[deliverable/linux.git] / drivers / infiniband / hw / ipath / ipath_stats.c

/*
 * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved.
 * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include "ipath_kernel.h"

struct infinipath_stats ipath_stats;

/**
 * ipath_snap_cntr - snapshot a chip counter
 * @dd: the infinipath device
 * @creg: the counter to snapshot
 *
 * called from add_timer and user counter read calls, to deal with
 * counters that wrap in "human time".  The words sent and received, and
 * the packets sent and received are all that we worry about.  For now,
 * at least, we don't worry about error counters, because if they wrap
 * that quickly, we probably don't care.  We may eventually just make this
 * handle all the counters.  word counters can wrap in about 20 seconds
 * of full bandwidth traffic, packet counters in a few hours.
 */

u64 ipath_snap_cntr(struct ipath_devdata *dd, ipath_creg creg)
{
	u32 val, reg64 = 0;
	u64 val64;
	unsigned long t0, t1;
	u64 ret;
	unsigned long flags;

	t0 = jiffies;
	/* If fast increment counters are only 32 bits, snapshot them,
	 * and maintain them as 64bit values in the driver */
	if (!(dd->ipath_flags & IPATH_32BITCOUNTERS) &&
	    (creg == dd->ipath_cregs->cr_wordsendcnt ||
	     creg == dd->ipath_cregs->cr_wordrcvcnt ||
	     creg == dd->ipath_cregs->cr_pktsendcnt ||
	     creg == dd->ipath_cregs->cr_pktrcvcnt)) {
		val64 = ipath_read_creg(dd, creg);
		val = val64 == ~0ULL ? ~0U : 0;
		reg64 = 1;
	} else			/* val64 just to keep gcc quiet... */
		val64 = val = ipath_read_creg32(dd, creg);
	/*
	 * See if a second has passed.  This is just a way to detect things
	 * that are quite broken.  Normally this should take just a few
	 * cycles (the check is for long enough that we don't care if we get
	 * pre-empted.)  An Opteron HT O read timeout is 4 seconds with
	 * normal NB values
	 */
	t1 = jiffies;
	if (time_before(t0 + HZ, t1) && val == -1) {
		ipath_dev_err(dd, "Error!  Read counter 0x%x timed out\n",
			      creg);
		ret = 0ULL;
		goto bail;
	}
	if (reg64) {
		ret = val64;
		goto bail;
	}

	if (creg == dd->ipath_cregs->cr_wordsendcnt) {
		if (val != dd->ipath_lastsword) {
			dd->ipath_sword += val - dd->ipath_lastsword;
			spin_lock_irqsave(&dd->ipath_eep_st_lock, flags);
			dd->ipath_traffic_wds += val - dd->ipath_lastsword;
			spin_unlock_irqrestore(&dd->ipath_eep_st_lock, flags);
			dd->ipath_lastsword = val;
		}
		val64 = dd->ipath_sword;
	} else if (creg == dd->ipath_cregs->cr_wordrcvcnt) {
		if (val != dd->ipath_lastrword) {
			dd->ipath_rword += val - dd->ipath_lastrword;
			spin_lock_irqsave(&dd->ipath_eep_st_lock, flags);
			dd->ipath_traffic_wds += val - dd->ipath_lastrword;
			spin_unlock_irqrestore(&dd->ipath_eep_st_lock, flags);
			dd->ipath_lastrword = val;
		}
		val64 = dd->ipath_rword;
	} else if (creg == dd->ipath_cregs->cr_pktsendcnt) {
		if (val != dd->ipath_lastspkts) {
			dd->ipath_spkts += val - dd->ipath_lastspkts;
			dd->ipath_lastspkts = val;
		}
		val64 = dd->ipath_spkts;
	} else if (creg == dd->ipath_cregs->cr_pktrcvcnt) {
		if (val != dd->ipath_lastrpkts) {
			dd->ipath_rpkts += val - dd->ipath_lastrpkts;
			dd->ipath_lastrpkts = val;
		}
		val64 = dd->ipath_rpkts;
	} else
		val64 = (u64) val;

	ret = val64;

bail:
	return ret;
}

/**
 * ipath_qcheck - print delta of egrfull/hdrqfull errors for kernel ports
 * @dd: the infinipath device
 *
 * print the delta of egrfull/hdrqfull errors for kernel ports no more than
 * every 5 seconds.  User processes are printed at close, but kernel doesn't
 * close, so...  Separate routine so may call from other places someday, and
 * so function name when printed by _IPATH_INFO is meaningfull
 */
static void ipath_qcheck(struct ipath_devdata *dd)
{
	static u64 last_tot_hdrqfull;
	size_t blen = 0;
	char buf[128];

