s() called for device %s state=%s\n", - __FUNCTION__, dev->name, - fsm_getstate_str(grp->fsm)); + CTCM_DBF_TEXT_(MPC_SETUP, CTC_DBF_INFO, + "%s(%s): state=%s", + CTCM_FUNTAIL, dev->name, fsm_getstate_str(grp->fsm)); grp->estconnfunc = callback; grp->port_num = port_num; @@ -446,8 +452,10 @@ void ctc_mpc_establish_connectivity(int port_num, case MPCG_STATE_RESET: /* MPC Group is not ready to start XID - min num of */ /* 1 read and 1 write channel have not been acquired*/ - printk(KERN_WARNING "ctcmpc: %s() REJECTED ACTIVE XID Req" - "uest - Channel Pair is not Active\n", __FUNCTION__); + + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): REJECTED - inactive channels", + CTCM_FUNTAIL, dev->name); if (grp->estconnfunc) { grp->estconnfunc(grp->port_num, -1, 0); grp->estconnfunc = NULL; @@ -457,11 +465,12 @@ void ctc_mpc_establish_connectivity(int port_num, /* alloc channel was called but no XID exchange */ /* has occurred. initiate xside XID exchange */ /* make sure yside XID0 processing has not started */ + if ((fsm_getstate(rch->fsm) > CH_XID0_PENDING) || (fsm_getstate(wch->fsm) > CH_XID0_PENDING)) { - printk(KERN_WARNING "mpc: %s() ABORT ACTIVE XID" - " Request- PASSIVE XID in process\n" - , __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): ABORT - PASSIVE XID", + CTCM_FUNTAIL, dev->name); break; } grp->send_qllc_disc = 1; @@ -476,9 +485,9 @@ void ctc_mpc_establish_connectivity(int port_num, (fsm_getstate(rch->fsm) == CH_XID0_PENDING)) fsm_event(grp->fsm, MPCG_EVENT_XID0DO, rch); else { - printk(KERN_WARNING "mpc: %s() Unable to start" - " ACTIVE XID0 on read channel\n", - __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): RX-%s not ready for ACTIVE XID0", + CTCM_FUNTAIL, dev->name, rch->id); if (grp->estconnfunc) { grp->estconnfunc(grp->port_num, -1, 0); grp->estconnfunc = NULL; @@ -490,9 +499,9 @@ void ctc_mpc_establish_connectivity(int port_num, (fsm_getstate(wch->fsm) == CH_XID0_PENDING)) fsm_event(grp->fsm, MPCG_EVENT_XID0DO, wch); else { - printk(KERN_WARNING "mpc: %s() Unable to start" - " ACTIVE XID0 on write channel\n", - __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): WX-%s not ready for ACTIVE XID0", + CTCM_FUNTAIL, dev->name, wch->id); if (grp->estconnfunc) { grp->estconnfunc(grp->port_num, -1, 0); grp->estconnfunc = NULL; @@ -508,7 +517,7 @@ void ctc_mpc_establish_connectivity(int port_num, } done: - ctcm_pr_debug("ctcmpc exit: %s()\n", __FUNCTION__); + CTCM_PR_DEBUG("Exit %s()\n", __func__); return; } EXPORT_SYMBOL(ctc_mpc_establish_connectivity); @@ -520,40 +529,22 @@ EXPORT_SYMBOL(ctc_mpc_establish_connectivity); void ctc_mpc_dealloc_ch(int port_num) { struct net_device *dev; - char device[20]; struct ctcm_priv *priv; struct mpc_group *grp; - ctcm_pr_debug("ctcmpc enter: %s()\n", __FUNCTION__); - sprintf(device, "%s%i", MPC_DEVICE_NAME, port_num); - dev = __dev_get_by_name(&init_net, device); - - if (dev == NULL) { - printk(KERN_INFO "%s() %s dev=NULL\n", __FUNCTION__, device); - goto done; - } + dev = ctcmpc_get_dev(port_num); + if (dev == NULL) + return; + priv = dev->priv; + grp = priv->mpcg; - ctcm_pr_debug("ctcmpc:%s %s() called for device %s refcount=%d\n", - dev->name, __FUNCTION__, - dev->name, atomic_read(&dev->refcnt)); + CTCM_DBF_TEXT_(MPC_SETUP, CTC_DBF_DEBUG, + "%s: %s: refcount = %d\n", + CTCM_FUNTAIL, dev->name, atomic_read(&dev->refcnt)); - priv = dev->priv; - if (priv == NULL) { - printk(KERN_INFO "%s() %s priv=NULL\n", - __FUNCTION__, device); - goto done; - } fsm_deltimer(&priv->restart_timer); - - grp = priv->mpcg; - if (grp == NULL) { - printk(KERN_INFO "%s() %s dev=NULL\n", __FUNCTION__, device); - goto done; - } grp->channels_terminating = 0; - fsm_deltimer(&grp->timer); - grp->allochanfunc = NULL; grp->estconnfunc = NULL; grp->port_persist = 0; @@ -561,8 +552,6 @@ void ctc_mpc_dealloc_ch(int port_num) fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); ctcm_close(dev); -done: - ctcm_pr_debug("ctcmpc exit: %s()\n", __FUNCTION__); return; } EXPORT_SYMBOL(ctc_mpc_dealloc_ch); @@ -573,32 +562,22 @@ EXPORT_SYMBOL(ctc_mpc_dealloc_ch); */ void ctc_mpc_flow_control(int port_num, int flowc) { - char device[20]; struct ctcm_priv *priv; struct mpc_group *grp; struct net_device *dev; struct channel *rch; int mpcg_state; - ctcm_pr_debug("ctcmpc enter: %s() %i\n", __FUNCTION__, flowc); - - sprintf(device, "%s%i", MPC_DEVICE_NAME, port_num); - dev = __dev_get_by_name(&init_net, device); - - if (dev == NULL) { - printk(KERN_INFO "ctc_mpc_flow_control %s dev=NULL\n", device); + dev = ctcmpc_get_dev(port_num); + if (dev == NULL) return; - } + priv = dev->priv; + grp = priv->mpcg; - ctcm_pr_debug("ctcmpc: %s %s called \n", dev->name, __FUNCTION__); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_DEBUG, + "%s: %s: flowc = %d", + CTCM_FUNTAIL, dev->name, flowc); - priv = dev->priv; - if (priv == NULL) { - printk(KERN_INFO "ctcmpc:%s() %s priv=NULL\n", - __FUNCTION__, device); - return; - } - grp = priv->mpcg; rch = priv->channel[READ]; mpcg_state = fsm_getstate(grp->fsm); @@ -629,7 +608,6 @@ void ctc_mpc_flow_control(int port_num, int flowc) break; } - ctcm_pr_debug("ctcmpc exit: %s() %i\n", __FUNCTION__, flowc); } EXPORT_SYMBOL(ctc_mpc_flow_control); @@ -646,12 +624,8 @@ static void mpc_rcvd_sweep_resp(struct mpcg_info *mpcginfo) struct mpc_group *grp = priv->mpcg; struct channel *ch = priv->channel[WRITE]; - if (do_debug) - ctcm_pr_debug("ctcmpc enter: %s(): ch=0x%p id=%s\n", - __FUNCTION__, ch, ch->id); - - if (do_debug_data) - ctcmpc_dumpit((char *)mpcginfo->sweep, TH_SWEEP_LENGTH); + CTCM_PR_DEBUG("%s: ch=0x%p id=%s\n", __func__, ch, ch->id); + CTCM_D3_DUMP((char *)mpcginfo->sweep, TH_SWEEP_LENGTH); grp->sweep_rsp_pend_num--; @@ -684,14 +658,13 @@ static void ctcmpc_send_sweep_resp(struct channel *rch) struct sk_buff *sweep_skb; struct channel *ch = priv->channel[WRITE]; - if (do_debug) - ctcm_pr_debug("ctcmpc exit : %s(): ch=0x%p