patch-2.4.22 linux-2.4.22/arch/ia64/sn/io/sn1/hubcounters.c

• Lines: 283
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/arch/ia64/sn/io/sn1/hubcounters.c
• Orig date: 2003-06-13 07:51:30.000000000 -0700

diff -urN linux-2.4.21/arch/ia64/sn/io/sn1/hubcounters.c linux-2.4.22/arch/ia64/sn/io/sn1/hubcounters.c
@@ -1,282 +0,0 @@
-/* $Id: hubcounters.c,v 1.1 2002/02/28 17:31:25 marcelo Exp $
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1992-1997,2000-2002 Silicon Graphics, Inc. All Rights Reserved.
- */
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <asm/types.h>
-#include <asm/sn/io.h>
-#include <asm/sn/nodepda.h>
-#include <asm/sn/iograph.h>
-#include <asm/sn/sn_cpuid.h>
-#include <asm/sn/router.h>
-#include <asm/sn/snconfig.h>
-#include <asm/sn/slotnum.h>
-#include <asm/sn/clksupport.h>
-#include <asm/sn/sndrv.h>
-
-extern void hubni_error_handler(char *, int); /* huberror.c */
-
-static int hubstats_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
-struct file_operations hub_mon_fops = {
-        ioctl:          hubstats_ioctl,
-};
-
-#define HUB_CAPTURE_TICKS	(2 * HZ)
-
-#define HUB_ERR_THRESH		500
-#define USEC_PER_SEC		1000000
-#define NSEC_PER_SEC		USEC_PER_SEC*1000
-
-volatile int hub_print_usecs = 600 * USEC_PER_SEC;
-
-/* Return success if the hub's crosstalk link is working */
-int
-hub_xtalk_link_up(nasid_t nasid)
-{
-	hubreg_t	llp_csr_reg;
-
-	/* Read the IO LLP control status register */
-	llp_csr_reg = REMOTE_HUB_L(nasid, IIO_LLP_CSR);
-
-	/* Check if the xtalk link is working */
-	if (llp_csr_reg & IIO_LLP_CSR_IS_UP) 
-		return(1);
-
-	return(0);
-
-	
-}
-
-static char *error_flag_to_type(unsigned char error_flag)
-{
-    switch(error_flag) {
-    case 0x1: return ("NI retries");
-    case 0x2: return ("NI SN errors");
-    case 0x4: return ("NI CB errors");
-    case 0x8: return ("II CB errors");
-    case 0x10: return ("II SN errors");
-    default: return ("Errors");
-    }
-}
-
-int
-print_hub_error(hubstat_t *hsp, hubreg_t reg,
-		int64_t delta, unsigned char error_flag)
-{
-	int64_t rate;
-
-	reg *= hsp->hs_per_minute;	/* Convert to minutes */
-	rate = reg / delta;
-
-	if (rate > HUB_ERR_THRESH) {
-		
-		if(hsp->hs_maint & error_flag) 
-		{
-		printk( "Excessive %s (%ld/min) on %s",
-			error_flag_to_type(error_flag), rate, hsp->hs_name); 
-		}
-		else 
-		{
-		   hsp->hs_maint |= error_flag;
-		printk( "Excessive %s (%ld/min) on %s",
-			error_flag_to_type(error_flag), rate, hsp->hs_name); 
-		}
-		return 1;
-	} else {
-		return 0;
-	}
-}
-
-
-int
-check_hub_error_rates(hubstat_t *hsp)
-{
-	int64_t delta = hsp->hs_timestamp - hsp->hs_timebase;
-	int printed = 0;
-
-	printed += print_hub_error(hsp, hsp->hs_ni_retry_errors,
-				   delta, 0x1);
-
-#if 0
-	printed += print_hub_error(hsp, hsp->hs_ni_sn_errors,
-				   delta, 0x2);
-#endif
-
-	printed += print_hub_error(hsp, hsp->hs_ni_cb_errors,
-				   delta, 0x4);
-
-
-	/* If the hub's xtalk link is not working there is 
-	 * no need to print the "Excessive..." warning 
-	 * messages
-	 */
-	if (!hub_xtalk_link_up(hsp->hs_nasid))
-		return(printed);
-
-
-	printed += print_hub_error(hsp, hsp->hs_ii_cb_errors,
-				   delta, 0x8);
-
-	printed += print_hub_error(hsp, hsp->hs_ii_sn_errors,
-				   delta, 0x10);
-
-	return printed;
-}
-
-
-void
-capture_hub_stats(cnodeid_t cnodeid, struct nodepda_s *npda)
-{
-	nasid_t nasid;
-	hubstat_t *hsp = &(npda->hubstats);
-	hubreg_t port_error;
-	ii_illr_u_t illr;
-	int count;
-	int overflow = 0;
-
-	/*
-	 * If our link wasn't up at boot time, don't worry about error rates.