	*buf = 0;
	if (dd->ipath_pd[0]->port_hdrqfull != dd->ipath_p0_hdrqfull) {
		blen = snprintf(buf, sizeof buf, "port 0 hdrqfull %u",
				dd->ipath_pd[0]->port_hdrqfull -
				dd->ipath_p0_hdrqfull);
		dd->ipath_p0_hdrqfull = dd->ipath_pd[0]->port_hdrqfull;
	}
	if (ipath_stats.sps_etidfull != dd->ipath_last_tidfull) {
		blen += snprintf(buf + blen, sizeof buf - blen,
				 "%srcvegrfull %llu",
				 blen ? ", " : "",
				 (unsigned long long)
				 (ipath_stats.sps_etidfull -
				  dd->ipath_last_tidfull));
		dd->ipath_last_tidfull = ipath_stats.sps_etidfull;
	}

	/*
	 * this is actually the number of hdrq full interrupts, not actual
	 * events, but at the moment that's mostly what I'm interested in.
	 * Actual count, etc. is in the counters, if needed.  For production
	 * users this won't ordinarily be printed.
	 */

	if ((ipath_debug & (__IPATH_PKTDBG | __IPATH_DBG)) &&
	    ipath_stats.sps_hdrqfull != last_tot_hdrqfull) {
		blen += snprintf(buf + blen, sizeof buf - blen,
				 "%shdrqfull %llu (all ports)",
				 blen ? ", " : "",
				 (unsigned long long)
				 (ipath_stats.sps_hdrqfull -
				  last_tot_hdrqfull));
		last_tot_hdrqfull = ipath_stats.sps_hdrqfull;
	}
	if (blen)
		ipath_dbg("%s\n", buf);

	if (dd->ipath_port0head != (u32)
	    le64_to_cpu(*dd->ipath_hdrqtailptr)) {
		if (dd->ipath_lastport0rcv_cnt ==
		    ipath_stats.sps_port0pkts) {
			ipath_cdbg(PKT, "missing rcv interrupts? "
				   "port0 hd=%llx tl=%x; port0pkts %llx\n",
				   (unsigned long long)
				   le64_to_cpu(*dd->ipath_hdrqtailptr),
				   dd->ipath_port0head,
				   (unsigned long long)
				   ipath_stats.sps_port0pkts);
		}
		dd->ipath_lastport0rcv_cnt = ipath_stats.sps_port0pkts;
	}
}

/**
 * ipath_get_faststats - get word counters from chip before they overflow
 * @opaque - contains a pointer to the infinipath device ipath_devdata
 *
 * called from add_timer
 */
void ipath_get_faststats(unsigned long opaque)
{
	struct ipath_devdata *dd = (struct ipath_devdata *) opaque;
	u32 val;
	static unsigned cnt;
	unsigned long flags;

	/*
	 * don't access the chip while running diags, or memory diags can
	 * fail
	 */
	if (!dd->ipath_kregbase || !(dd->ipath_flags & IPATH_INITTED) ||
	    ipath_diag_inuse)
		/* but re-arm the timer, for diags case; won't hurt other */
		goto done;

	/*
	 * We now try to maintain a "active timer", based on traffic
	 * exceeding a threshold, so we need to check the word-counts
	 * even if they are 64-bit.
	 */
	ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordsendcnt);
	ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordrcvcnt);
	spin_lock_irqsave(&dd->ipath_eep_st_lock, flags);
	if (dd->ipath_traffic_wds  >= IPATH_TRAFFIC_ACTIVE_THRESHOLD)
		atomic_add(5, &dd->ipath_active_time); /* S/B #define */
	dd->ipath_traffic_wds = 0;
	spin_unlock_irqrestore(&dd->ipath_eep_st_lock, flags);

	if (dd->ipath_flags & IPATH_32BITCOUNTERS) {
		ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktsendcnt);
		ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktrcvcnt);
	}

	ipath_qcheck(dd);