id=%s\n", - __FUNCTION__, rch, rch->id); + CTCM_PR_DEBUG("%s: ch=0x%p id=%s\n", __func__, rch, rch->id); - sweep_skb = __dev_alloc_skb(MPC_BUFSIZE_DEFAULT, - GFP_ATOMIC|GFP_DMA); + sweep_skb = __dev_alloc_skb(MPC_BUFSIZE_DEFAULT, GFP_ATOMIC | GFP_DMA); if (sweep_skb == NULL) { - printk(KERN_INFO "Couldn't alloc sweep_skb\n"); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): sweep_skb allocation ERROR\n", + CTCM_FUNTAIL, rch->id); rc = -ENOMEM; goto done; } @@ -746,7 +719,7 @@ static void mpc_rcvd_sweep_req(struct mpcg_info *mpcginfo) if (do_debug) CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_DEBUG, - " %s(): ch=0x%p id=%s\n", __FUNCTION__, ch, ch->id); + " %s(): ch=0x%p id=%s\n", __func__, ch, ch->id); if (grp->in_sweep == 0) { grp->in_sweep = 1; @@ -755,8 +728,7 @@ static void mpc_rcvd_sweep_req(struct mpcg_info *mpcginfo) grp->sweep_rsp_pend_num = grp->active_channels[READ]; } - if (do_debug_data) - ctcmpc_dumpit((char *)mpcginfo->sweep, TH_SWEEP_LENGTH); + CTCM_D3_DUMP((char *)mpcginfo->sweep, TH_SWEEP_LENGTH); grp->sweep_req_pend_num--; ctcmpc_send_sweep_resp(ch); @@ -875,25 +847,13 @@ static int mpcg_fsm_len = ARRAY_SIZE(mpcg_fsm); static void mpc_action_go_ready(fsm_instance *fsm, int event, void *arg) { struct net_device *dev = arg; - struct ctcm_priv *priv = NULL; - struct mpc_group *grp = NULL; - - if (dev == NULL) { - printk(KERN_INFO "%s() dev=NULL\n", __FUNCTION__); - return; - } - - ctcm_pr_debug("ctcmpc enter: %s %s()\n", dev->name, __FUNCTION__); - - priv = dev->priv; - if (priv == NULL) { - printk(KERN_INFO "%s() priv=NULL\n", __FUNCTION__); - return; - } + struct ctcm_priv *priv = dev->priv; + struct mpc_group *grp = priv->mpcg; - grp = priv->mpcg; if (grp == NULL) { - printk(KERN_INFO "%s() grp=NULL\n", __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): No MPC group", + CTCM_FUNTAIL, dev->name); return; } @@ -907,7 +867,12 @@ static void mpc_action_go_ready(fsm_instance *fsm, int event, void *arg) grp->estconnfunc = NULL; } else if (grp->allochanfunc) grp->send_qllc_disc = 1; - goto done; + + fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): fails", + CTCM_FUNTAIL, dev->name); + return; } grp->port_persist = 1; @@ -916,14 +881,7 @@ static void mpc_action_go_ready(fsm_instance *fsm, int event, void *arg) tasklet_hi_schedule(&grp->mpc_tasklet2); - ctcm_pr_debug("ctcmpc exit: %s %s()\n", dev->name, __FUNCTION__); return; - -done: - fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); - - - ctcm_pr_info("ctcmpc: %s()failure occurred\n", __FUNCTION__); } /* @@ -933,42 +891,28 @@ done: void mpc_group_ready(unsigned long adev) { struct net_device *dev = (struct net_device *)adev; - struct ctcm_priv *priv = NULL; - struct mpc_group *grp = NULL; + struct ctcm_priv *priv = dev->priv; + struct mpc_group *grp = priv->mpcg; struct channel *ch = NULL; - - ctcm_pr_debug("ctcmpc enter: %s()\n", __FUNCTION__); - - if (dev == NULL) { - printk(KERN_INFO "%s() dev=NULL\n", __FUNCTION__); - return; - } - - priv = dev->priv; - if (priv == NULL) { - printk(KERN_INFO "%s() priv=NULL\n", __FUNCTION__); - return; - } - - grp = priv->mpcg; if (grp == NULL) { - printk(KERN_INFO "ctcmpc:%s() grp=NULL\n", __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): No MPC group", + CTCM_FUNTAIL, dev->name); return; } - printk(KERN_NOTICE "ctcmpc: %s GROUP TRANSITIONED TO READY" - " maxbuf:%d\n", - dev->name, grp->group_max_buflen); + CTCM_DBF_TEXT_(MPC_SETUP, CTC_DBF_NOTICE, + "%s: %s: GROUP TRANSITIONED TO READY, maxbuf = %d\n", + CTCM_FUNTAIL, dev->name, grp->group_max_buflen); fsm_newstate(grp->fsm, MPCG_STATE_READY); /* Put up a read on the channel */ ch = priv->channel[READ]; ch->pdu_seq = 0; - if (do_debug_data) - ctcm_pr_debug("ctcmpc: %s() ToDCM_pdu_seq= %08x\n" , - __FUNCTION__, ch->pdu_seq); + CTCM_PR_DBGDATA("ctcmpc: %s() ToDCM_pdu_seq= %08x\n" , + __func__, ch->pdu_seq); ctcmpc_chx_rxidle(ch->fsm, CTC_EVENT_START, ch); /* Put the write channel in idle state */ @@ -980,22 +924,18 @@ void mpc_group_ready(unsigned long adev) spin_unlock(&ch->collect_lock); } ctcm_chx_txidle(ch->fsm, CTC_EVENT_START, ch); - ctcm_clear_busy(dev); if (grp->estconnfunc) { grp->estconnfunc(grp->port_num, 0, grp->group_max_buflen); grp->estconnfunc = NULL; - } else - if (grp->allochanfunc) - grp->allochanfunc(grp->port_num, - grp->group_max_buflen); + } else if (grp->allochanfunc) + grp->allochanfunc(grp->port_num, grp->group_max_buflen); grp->send_qllc_disc = 1; grp->changed_side = 0; - ctcm_pr_debug("ctcmpc exit: %s()\n", __FUNCTION__); return; } @@ -1004,51 +944,26 @@ void mpc_group_ready(unsigned long adev) * Increment the MPC Group Active Channel Counts * helper of dev_action (called from channel fsm) */ -int mpc_channel_action(struct channel *ch, int direction, int action) +void mpc_channel_action(struct channel *ch, int direction, int action) { - struct net_device *dev = ch->netdev; - struct ctcm_priv *priv; - struct mpc_group *grp = NULL; - int rc = 0; - - if (do_debug) - ctcm_pr_debug("ctcmpc enter: %s(): ch=0x%p id=%s\n", - __FUNCTION__, ch, ch->id); - - if (dev == NULL) { - printk(KERN_INFO "ctcmpc_channel_action %i dev=NULL\n", - action); - rc = 1; - goto done; - } - - priv = dev->priv; - if (priv == NULL) { - printk(KERN_INFO - "ctcmpc_channel_action%i priv=NULL, dev=%s\n", - action, dev->name); - rc = 2; - goto done; - } - - grp = priv->mpcg; + struct net_device *dev = ch->netdev; + struct ctcm_priv *priv = dev->priv; + struct mpc_group *grp = priv->mpcg; if (grp == NULL) { - printk(KERN_INFO "ctcmpc: %s()%i mpcgroup=NULL, dev=%s\n", - __FUNCTION__, action, dev->name); - rc = 3; - goto done; + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): No MPC group", + CTCM_FUNTAIL, dev->name); + return; } - ctcm_pr_info( - "ctcmpc: %s() %i(): Grp:%s total_channel_paths=%i " - "active_channels read=%i, write=%i\n", - __FUNCTION__, - action, - fsm_getstate_str(grp->fsm), - grp->num_channel_paths, - grp->active_channels[READ], - grp->active_channels[WRITE]); + CTCM_PR_DEBUG("enter %s: ch=0x%p id=%s\n", __func__, ch, ch->id); + + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_NOTICE, + "%s: %i / Grp:%s total_channels=%i, active_channels: " + "read=%i, write=%i\n", __func__, action, + fsm_getstate_str(grp->fsm), grp->num_channel_paths, + grp->active_channels[READ], grp->active_channels[WRITE]); if ((action == MPC_CHANNEL_ADD) && (ch->in_mpcgroup == 0)) { grp->num_channel_paths++; @@ -1062,10 +977,11 @@ int mpc_channel_action(struct channel *ch, int direction, int action) ch->xid_skb = __dev_alloc_skb(MPC_BUFSIZE_DEFAULT, GFP_ATOMIC | GFP_DMA); if (ch->xid_skb == NULL) { - printk(KERN_INFO "ctcmpc: %s()" - "Couldn't alloc ch xid_skb\n", __FUNCTION__); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): Couldn't alloc ch xid_skb\n", + CTCM_FUNTAIL, dev->name); fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); - return 1; + return; } ch->xid_skb_data = ch->xid_skb->data; ch->xid_th = (struct th_header *)ch->xid_skb->data; @@ -1097,8 +1013,9 @@ int mpc_channel_action(struct channel *ch, int direction, int action) (grp->active_channels[WRITE] > 0) && (fsm_getstate(grp->fsm) < MPCG_STATE_XID2INITW)) { fsm_newstate(grp->fsm, MPCG_STATE_XID2INITW); - printk(KERN_NOTICE "ctcmpc: %s MPC GROUP " - "CHANNELS ACTIVE\n", dev->name); + CTCM_DBF_TEXT_(MPC_SETUP, CTC_DBF_NOTICE, + "%s: %s: MPC GROUP CHANNELS ACTIVE\n", + __func__, dev->name); } } else if ((action == MPC_CHANNEL_REMOVE) && (ch->in_mpcgroup == 1)) { @@ -1119,25 +1036,14 @@ int mpc_channel_action(struct channel *ch, int direction, int action) (grp->active_channels[READ] > 0))) fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); } - done: + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_DEBUG, + "exit %s: %i / Grp:%s total_channels=%i, active_channels: " + "read=%i, write=%i\n", __func__, action, + fsm_getstate_str(grp->fsm), grp->num_channel_paths, + grp->active_channels[READ], grp->active_channels[WRITE]); - if (do_debug) { - ctcm_pr_debug( - "ctcmpc: %s() %i Grp:%s ttl_chan_paths=%i " - "active_chans read=%i, write=%i\n", - __FUNCTION__, - action, - fsm_getstate_str(grp->fsm), - grp->num_channel_paths, - grp->active_channels[READ], - grp->active_channels[WRITE]); - - ctcm_pr_debug("ctcmpc exit : %s(): ch=0x%p id=%s\n", - __FUNCTION__, ch, ch->id); - } - return rc; - + CTCM_PR_DEBUG("exit %s: ch=0x%p id=%s\n", __func__, ch, ch->id); } /** @@ -1163,9 +1069,8 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) int skblen; int sendrc = 0; - if (do_debug) - ctcm_pr_debug("ctcmpc enter: %s() %s cp:%i ch:%s\n", - __FUNCTION__, dev->name, smp_processor_id(), ch->id); + CTCM_PR_DEBUG("ctcmpc enter: %s() %s cp:%i ch:%s\n", + __func__, dev->name, smp_processor_id(), ch->id); header = (struct th_header *)pskb->data; if ((header->th_seg == 0) && @@ -1174,21 +1079,16 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) (header->th_seq_num == 0)) /* nothing for us */ goto done; - if (do_debug_data) { - ctcm_pr_debug("ctcmpc: %s() th_header\n", __FUNCTION__); - ctcmpc_dumpit((char *)header, TH_HEADER_LENGTH); - ctcm_pr_debug("ctcmpc: %s() pskb len: %04x \n", - __FUNCTION__, pskb->len); - } + CTCM_PR_DBGDATA("%s: th_header\n", __func__); + CTCM_D3_DUMP((char *)header, TH_HEADER_LENGTH); + CTCM_PR_DBGDATA("%s: pskb len: %04x \n", __func__, pskb->len); pskb->dev = dev; pskb->ip_summed = CHECKSUM_UNNECESSARY; skb_pull(pskb, TH_HEADER_LENGTH); if (likely(header->th_ch_flag == TH_HAS_PDU)) { - if (do_debug_data) - ctcm_pr_debug("ctcmpc: %s() came into th_has_pdu\n", - __FUNCTION__); + CTCM_PR_DBGDATA("%s: came into th_has_pdu\n", __func__); if ((fsm_getstate(grp->fsm) == MPCG_STATE_FLOWC) || ((fsm_getstate(grp->fsm) == MPCG_STATE_READY) && (header->th_seq_num != ch->th_seq_num + 1) && @@ -1202,33 +1102,29 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) grp->out_of_sequence += 1; __skb_push(pskb, TH_HEADER_LENGTH); skb_queue_tail(&ch->io_queue, pskb); - if (do_debug_data) - ctcm_pr_debug("ctcmpc: %s() th_seq_num " - "expect:%08x got:%08x\n", __FUNCTION__, - ch->th_seq_num + 1, header->th_seq_num); + CTCM_PR_DBGDATA("%s: th_seq_num expect:%08x " + "got:%08x\n", __func__, + ch->th_seq_num + 1, header->th_seq_num); return; } grp->out_of_sequence = 0; ch->th_seq_num = header->th_seq_num; - if (do_debug_data) - ctcm_pr_debug("ctcmpc: %s() FromVTAM_th_seq=%08x\n", - __FUNCTION__, ch->th_seq_num); + CTCM_PR_DBGDATA("ctcmpc: %s() FromVTAM_th_seq=%08x\n", + __func__, ch->th_seq_num); if (unlikely(fsm_getstate(grp->fsm) != MPCG_STATE_READY)) goto done; pdu_last_seen = 0; while ((pskb->len > 0) && !pdu_last_seen) { curr_pdu = (struct pdu *)pskb->data; - if (do_debug_data) { - ctcm_pr_debug("ctcm: %s() pdu_header\n", - __FUNCTION__); - ctcmpc_dumpit((char *)pskb->data, - PDU_HEADER_LENGTH); - ctcm_pr_debug("ctcm: %s() pskb len: %04x \n", - __FUNCTION__, pskb->len); - } + + CTCM_PR_DBGDATA("%s: pdu_header\n", __func__); + CTCM_D3_DUMP((char *)pskb->data, PDU_HEADER_LENGTH); + CTCM_PR_DBGDATA("%s: pskb len: %04x \n", + __func__, pskb->len); + skb_pull(pskb, PDU_HEADER_LENGTH); if (curr_pdu->pdu_flag & PDU_LAST) @@ -1239,46 +1135,39 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) pskb->protocol = htons(ETH_P_SNA_DIX); if ((pskb->len <= 0) || (pskb->len > ch->max_bufsize)) { - printk(KERN_INFO - "%s Illegal packet size %d " - "received " - "dropping\n", dev->name, - pskb->len); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): Dropping packet with " + "illegal siize %d", + CTCM_FUNTAIL, dev->name, pskb->len); + priv->stats.rx_dropped++; priv->stats.rx_length_errors++; goto done; } skb_reset_mac_header(pskb); new_len = curr_pdu->pdu_offset; - if (do_debug_data) - ctcm_pr_debug("ctcmpc: %s() new_len: %04x \n", - __FUNCTION__, new_len); + CTCM_PR_DBGDATA("%s: new_len: %04x \n", + __func__, new_len); if ((new_len == 0) || (new_len > pskb->len)) { /* should never happen */ /* pskb len must be hosed...bail out */ - printk(KERN_INFO - "ctcmpc: %s(): invalid pdu" - " offset of %04x - data may be" - "lost\n", __FUNCTION__, new_len); - goto done; + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): non valid pdu_offset: %04x", + /* "data may be lost", */ + CTCM_FUNTAIL, dev->name, new_len); + goto done; } skb = __dev_alloc_skb(new_len+4, GFP_ATOMIC); if (!skb) { - printk(KERN_INFO - "ctcm: %s Out of memory in " - "%s()- request-len:%04x \n", - dev->name, - __FUNCTION__, - new_len+4); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): MEMORY allocation error", + CTCM_FUNTAIL, dev->name); priv->stats.rx_dropped++; - fsm_event(grp->fsm, - MPCG_EVENT_INOP, dev); + fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); goto done; } - - memcpy(skb_put(skb, new_len), - pskb->data, new_len); + memcpy(skb_put(skb, new_len), pskb->data, new_len); skb_reset_mac_header(skb); skb->dev = pskb->dev; @@ -1287,17 +1176,14 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) *((__u32 *) skb_push(skb, 4)) = ch->pdu_seq; ch->pdu_seq++; - if (do_debug_data) - ctcm_pr_debug("%s: ToDCM_pdu_seq= %08x\n", - __FUNCTION__, ch->pdu_seq); - - ctcm_pr_debug("ctcm: %s() skb:%0lx " - "skb len: %d \n", __FUNCTION__, - (unsigned long)skb, skb->len); if (do_debug_data) { - ctcm_pr_debug("ctcmpc: %s() up to 32 bytes" - " of pdu_data sent\n", - __FUNCTION__); + ctcm_pr_debug("%s: ToDCM_pdu_seq= %08x\n", + __func__, ch->pdu_seq); + ctcm_pr_debug("%s: skb:%0lx " + "skb len: %d \n", __func__, + (unsigned long)skb, skb->len); + ctcm_pr_debug("%s: up to 32 bytes " + "of pdu_data sent\n", __func__); ctcmpc_dump32((char *)skb->data, skb->len); } @@ -1316,8 +1202,8 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) mpcginfo->ch = ch; mpcginfo->th = header; mpcginfo->skb = pskb; - ctcm_pr_debug("ctcmpc: %s() Not PDU - may be control pkt\n", - __FUNCTION__); + CTCM_PR_DEBUG("%s: Not PDU - may be control pkt\n", + __func__); /* it's a sweep? */ sweep = (struct th_sweep *)pskb->data; mpcginfo->sweep = sweep; @@ -1333,8 +1219,9 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb) } else if (header->th_blk_flag == TH_DISCONTACT) fsm_event(grp->fsm, MPCG_EVENT_DISCONC, mpcginfo); else if (header->th_seq_num != 0) { - printk(KERN_INFO "%s unexpected packet" - " expected control pkt\n", dev->name); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): control pkt expected\n", + CTCM_FUNTAIL, dev->name); priv->stats.rx_dropped++; /* mpcginfo only used for non-data transfers */ kfree(mpcginfo); @@ -1347,13 +1234,12 @@ done: dev_kfree_skb_any(pskb); if (sendrc == NET_RX_DROP) { printk(KERN_WARNING "%s %s() NETWORK BACKLOG EXCEEDED" - " - PACKET DROPPED\n", dev->name, __FUNCTION__); + " - PACKET DROPPED\n", dev->name, __func__); fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); } - if (do_debug) - ctcm_pr_debug("ctcmpc exit : %s %s(): ch=0x%p id=%s\n", - dev->name, __FUNCTION__, ch, ch->id); + CTCM_PR_DEBUG("exit %s: %s: ch=0x%p id=%s\n", + __func__, dev->name, ch, ch->id); } /** @@ -1366,15 +1252,14 @@ done: */ void ctcmpc_bh(unsigned long thischan) { - struct channel *ch = (struct channel *)thischan; + struct channel *ch = (struct channel *)thischan; struct sk_buff *skb; - struct net_device *dev = ch->netdev; - struct ctcm_priv *priv = dev->priv; - struct mpc_group *grp = priv->mpcg; + struct net_device *dev = ch->netdev; + struct ctcm_priv *priv = dev->priv; + struct mpc_group *grp = priv->mpcg; - if (do_debug) - ctcm_pr_debug("%s cp:%i enter: %s() %s\n", - dev->name, smp_processor_id(), __FUNCTION__, ch->id); + CTCM_PR_DEBUG("%s cp:%i enter: %s() %s\n", + dev->name, smp_processor_id(), __func__, ch->id); /* caller has requested driver to throttle back */ while ((fsm_getstate(grp->fsm) != MPCG_STATE_FLOWC) && (skb = skb_dequeue(&ch->io_queue))) { @@ -1390,9 +1275,8 @@ void ctcmpc_bh(unsigned long thischan) if (skb == skb_peek(&ch->io_queue)) break; } - if (do_debug) - ctcm_pr_debug("ctcmpc exit : %s %s(): ch=0x%p id=%s\n", - dev->name, __FUNCTION__, ch, ch->id); + CTCM_PR_DEBUG("exit %s: %s: ch=0x%p id=%s\n", + __func__, dev->name, ch, ch->id); return; } @@ -1403,16 +1287,16 @@ struct mpc_group *ctcmpc_init_mpc_group(struct ctcm_priv *priv) { struct mpc_group *grp; - CTCM_DBF_TEXT(MPC_SETUP, 3, __FUNCTION__); + CTCM_DBF_TEXT_(MPC_SETUP, CTC_DBF_INFO, + "Enter %s(%p)", CTCM_FUNTAIL, priv); grp = kzalloc(sizeof(struct mpc_group), GFP_KERNEL); if (grp == NULL) return NULL; - grp->fsm = - init_fsm("mpcg", mpcg_state_names, mpcg_event_names, - MPCG_NR_STATES, MPCG_NR_EVENTS, mpcg_fsm, - mpcg_fsm_len, GFP_KERNEL); + grp->fsm = init_fsm("mpcg", mpcg_state_names, mpcg_event_names, + MPCG_NR_STATES, MPCG_NR_EVENTS, mpcg_fsm, + mpcg_fsm_len, GFP_KERNEL); if (grp->fsm == NULL) { kfree(grp); return NULL; @@ -1424,7 +1308,6 @@ struct mpc_group *ctcmpc_init_mpc_group(struct ctcm_priv *priv) grp->xid_skb = __dev_alloc_skb(MPC_BUFSIZE_DEFAULT, GFP_ATOMIC | GFP_DMA); if (grp->xid_skb == NULL) { - printk(KERN_INFO "Couldn't alloc MPCgroup xid_skb\n"); kfree_fsm(grp->fsm); kfree(grp); return NULL; @@ -1435,7 +1318,7 @@ struct mpc_group *ctcmpc_init_mpc_group(struct ctcm_priv *priv) memcpy(skb_put(grp->xid_skb, TH_HEADER_LENGTH), &thnorm, TH_HEADER_LENGTH); - grp->xid = (struct xid2 *) skb_tail_pointer(grp->xid_skb); + grp->xid = (struct xid2 *)skb_tail_pointer(grp->xid_skb); memcpy(skb_put(grp->xid_skb, XID2_LENGTH), &init_xid, XID2_LENGTH); grp->xid->xid2_adj_id = jiffies | 0xfff00000; grp->xid->xid2_sender_id = jiffies; @@ -1446,7 +1329,6 @@ struct mpc_group *ctcmpc_init_mpc_group(struct ctcm_priv *priv) grp->rcvd_xid_skb = __dev_alloc_skb(MPC_BUFSIZE_DEFAULT, GFP_ATOMIC|GFP_DMA); if (grp->rcvd_xid_skb == NULL) { - printk(KERN_INFO "Couldn't alloc MPCgroup rcvd_xid_skb\n"); kfree_fsm(grp->fsm); dev_kfree_skb(grp->xid_skb); kfree(grp); @@ -1492,32 +1374,27 @@ static void mpc_action_go_inop(fsm_instance *fi, int event, void *arg) int rc = 0; struct channel *wch, *rch; - if (dev == NULL) { - printk(KERN_INFO "%s() dev=NULL\n", __FUNCTION__); - return; - } - - ctcm_pr_debug("ctcmpc enter: %s %s()\n", dev->name, __FUNCTION__); + BUG_ON(dev == NULL); + CTCM_PR_DEBUG("Enter %s: %s\n", __func__, dev->name); priv = dev->priv; grp = priv->mpcg; grp->flow_off_called = 0; - fsm_deltimer(&grp->timer); - if (grp->channels_terminating) - goto done; + return; grp->channels_terminating = 1; - grp->saved_state = fsm_getstate(grp->fsm); fsm_newstate(grp->fsm, MPCG_STATE_INOP); if (grp->saved_state > MPCG_STATE_XID7INITF) - printk(KERN_NOTICE "%s:MPC GROUP INOPERATIVE\n", dev->name); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_NOTICE, + "%s(%s): MPC GROUP INOPERATIVE", + CTCM_FUNTAIL, dev->name); if ((grp->saved_state != MPCG_STATE_RESET) || /* dealloc_channel has been called */ - ((grp->saved_state == MPCG_STATE_RESET) && - (grp->port_persist == 0))) + ((grp->saved_state == MPCG_STATE_RESET) && + (grp->port_persist == 0))) fsm_deltimer(&priv->restart_timer); wch = priv->channel[WRITE]; @@ -1567,29 +1444,24 @@ static void mpc_action_go_inop(fsm_instance *fi, int event, void *arg) /* This can result in INOP of VTAM PU due to halting of */ /* outstanding IO which causes a sense to be returned */ /* Only about 3 senses are allowed and then IOS/VTAM will*/ - /* ebcome unreachable without manual intervention */ - if ((grp->port_persist == 1) || (grp->alloc_called)) { + /* become unreachable without manual intervention */ + if ((grp->port_persist == 1) || (grp->alloc_called)) { grp->alloc_called = 0; fsm_deltimer(&priv->restart_timer); - fsm_addtimer(&priv->restart_timer, - 500, - DEV_EVENT_RESTART, - dev); + fsm_addtimer(&priv->restart_timer, 500, DEV_EVENT_RESTART, dev); fsm_newstate(grp->fsm, MPCG_STATE_RESET); if (grp->saved_state > MPCG_STATE_XID7INITF) - printk(KERN_NOTICE "%s:MPC GROUP RECOVERY SCHEDULED\n", - dev->name); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_ALWAYS, + "%s(%s): MPC GROUP RECOVERY SCHEDULED", + CTCM_FUNTAIL, dev->name); } else { fsm_deltimer(&priv->restart_timer); fsm_addtimer(&priv->restart_timer, 500, DEV_EVENT_STOP, dev); fsm_newstate(grp->fsm, MPCG_STATE_RESET); - printk(KERN_NOTICE "%s:MPC GROUP RECOVERY NOT ATTEMPTED\n", - dev->name); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_ALWAYS, + "%s(%s): NO MPC GROUP RECOVERY ATTEMPTED", + CTCM_FUNTAIL, dev->name); } - -done: - ctcm_pr_debug("ctcmpc exit:%s %s()\n", dev->name, __FUNCTION__); - return; } /** @@ -1609,12 +1481,7 @@ static void mpc_action_timeout(fsm_instance *fi, int event, void *arg) struct channel *wch; struct channel *rch; - CTCM_DBF_TEXT(MPC_TRACE, 6, __FUNCTION__); - - if (dev == NULL) { - CTCM_DBF_TEXT_(MPC_ERROR, 4, "%s: dev=NULL\n", __FUNCTION__); - return; - } + BUG_ON(dev == NULL); priv = dev->priv; grp = priv->mpcg; @@ -1633,8 +1500,9 @@ static void mpc_action_timeout(fsm_instance *fi, int event, void *arg) fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); } - CTCM_DBF_TEXT_(MPC_TRACE, 6, "%s: dev=%s exit", - __FUNCTION__, dev->name); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_DEBUG, + "%s: dev=%s exit", + CTCM_FUNTAIL, dev->name); return; } @@ -1646,25 +1514,25 @@ void mpc_action_discontact(fsm_instance *fi, int event, void *arg) { struct mpcg_info *mpcginfo = arg; struct channel *ch = mpcginfo->ch; - struct net_device *dev = ch->netdev; - struct ctcm_priv *priv = dev->priv; - struct mpc_group *grp = priv->mpcg; + struct net_device *dev; + struct ctcm_priv *priv; + struct mpc_group *grp; - if (ch == NULL) { - printk(KERN_INFO "%s() ch=NULL\n", __FUNCTION__); - return; - } - if (ch->netdev == NULL) { - printk(KERN_INFO "%s() dev=NULL\n", __FUNCTION__); - return; + if (ch) { + dev = ch->netdev; + if (dev) { + priv = dev->priv; + if (priv) { + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_NOTICE, + "%s: %s: %s\n", + CTCM_FUNTAIL, dev->name, ch->id); + grp = priv->mpcg; + grp->send_qllc_disc = 1; + fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); + } + } } - ctcm_pr_debug("ctcmpc enter: %s %s()\n", dev->name, __FUNCTION__); - - grp->send_qllc_disc = 1; - fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); - - ctcm_pr_debug("ctcmpc exit: %s %s()\n", dev->name, __FUNCTION__); return; } @@ -1675,26 +1543,9 @@ void mpc_action_discontact(fsm_instance *fi, int event, void *arg) */ void mpc_action_send_discontact(unsigned long thischan) { - struct channel *ch; - struct net_device *dev; - struct ctcm_priv *priv; - struct mpc_group *grp; - int rc = 0; - unsigned long saveflags; - - ch = (struct channel *)thischan; - dev = ch->netdev; - priv = dev->priv; - grp = priv->mpcg; - - ctcm_pr_info("ctcmpc: %s cp:%i enter: %s() GrpState:%s ChState:%s\n", - dev->name, - smp_processor_id(), - __FUNCTION__, - fsm_getstate_str(grp->fsm), - fsm_getstate_str(ch->fsm)); - saveflags = 0; /* avoids compiler warning with - spin_unlock_irqrestore */ + int rc; + struct channel *ch = (struct channel *)thischan; + unsigned long saveflags = 0; spin_lock_irqsave(get_ccwdev_lock(ch->cdev), saveflags); rc = ccw_device_start(ch->cdev, &ch->ccw[15], @@ -1702,16 +1553,9 @@ void mpc_action_send_discontact(unsigned long thischan) spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags); if (rc != 0) { - ctcm_pr_info("ctcmpc: %s() ch:%s IO failed \n", - __FUNCTION__, - ch->id); - ctcm_ccw_check_rc(ch, rc, "send discontact"); - /* Not checking return code value here */ - /* Making best effort to notify partner*/ - /* that MPC Group is going down */ + ctcm_ccw_check_rc(ch, rc, (char *)__func__); } - ctcm_pr_debug("ctcmpc exit: %s %s()\n", dev->name, __FUNCTION__); return; } @@ -1723,49 +1567,50 @@ void mpc_action_send_discontact(unsigned long thischan) */ static int mpc_validate_xid(struct mpcg_info *mpcginfo) { - struct channel *ch = mpcginfo->ch; - struct net_device *dev = ch->netdev; + struct channel *ch = mpcginfo->ch; + struct net_device *dev = ch->netdev; struct ctcm_priv *priv = dev->priv; struct mpc_group *grp = priv->mpcg; - struct xid2 *xid = mpcginfo->xid; - int failed = 0; - int rc = 0; - __u64 our_id, their_id = 0; - int len; - - len = TH_HEADER_LENGTH + PDU_HEADER_LENGTH; + struct xid2 *xid = mpcginfo->xid; + int rc = 0; + __u64 our_id = 0; + __u64 their_id = 0; + int len = TH_HEADER_LENGTH + PDU_HEADER_LENGTH; - ctcm_pr_debug("ctcmpc enter: %s()\n", __FUNCTION__); + CTCM_PR_DEBUG("Enter %s: xid=%p\n", __func__, xid); - if (mpcginfo->xid == NULL) { - printk(KERN_INFO "%s() xid=NULL\n", __FUNCTION__); + if (xid == NULL) { rc = 1; - goto done; + /* XID REJECTED: xid == NULL */ + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): xid = NULL", + CTCM_FUNTAIL, ch->id); + goto done; } - ctcm_pr_debug("ctcmpc : %s xid received()\n", __FUNCTION__); - ctcmpc_dumpit((char *)mpcginfo->xid, XID2_LENGTH); + CTCM_D3_DUMP((char *)xid, XID2_LENGTH); /*the received direction should be the opposite of ours */ if (((CHANNEL_DIRECTION(ch->flags) == READ) ? XID2_WRITE_SIDE : XID2_READ_SIDE) != xid->xid2_dlc_type) { - failed = 1; - printk(KERN_INFO "ctcmpc:%s() XID REJECTED - READ-WRITE CH " - "Pairing Invalid \n", __FUNCTION__); + rc = 2; + /* XID REJECTED: r/w channel pairing mismatch */ + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): r/w channel pairing mismatch", + CTCM_FUNTAIL, ch->id); + goto done; } if (xid->xid2_dlc_type == XID2_READ_SIDE) { - ctcm_pr_debug("ctcmpc: %s(): grpmaxbuf:%d xid2buflen:%d\n", - __FUNCTION__, grp->group_max_buflen, - xid->xid2_buf_len); + CTCM_PR_DEBUG("%s: grpmaxbuf:%d xid2buflen:%d\n", __func__, + grp->group_max_buflen, xid->xid2_buf_len); - if (grp->group_max_buflen == 0 || - grp->group_max_buflen > xid->xid2_buf_len - len) + if (grp->group_max_buflen == 0 || grp->group_max_buflen > + xid->xid2_buf_len - len) grp->group_max_buflen = xid->xid2_buf_len - len; } - - if (grp->saved_xid2 == NULL) { + if (grp->saved_xid2 == NULL) { grp->saved_xid2 = (struct xid2 *)skb_tail_pointer(grp->rcvd_xid_skb); @@ -1786,49 +1631,54 @@ static int mpc_validate_xid(struct mpcg_info *mpcginfo) /* lower id assume the xside role */ if (our_id < their_id) { grp->roll = XSIDE; - ctcm_pr_debug("ctcmpc :%s() WE HAVE LOW ID-" - "TAKE XSIDE\n", __FUNCTION__); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_NOTICE, + "%s(%s): WE HAVE LOW ID - TAKE XSIDE", + CTCM_FUNTAIL, ch->id); } else { grp->roll = YSIDE; - ctcm_pr_debug("ctcmpc :%s() WE HAVE HIGH ID-" - "TAKE YSIDE\n", __FUNCTION__); + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_NOTICE, + "%s(%s): WE HAVE HIGH ID - TAKE YSIDE", + CTCM_FUNTAIL, ch->id); } } else { if (xid->xid2_flag4 != grp->saved_xid2->xid2_flag4) { - failed = 1; - printk(KERN_INFO "%s XID REJECTED - XID Flag Byte4\n", - __FUNCTION__); + rc = 3; + /* XID REJECTED: xid flag byte4 mismatch */ + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): xid flag byte4 mismatch", + CTCM_FUNTAIL, ch->id); } if (xid->xid2_flag2 == 0x40) { - failed = 1; - printk(KERN_INFO "%s XID REJECTED - XID NOGOOD\n", - __FUNCTION__); + rc = 4; + /* XID REJECTED - xid NOGOOD */ + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): xid NOGOOD", + CTCM_FUNTAIL, ch->id); } if (xid->xid2_adj_id != grp->saved_xid2->xid2_adj_id) { - failed = 1; - printk(KERN_INFO "%s XID REJECTED - " - "Adjacent Station ID Mismatch\n", - __FUNCTION__); + rc = 5; + /* XID REJECTED - Adjacent Station ID Mismatch */ + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): Adjacent Station ID Mismatch", + CTCM_FUNTAIL, ch->id); } if (xid->xid2_sender_id != grp->saved_xid2->xid2_sender_id) { - failed = 1; - printk(KERN_INFO "%s XID REJECTED - " - "Sender Address Mismatch\n", __FUNCTION__); - + rc = 6; + /* XID REJECTED - Sender Address Mismatch */ + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): Sender Address Mismatch", + CTCM_FUNTAIL, ch->id); } } - if (failed) { +done: + if (rc) { ctcm_pr_info("ctcmpc : %s() failed\n", __FUNCTION__); priv->xid->xid2_flag2 = 0x40; grp->saved_xid2->xid2_flag2 = 0x40; - rc = 1; } -done: - - ctcm_pr_debug("ctcmpc exit: %s()\n", __FUNCTION__); return rc; } @@ -1839,46 +1689,20 @@ done: static void mpc_action_side_xid(fsm_instance *fsm, void *arg, int side) { struct channel *ch = arg; - struct ctcm_priv *priv; - struct mpc_group *grp = NULL; - struct net_device *dev = NULL; int rc = 0; int gotlock = 0; unsigned long saveflags = 0; /* avoids compiler warning with - spin_unlock_irqrestore */ - - if (ch == NULL) { - printk(KERN_INFO "%s ch=NULL\n", __FUNCTION__); - goto done; - } - - if (do_debug) - ctcm_pr_debug("ctcmpc enter: %s(): cp=%i ch=0x%p id=%s\n", - __FUNCTION__, smp_processor_id(), ch, ch->id); - - dev = ch->netdev; - if (dev == NULL) { - printk(KERN_INFO "%s dev=NULL\n", __FUNCTION__); - goto done; - } - - priv = dev->priv; - if (priv == NULL) { - printk(KERN_INFO "%s priv=NULL\n", __FUNCTION__); - goto done; - } + spin_unlock_irqrestore */ - grp = priv->mpcg; - if (grp == NULL) { - printk(KERN_INFO "%s grp=NULL\n", __FUNCTION__); - goto done; - } + CTCM_PR_DEBUG("Enter %s: cp=%i ch=0x%p id=%s\n", + __func__, smp_processor_id(), ch, ch->id); if (ctcm_checkalloc_buffer(ch)) goto done; - /* skb data-buffer referencing: */ - + /* + * skb data-buffer referencing: + */ ch->trans_skb->data = ch->trans_skb_data; skb_reset_tail_pointer(ch->trans_skb); ch->trans_skb->len = 0; @@ -1911,22 +1735,22 @@ static void mpc_action_side_xid(fsm_instance *fsm, void *arg, int side) ch->ccw[8].count = 0; ch->ccw[8].cda = 0x00; + if (!