	/*
	 * deal with repeat error suppression.  Doesn't really matter if
	 * last error was almost a full interval ago, or just a few usecs
	 * ago; still won't get more than 2 per interval.  We may want
	 * longer intervals for this eventually, could do with mod, counter
	 * or separate timer.  Also see code in ipath_handle_errors() and
	 * ipath_handle_hwerrors().
	 */

	if (dd->ipath_lasterror)
		dd->ipath_lasterror = 0;
	if (dd->ipath_lasthwerror)
		dd->ipath_lasthwerror = 0;
	if ((dd->ipath_maskederrs & ~dd->ipath_ignorederrs)
	    && time_after(jiffies, dd->ipath_unmasktime)) {
		char ebuf[256];
		int iserr;
		iserr = ipath_decode_err(ebuf, sizeof ebuf,
				 (dd->ipath_maskederrs & ~dd->
				  ipath_ignorederrs));
		if ((dd->ipath_maskederrs & ~dd->ipath_ignorederrs) &
				~(INFINIPATH_E_RRCVEGRFULL | INFINIPATH_E_RRCVHDRFULL |
				INFINIPATH_E_PKTERRS ))
			ipath_dev_err(dd, "Re-enabling masked errors "
				      "(%s)\n", ebuf);
		else {
			/*
			 * rcvegrfull and rcvhdrqfull are "normal", for some
			 * types of processes (mostly benchmarks) that send
			 * huge numbers of messages, while not processing
			 * them.  So only complain about these at debug
			 * level.
			 */
			if (iserr)
					ipath_dbg("Re-enabling queue full errors (%s)\n",
							ebuf);
			else
				ipath_cdbg(ERRPKT, "Re-enabling packet"
						" problem interrupt (%s)\n", ebuf);
		}
		dd->ipath_maskederrs = dd->ipath_ignorederrs;
		ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask,
				 ~dd->ipath_maskederrs);
	}

	/* limit qfull messages to ~one per minute per port */
	if ((++cnt & 0x10)) {
		for (val = dd->ipath_cfgports - 1; ((int)val) >= 0;
		     val--) {
			if (dd->ipath_lastegrheads[val] != -1)
				dd->ipath_lastegrheads[val] = -1;
			if (dd->ipath_lastrcvhdrqtails[val] != -1)
				dd->ipath_lastrcvhdrqtails[val] = -1;
		}
	}

done:
	mod_timer(&dd->ipath_stats_timer, jiffies + HZ * 5);
}
Commit	Line	Data
108ecf0d	1	/*
87427da5	2	* Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved.
108ecf0d BS	3	* Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
	4	*
	5	* This software is available to you under a choice of one of two
	6	* licenses. You may choose to be licensed under the terms of the GNU
	7	* General Public License (GPL) Version 2, available from the file
	8	* COPYING in the main directory of this source tree, or the
	9	* OpenIB.org BSD license below:
	10	*
	11	* Redistribution and use in source and binary forms, with or
	12	* without modification, are permitted provided that the following
	13	* conditions are met:
	14	*
	15	* - Redistributions of source code must retain the above
	16	* copyright notice, this list of conditions and the following
	17	* disclaimer.
	18	*
	19	* - Redistributions in binary form must reproduce the above
	20	* copyright notice, this list of conditions and the following
	21	* disclaimer in the documentation and/or other materials
	22	* provided with the distribution.
	23	*
	24	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	25	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	26	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	27	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	28	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	29	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	30	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	31	* SOFTWARE.
	32	*/
	33
108ecf0d BS	34	#include "ipath_kernel.h"
	35
	36	struct infinipath_stats ipath_stats;
	37
	38	/**
	39	* ipath_snap_cntr - snapshot a chip counter
	40	* @dd: the infinipath device
	41	* @creg: the counter to snapshot
	42	*
	43	* called from add_timer and user counter read calls, to deal with
	44	* counters that wrap in "human time". The words sent and received, and
	45	* the packets sent and received are all that we worry about. For now,
	46	* at least, we don't worry about error counters, because if they wrap
	47	* that quickly, we probably don't care. We may eventually just make this
	48	* handle all the counters. word counters can wrap in about 20 seconds
	49	* of full bandwidth traffic, packet counters in a few hours.
	50	*/
	51
	52	u64 ipath_snap_cntr(struct ipath_devdata *dd, ipath_creg creg)
	53	{
	54	u32 val, reg64 = 0;
	55	u64 val64;
	56	unsigned long t0, t1;
	57	u64 ret;
aecd3b5a	58	unsigned long flags;
108ecf0d BS	59
	60	t0 = jiffies;
	61	/* If fast increment counters are only 32 bits, snapshot them,
	62	* and maintain them as 64bit values in the driver */
	63	if (!(dd->ipath_flags & IPATH_32BITCOUNTERS) &&
	64	(creg == dd->ipath_cregs->cr_wordsendcnt \|\|
	65	creg == dd->ipath_cregs->cr_wordrcvcnt \|\|
	66	creg == dd->ipath_cregs->cr_pktsendcnt \|\|
	67	creg == dd->ipath_cregs->cr_pktrcvcnt)) {
	68	val64 = ipath_read_creg(dd, creg);
	69	val = val64 == ~0ULL ? ~0U : 0;
	70	reg64 = 1;
	71	} else /* val64 just to keep gcc quiet... */
	72	val64 = val = ipath_read_creg32(dd, creg);
	73	/*
	74	* See if a second has passed. This is just a way to detect things
	75	* that are quite broken. Normally this should take just a few
	76	* cycles (the check is for long enough that we don't care if we get
	77	* pre-empted.) An Opteron HT O read timeout is 4 seconds with
	78	* normal NB values
	79	*/
	80	t1 = jiffies;
	81	if (time_before(t0 + HZ, t1) && val == -1) {
	82	ipath_dev_err(dd, "Error! Read counter 0x%x timed out\n",
	83	creg);
	84	ret = 0ULL;
	85	goto bail;
	86	}
	87	if (reg64) {
	88	ret = val64;
	89	goto bail;
	90	}
	91
	92	if (creg == dd->ipath_cregs->cr_wordsendcnt) {
	93	if (val != dd->ipath_lastsword) {