(ch->xid_th && ch->xid && ch->xid_id)) + CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_INFO, + "%s(%s): xid_th=%p, xid=%p, xid_id=%p", + CTCM_FUNTAIL, ch->id, ch->xid_th, ch->xid, ch->xid_id); + if (side == XSIDE) { /* mpc_action_xside_xid */ - if (ch->xid_th == NULL) { - printk(KERN_INFO "%s ch->xid_th=NULL\n", __FUNCTION__); - goto done; - } + if (ch->xid_th == NULL) + goto done; ch->ccw[9].cmd_code = CCW_CMD_WRITE; ch->ccw[9].flags = CCW_FLAG_SLI | CCW_FLAG_CC; ch->ccw[9].count = TH_HEADER_LENGTH; ch->ccw[9].cda = virt_to_phys(ch->xid_th); - if (ch->xid == NULL) { - printk(KERN_INFO "%s ch->xid=NULL\n", __FUNCTION__); - goto done; - } - + if (ch->xid == NULL) + goto done; ch->ccw[10].cmd_code = CCW_CMD_WRITE; ch->ccw[10].flags = CCW_FLAG_SLI | CCW_FLAG_CC; ch->ccw[10].count = XID2_LENGTH; @@ -1956,28 +1780,22 @@ static void mpc_action_side_xid(fsm_instance *fsm, void *arg, int side) ch->ccw[10].count = XID2_LENGTH; ch->ccw[10].cda = virt_to_phys(ch->rcvd_xid); - if (ch->xid_th == NULL) { - printk(KERN_INFO "%s ch->xid_th=NULL\n", __FUNCTION__); - goto done; - } + if (ch->xid_th == NULL) + goto done; ch->ccw[11].cmd_code = CCW_CMD_WRITE; ch->ccw[11].flags = CCW_FLAG_SLI | CCW_FLAG_CC; ch->ccw[11].count = TH_HEADER_LENGTH; ch->ccw[11].cda = virt_to_phys(ch->xid_th); - if (ch->xid == NULL) { - printk(KERN_INFO "%s ch->xid=NULL\n", __FUNCTION__); - goto done; - } + if (ch->xid == NULL) + goto done; ch->ccw[12].cmd_code = CCW_CMD_WRITE; ch->ccw[12].flags = CCW_FLAG_SLI | CCW_FLAG_CC; ch->ccw[12].count = XID2_LENGTH; ch->ccw[12].cda = virt_to_phys(ch->xid); - if (ch->xid_id == NULL) { - printk(KERN_INFO "%s ch->xid_id=NULL\n", __FUNCTION__); - goto done; - } + if (ch->xid_id == NULL) + goto done; ch->ccw[13].cmd_code = CCW_CMD_WRITE; ch->ccw[13].cda = virt_to_phys(ch->xid_id); @@ -1990,12 +1808,11 @@ static void mpc_action_side_xid(fsm_instance *fsm, void *arg, int side) ch->ccw[14].count = 0; ch->ccw[14].cda = 0; - if (do_debug_ccw) - ctcmpc_dumpit((char *)&ch->ccw[8], sizeof(struct ccw1) * 7); + CTCM_CCW_DUMP((char *)&ch->ccw[8], sizeof(struct ccw1) * 7); + CTCM_D3_DUMP((char *)ch->xid_th, TH_HEADER_LENGTH); + CTCM_D3_DUMP((char *)ch->xid, XID2_LENGTH); + CTCM_D3_DUMP((char *)ch->xid_id, 4); - ctcmpc_dumpit((char *)ch->xid_th, TH_HEADER_LENGTH); - ctcmpc_dumpit((char *)ch->xid, XID2_LENGTH); - ctcmpc_dumpit((char *)ch->xid_id, 4); if (!in_irq()) { /* Such conditional locking is a known problem for * sparse because its static undeterministic. @@ -2012,16 +1829,13 @@ static void mpc_action_side_xid(fsm_instance *fsm, void *arg, int side) spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags); if (rc != 0) { - ctcm_pr_info("ctcmpc: %s() ch:%s IO failed \n", - __FUNCTION__, ch->id); ctcm_ccw_check_rc(ch, rc, (side == XSIDE) ? "x-side XID" : "y-side XID"); } done: - if (do_debug) - ctcm_pr_debug("ctcmpc exit : %s(): ch=0x%p id=%s\n", - __FUNCTION__, ch, ch->id); + CTCM_PR_DEBUG("Exit %s: ch=0x%p id=%s\n", + __func__, ch, ch->id); return; } @@ -2050,41 +1864,19 @@ static void mpc_action_yside_xid(fsm_instance *fsm, int event, void *arg) */ static void mpc_action_doxid0(fsm_instance *fsm, int event, void *arg) { - struct channel *ch = arg; - struct ctcm_priv *priv; - struct mpc_group *grp = NULL; - struct net_device *dev = NULL; - - if (do_debug) - ctcm_pr_debug("ctcmpc enter: %s(): cp=%i ch=0x%p id=%s\n", - __FUNCTION__, smp_processor_id(), ch, ch->id); - - if (ch == NULL) { - printk(KERN_WARNING "%s ch=NULL\n", __FUNCTION__); - goto done; - } - - dev = ch->netdev; - if (dev == NULL) { - printk(KERN_WARNING "%s dev=NULL\n", __FUNCTION__); - goto done; - } - - priv = dev->priv; - if (priv == NULL) { - printk(KERN_WARNING "%s priv=NULL\n", __FUNCTION__); - goto done; - } + struct channel *ch = arg; + struct net_device *dev = ch->netdev; + struct ctcm_priv *priv = dev->priv; + struct mpc_group *grp = priv->mpcg; - grp = priv->mpcg; - if (grp == NULL) { - printk(KERN_WARNING "%s grp=NULL\n", __FUNCTION__); - goto done; - } + CTCM_PR_DEBUG("Enter %s: cp=%i ch=0x%p id=%s\n", + __func__, smp_processor_id(), ch, ch->id); if (ch->xid == NULL) { - printk(KERN_WARNING "%s ch-xid=NULL\n", __FUNCTION__); - goto done; + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): ch->xid == NULL", + CTCM_FUNTAIL, dev->name); + return; } fsm_newstate(ch->fsm, CH_XID0_INPROGRESS); @@ -2104,12 +1896,7 @@ static void mpc_action_doxid0(fsm_instance *fsm, int event, void *arg) fsm_event(grp->fsm, MPCG_EVENT_DOIO, ch); -done: - if (do_debug) - ctcm_pr_debug("ctcmpc exit : %s(): ch=0x%p id=%s\n", - __FUNCTION__, ch, ch->id); return; - } /* @@ -2119,32 +1906,16 @@ done: static void mpc_action_doxid7(fsm_instance *fsm, int event, void *arg) { struct net_device *dev = arg; - struct ctcm_priv *priv = NULL; - struct mpc_group *grp = NULL; + struct ctcm_priv *priv = dev->priv; + struct mpc_group *grp = NULL; int direction; - int rc = 0; int send = 0; - ctcm_pr_debug("ctcmpc enter: %s() \n", __FUNCTION__); - - if (dev == NULL) { - printk(KERN_INFO "%s dev=NULL \n", __FUNCTION__); - rc = 1; - goto done; - } - - priv = dev->priv; - if (priv == NULL) { - printk(KERN_INFO "%s priv=NULL \n", __FUNCTION__); - rc = 1; - goto done; - } - - grp = priv->mpcg; + if (priv) + grp = priv->mpcg; if (grp == NULL) { - printk(KERN_INFO "%s grp=NULL \n", __FUNCTION__); - rc = 1; - goto done; + fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); + return; } for (direction = READ; direction <= WRITE; direction++) { @@ -2199,11 +1970,6 @@ static void mpc_action_doxid7(fsm_instance *fsm, int event, void *arg) fsm_event(grp->fsm, MPCG_EVENT_DOIO, ch); } -done: - - if (rc != 0) - fsm_event(grp->fsm, MPCG_EVENT_INOP, dev); - return; } @@ -2214,24 +1980,15 @@ done: static void mpc_action_rcvd_xid0(fsm_instance *fsm, int event, void *arg) { - struct mpcg_info *mpcginfo = arg; - struct channel *ch = mpcginfo->ch; - struct net_device *dev = ch->netdev; - struct ctcm_priv *priv; - struct mpc_group *grp; - - if (do_debug) - ctcm_pr_debug("ctcmpc enter: %s(): cp=%i ch=0x%p id=%s\n", - __FUNCTION__, smp_processor_id(), ch, ch->id); - - priv = dev->priv; - grp = priv->mpcg; + struct mpcg_info *mpcginfo = arg; + struct channel *ch = mpcginfo->ch; + struct net_device *dev = ch->netdev; + struct ctcm_priv *priv = dev->priv; + struct mpc_group *grp = priv->mpcg; - ctcm_pr_debug("ctcmpc in:%s() %s xid2:%i xid7:%i xidt_p2:%i \n", - __FUNCTION__, ch->id, - grp->outstanding_xid2, - grp->outstanding_xid7, - grp->outstanding_xid7_p2); + CTCM_PR_DEBUG("%s: ch-id:%s xid2:%i xid7:%i xidt_p2:%i \n", + __func__, ch->id, grp->outstanding_xid2, + grp->outstanding_xid7, grp->outstanding_xid7_p2); if (fsm_getstate(ch->fsm) < CH_XID7_PENDING) fsm_newstate(ch->fsm, CH_XID7_PENDING); @@ -2268,17 +2025,12 @@ static void mpc_action_rcvd_xid0(fsm_instance *fsm, int event, void *arg) } kfree(mpcginfo); - if (do_debug) { - ctcm_pr_debug("ctcmpc:%s() %s xid2:%i xid7:%i xidt_p2:%i \n", - __FUNCTION__, ch->id, - grp->outstanding_xid2, - grp->outstanding_xid7, - grp->outstanding_xid7_p2); - ctcm_pr_debug("ctcmpc:%s() %s grpstate: %s chanstate: %s \n", - __FUNCTION__, ch->id, - fsm_getstate_str(grp->fsm), - fsm_getstate_str(ch->fsm)); - } + CTCM_PR_DEBUG("ctcmpc:%s() %s xid2:%i xid7:%i xidt_p2:%i \n", + __func__, ch->id, grp->outstanding_xid2, + grp->outstanding_xid7, grp->outstanding_xid7_p2); + CTCM_PR_DEBUG("ctcmpc:%s() %s grpstate: %s chanstate: %s \n", + __func__, ch->id, + fsm_getstate_str(grp->fsm), fsm_getstate_str(ch->fsm)); return; } @@ -2296,15 +2048,10 @@ static void mpc_action_rcvd_xid7(fsm_instance *fsm, int event, void *arg) struct ctcm_priv *priv = dev->priv; struct mpc_group *grp = priv->mpcg; - if (do_debug) { - ctcm_pr_debug("ctcmpc enter: %s(): cp=%i ch=0x%p id=%s\n", - __FUNCTION__, smp_processor_id(), ch, ch->id); - - ctcm_pr_debug("ctcmpc: outstanding_xid7: %i, " - " outstanding_xid7_p2: %i\n", - grp->outstanding_xid7, - grp->outstanding_xid7_p2); - } + CTCM_PR_DEBUG("Enter %s: cp=%i ch=0x%p id=%s\n", + __func__, smp_processor_id(), ch, ch->id); + CTCM_PR_DEBUG("%s: outstanding_xid7: %i, outstanding_xid7_p2: %i\n", + __func__, grp->outstanding_xid7, grp->outstanding_xid7_p2); grp->outstanding_xid7--; ch->xid_skb->data = ch->xid_skb_data; @@ -2337,14 +2084,8 @@ static void mpc_action_rcvd_xid7(fsm_instance *fsm, int event, void *arg) mpc_validate_xid(mpcginfo); break; } - kfree(mpcginfo); - - if (do_debug) - ctcm_pr_debug("ctcmpc exit: %s(): cp=%i ch=0x%p id=%s\n", - __FUNCTION__, smp_processor_id(), ch, ch->id); return; - } /* @@ -2353,36 +2094,14 @@ static void mpc_action_rcvd_xid7(fsm_instance *fsm, int event, void *arg) */ static int mpc_send_qllc_discontact(struct net_device *dev) { - int rc = 0; __u32 new_len = 0; struct sk_buff *skb; struct qllc *qllcptr; - struct ctcm_priv *priv; - struct mpc_group *grp; - - ctcm_pr_debug("ctcmpc enter: %s()\n", __FUNCTION__); - - if (dev == NULL) { - printk(KERN_INFO "%s() dev=NULL\n", __FUNCTION__); - rc = 1; - goto done; - } - - priv = dev->priv; - if (priv == NULL) { - printk(KERN_INFO "%s() priv=NULL\n", __FUNCTION__); - rc = 1; - goto done; - } + struct ctcm_priv *priv = dev->priv; + struct mpc_group *grp = priv->mpcg; - grp = priv->mpcg; - if (grp == NULL) { - printk(KERN_INFO "%s() grp=NULL\n", __FUNCTION__); - rc = 1; - goto done; - } - ctcm_pr_info("ctcmpc: %s() GROUP STATE: %s\n", __FUNCTION__, - mpcg_state_names[grp->saved_state]); + CTCM_PR_DEBUG("%s: GROUP STATE: %s\n", + __func__, mpcg_state_names[grp->saved_state]); switch (grp->saved_state) { /* @@ -2408,11 +2127,10 @@ static int mpc_send_qllc_discontact(struct net_device *dev) new_len = sizeof(struct qllc); qllcptr = kzalloc(new_len, gfp_type() | GFP_DMA); if (qllcptr == NULL) { - printk(KERN_INFO - "ctcmpc: Out of memory in %s()\n", - dev->name); - rc = 1; - goto done; + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): qllcptr allocation error", + CTCM_FUNTAIL, dev->name); + return -ENOMEM; } qllcptr->qllc_address = 0xcc; @@ -2421,31 +2139,29 @@ static int mpc_send_qllc_discontact(struct net_device *dev) skb = __dev_alloc_skb(new_len, GFP_ATOMIC); if (skb == NULL) { - printk(KERN_INFO "%s Out of memory in mpc_send_qllc\n", - dev->name); + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): skb allocation error", + CTCM_FUNTAIL, dev->name); priv->stats.rx_dropped++; - rc = 1; kfree(qllcptr); - goto done; + return -ENOMEM; } memcpy(skb_put(skb, new_len), qllcptr, new_len); kfree(qllcptr); if (skb_headroom(skb) < 4) { - printk(KERN_INFO "ctcmpc: %s() Unable to" - " build discontact for %s\n", - __FUNCTION__, dev->name); - rc = 1; + CTCM_DBF_TEXT_(MPC_ERROR, CTC_DBF_ERROR, + "%s(%s): skb_headroom error", + CTCM_FUNTAIL, dev->name); dev_kfree_skb_any(skb); - goto done; + return -ENOMEM; } *((__u32 *)skb_push(skb, 4)) = priv->channel[READ]->pdu_seq; priv->channel[READ]->pdu_seq++; - if (do_debug_data) - ctcm_pr_debug("ctcmpc: %s ToDCM_pdu_seq= %08x\n", - __FUNCTION__, priv->channel[READ]->pdu_seq); + CTCM_PR_DBGDATA("ctcmpc: %s ToDCM_pdu_seq= %08x\n", + __func__, priv->channel[READ]->pdu_seq); /* receipt of CC03 resets anticipated sequence number on receiving side */ @@ -2455,7 +2171,7 @@ static int mpc_send_qllc_discontact(struct net_device *dev) skb->protocol = htons(ETH_P_SNAP); skb->ip_summed = CHECKSUM_UNNECESSARY; - ctcmpc_dumpit((char *)skb->data, (sizeof(struct qllc) + 4)); + CTCM_D3_DUMP(skb->data, (sizeof(struct qllc) + 4)); netif_rx(skb); break; @@ -2464,9 +2180,7 @@ static int mpc_send_qllc_discontact(struct net_device *dev) } -done: - ctcm_pr_debug("ctcmpc exit: %s()\n", __FUNCTION__); - return rc; + return 0; } /* --- This is the END my friend --- */ diff --git a/drivers/s390/net/ctcm_mpc.h b/drivers/s390/net/ctcm_mpc.h index f996860..5336120 100644 --- a/drivers/s390/net/ctcm_mpc.h +++ b/drivers/s390/net/ctcm_mpc.h @@ -231,7 +231,7 @@ static inline void ctcmpc_dump32(char *buf, int len) int ctcmpc_open(struct net_device *); void ctcm_ccw_check_rc(struct channel *, int, char *); void mpc_group_ready(unsigned long adev); -int mpc_channel_action(struct channel *ch, int direction, int action); +void mpc_channel_action(struct channel *ch, int direction, int action); void mpc_action_send_discontact(unsigned long thischan); void mpc_action_discontact(fsm_instance *fi, int event, void *arg); void ctcmpc_bh(unsigned long thischan); |