	94	dd->ipath_sword += val - dd->ipath_lastsword;
aecd3b5a MA	95	spin_lock_irqsave(&dd->ipath_eep_st_lock, flags);
	96	dd->ipath_traffic_wds += val - dd->ipath_lastsword;
	97	spin_unlock_irqrestore(&dd->ipath_eep_st_lock, flags);
108ecf0d BS	98	dd->ipath_lastsword = val;
	99	}
	100	val64 = dd->ipath_sword;
	101	} else if (creg == dd->ipath_cregs->cr_wordrcvcnt) {
	102	if (val != dd->ipath_lastrword) {
	103	dd->ipath_rword += val - dd->ipath_lastrword;
aecd3b5a MA	104	spin_lock_irqsave(&dd->ipath_eep_st_lock, flags);
	105	dd->ipath_traffic_wds += val - dd->ipath_lastrword;
	106	spin_unlock_irqrestore(&dd->ipath_eep_st_lock, flags);
108ecf0d BS	107	dd->ipath_lastrword = val;
	108	}
	109	val64 = dd->ipath_rword;
	110	} else if (creg == dd->ipath_cregs->cr_pktsendcnt) {
	111	if (val != dd->ipath_lastspkts) {
	112	dd->ipath_spkts += val - dd->ipath_lastspkts;
	113	dd->ipath_lastspkts = val;
	114	}
	115	val64 = dd->ipath_spkts;
	116	} else if (creg == dd->ipath_cregs->cr_pktrcvcnt) {
	117	if (val != dd->ipath_lastrpkts) {
	118	dd->ipath_rpkts += val - dd->ipath_lastrpkts;
	119	dd->ipath_lastrpkts = val;
	120	}
	121	val64 = dd->ipath_rpkts;
	122	} else
	123	val64 = (u64) val;
	124
	125	ret = val64;
	126
	127	bail:
	128	return ret;
	129	}
	130
	131	/**
	132	* ipath_qcheck - print delta of egrfull/hdrqfull errors for kernel ports
	133	* @dd: the infinipath device
	134	*
	135	* print the delta of egrfull/hdrqfull errors for kernel ports no more than
	136	* every 5 seconds. User processes are printed at close, but kernel doesn't
	137	* close, so... Separate routine so may call from other places someday, and
	138	* so function name when printed by _IPATH_INFO is meaningfull
	139	*/
	140	static void ipath_qcheck(struct ipath_devdata *dd)
	141	{
	142	static u64 last_tot_hdrqfull;
	143	size_t blen = 0;
	144	char buf[128];
	145
	146	*buf = 0;
	147	if (dd->ipath_pd[0]->port_hdrqfull != dd->ipath_p0_hdrqfull) {
	148	blen = snprintf(buf, sizeof buf, "port 0 hdrqfull %u",
	149	dd->ipath_pd[0]->port_hdrqfull -
	150	dd->ipath_p0_hdrqfull);
	151	dd->ipath_p0_hdrqfull = dd->ipath_pd[0]->port_hdrqfull;
	152	}
	153	if (ipath_stats.sps_etidfull != dd->ipath_last_tidfull) {
	154	blen += snprintf(buf + blen, sizeof buf - blen,
	155	"%srcvegrfull %llu",
	156	blen ? ", " : "",
	157	(unsigned long long)
	158	(ipath_stats.sps_etidfull -
	159	dd->ipath_last_tidfull));
	160	dd->ipath_last_tidfull = ipath_stats.sps_etidfull;
	161	}
	162
	163	/*
	164	* this is actually the number of hdrq full interrupts, not actual
	165	* events, but at the moment that's mostly what I'm interested in.
	166	* Actual count, etc. is in the counters, if needed. For production
	167	* users this won't ordinarily be printed.
	168	*/
	169
	170	if ((ipath_debug & (__IPATH_PKTDBG \| __IPATH_DBG)) &&
171	ipath_stats.sps_hdrqfull != last_tot_hdrqfull) {
172	blen += snprintf(buf + blen, sizeof buf - blen,
173	"%shdrqfull %llu (all ports)",
174	blen ? ", " : "",
175	(unsigned long long)
176	(ipath_stats.sps_hdrqfull -
177	last_tot_hdrqfull));
178	last_tot_hdrqfull = ipath_stats.sps_hdrqfull;
179	}
180	if (blen)
181	ipath_dbg("%s\n", buf);
182
183	if (dd->ipath_port0head != (u32)
184	le64_to_cpu(*dd->ipath_hdrqtailptr)) {
185	if (dd->ipath_lastport0rcv_cnt ==
186	ipath_stats.sps_port0pkts) {
187	ipath_cdbg(PKT, "missing rcv interrupts? "
188	"port0 hd=%llx tl=%x; port0pkts %llx\n",
189	(unsigned long long)
190	le64_to_cpu(*dd->ipath_hdrqtailptr),
191	dd->ipath_port0head,
192	(unsigned long long)
193	ipath_stats.sps_port0pkts);
108ecf0d BS	194	}
	195	dd->ipath_lastport0rcv_cnt = ipath_stats.sps_port0pkts;
	196	}
	197	}
	198
	199	/**
	200	* ipath_get_faststats - get word counters from chip before they overflow
	201	* @opaque - contains a pointer to the infinipath device ipath_devdata
	202	*
	203	* called from add_timer
	204	*/
	205	void ipath_get_faststats(unsigned long opaque)
	206	{
	207	struct ipath_devdata dd = (struct ipath_devdata ) opaque;
	208	u32 val;
	209	static unsigned cnt;
aecd3b5a	210	unsigned long flags;
108ecf0d BS	211
	212	/*
	213	* don't access the chip while running diags, or memory diags can
	214	* fail
	215	*/
27b044a8	216	if (!dd->ipath_kregbase \|\| !(dd->ipath_flags & IPATH_INITTED) \|\|
108ecf0d BS	217	ipath_diag_inuse)
	218	/* but re-arm the timer, for diags case; won't hurt other */
	219	goto done;
	220
aecd3b5a MA	221	/*
	222	* We now try to maintain a "active timer", based on traffic
	223	* exceeding a threshold, so we need to check the word-counts
	224	* even if they are 64-bit.
	225	*/
	226	ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordsendcnt);
	227	ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordrcvcnt);
	228	spin_lock_irqsave(&dd->ipath_eep_st_lock, flags);
	229	if (dd->ipath_traffic_wds >= IPATH_TRAFFIC_ACTIVE_THRESHOLD)
	230	atomic_add(5, &dd->ipath_active_time); /* S/B #define */
	231	dd->ipath_traffic_wds = 0;
	232	spin_unlock_irqrestore(&dd->ipath_eep_st_lock, flags);
	233
108ecf0d	234	if (dd->ipath_flags & IPATH_32BITCOUNTERS) {
108ecf0d BS	235	ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktsendcnt);
	236	ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktrcvcnt);
	237	}
	238
	239	ipath_qcheck(dd);
	240
	241	/*
	242	* deal with repeat error suppression. Doesn't really matter if
	243	* last error was almost a full interval ago, or just a few usecs
	244	* ago; still won't get more than 2 per interval. We may want
	245	* longer intervals for this eventually, could do with mod, counter
	246	* or separate timer. Also see code in ipath_handle_errors() and
	247	* ipath_handle_hwerrors().
	248	*/
	249
	250	if (dd->ipath_lasterror)
	251	dd->ipath_lasterror = 0;
	252	if (dd->ipath_lasthwerror)
	253	dd->ipath_lasthwerror = 0;
	254	if ((dd->ipath_maskederrs & ~dd->ipath_ignorederrs)
	255	&& time_after(jiffies, dd->ipath_unmasktime)) {
	256	char ebuf[256];
8ec1077b BS	257	int iserr;
8ec1077b BS	258	iserr = ipath_decode_err(ebuf, sizeof ebuf,
108ecf0d BS	259	(dd->ipath_maskederrs & ~dd->
	260	ipath_ignorederrs));
	261	if ((dd->ipath_maskederrs & ~dd->ipath_ignorederrs) &
8ec1077b BS	262	~(INFINIPATH_E_RRCVEGRFULL \| INFINIPATH_E_RRCVHDRFULL \|
8ec1077b BS	263	INFINIPATH_E_PKTERRS ))
108ecf0d BS	264	ipath_dev_err(dd, "Re-enabling masked errors "
	265	"(%s)\n", ebuf);
	266	else {
	267	/*
	268	* rcvegrfull and rcvhdrqfull are "normal", for some
	269	* types of processes (mostly benchmarks) that send
	270	* huge numbers of messages, while not processing
	271	* them. So only complain about these at debug
	272	* level.
	273	*/
8ec1077b BS	274	if (iserr)
	275	ipath_dbg("Re-enabling queue full errors (%s)\n",
	276	ebuf);
	277	else
	278	ipath_cdbg(ERRPKT, "Re-enabling packet"
	279	" problem interrupt (%s)\n", ebuf);
108ecf0d BS	280	}
	281	dd->ipath_maskederrs = dd->ipath_ignorederrs;
	282	ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask,
	283	~dd->ipath_maskederrs);
	284	}
	285
	286	/* limit qfull messages to ~one per minute per port */
	287	if ((++cnt & 0x10)) {
	288	for (val = dd->ipath_cfgports - 1; ((int)val) >= 0;
	289	val--) {
	290	if (dd->ipath_lastegrheads[val] != -1)
	291	dd->ipath_lastegrheads[val] = -1;
	292	if (dd->ipath_lastrcvhdrqtails[val] != -1)
	293	dd->ipath_lastrcvhdrqtails[val] = -1;
	294	}
	295	}
	296
108ecf0d BS	297	done:
	298	mod_timer(&dd->ipath_stats_timer, jiffies + HZ * 5);
	299	}