-	 */
-	if (!(hsp->hs_ni_port_status & NPS_LINKUP_MASK)) {
-		printk("capture_hub_stats: cnode=%d hs_ni_port_status=0x%016lx : link is not up\n",
-		cnodeid, hsp->hs_ni_port_status);
-		return;
-	}
-
-	nasid = COMPACT_TO_NASID_NODEID(cnodeid);
-
-	hsp->hs_timestamp = GET_RTC_COUNTER();
-
-	port_error = REMOTE_HUB_L(nasid, NI_PORT_ERROR_CLEAR);
-	count = ((port_error & NPE_RETRYCOUNT_MASK) >> NPE_RETRYCOUNT_SHFT);
-	hsp->hs_ni_retry_errors += count;
-	if (count == NPE_COUNT_MAX)
-		overflow = 1;
-	count = ((port_error & NPE_SNERRCOUNT_MASK) >> NPE_SNERRCOUNT_SHFT);
-	hsp->hs_ni_sn_errors += count;
-	if (count == NPE_COUNT_MAX)
-		overflow = 1;
-	count = ((port_error & NPE_CBERRCOUNT_MASK) >> NPE_CBERRCOUNT_SHFT);
-	hsp->hs_ni_cb_errors += count;
-	if (overflow || count == NPE_COUNT_MAX)
-		hsp->hs_ni_overflows++;
-
-	if (port_error & NPE_FATAL_ERRORS) {
-#ifdef ajm
-		hubni_error_handler("capture_hub_stats", 1);
-#else
-		printk("Error: hubni_error_handler in capture_hub_stats");
-#endif
-	}
-
-	illr.ii_illr_regval = REMOTE_HUB_L(nasid, IIO_LLP_LOG);
-	REMOTE_HUB_S(nasid, IIO_LLP_LOG, 0);
-
-	hsp->hs_ii_sn_errors += illr.ii_illr_fld_s.i_sn_cnt;
-	hsp->hs_ii_cb_errors += illr.ii_illr_fld_s.i_cb_cnt;
-	if ((illr.ii_illr_fld_s.i_sn_cnt == IIO_LLP_SN_MAX) ||
-	    (illr.ii_illr_fld_s.i_cb_cnt == IIO_LLP_CB_MAX))
-		hsp->hs_ii_overflows++;
-
-	if (hsp->hs_print) {
-		if (check_hub_error_rates(hsp)) {
-			hsp->hs_last_print = GET_RTC_COUNTER();
-			hsp->hs_print = 0;
-		}
-	} else {
-		if ((GET_RTC_COUNTER() -
-		    hsp->hs_last_print) > hub_print_usecs)
-			hsp->hs_print = 1;
-	}
-		
-	npda->hubticks = HUB_CAPTURE_TICKS;
-}
-
-
-void
-init_hub_stats(cnodeid_t cnodeid, struct nodepda_s *npda)
-{
-	hubstat_t *hsp = &(npda->hubstats);
-	nasid_t nasid = cnodeid_to_nasid(cnodeid);
-	bzero(&(npda->hubstats), sizeof(hubstat_t));
-
-	hsp->hs_version = HUBSTAT_VERSION;
-	hsp->hs_cnode = cnodeid;
-	hsp->hs_nasid = nasid;
-	hsp->hs_timebase = GET_RTC_COUNTER();
-	hsp->hs_ni_port_status = REMOTE_HUB_L(nasid, NI_PORT_STATUS);
-
-	/* Clear the II error counts. */
-	REMOTE_HUB_S(nasid, IIO_LLP_LOG, 0);
-
-	/* Clear the NI counts. */
-	REMOTE_HUB_L(nasid, NI_PORT_ERROR_CLEAR);
-
-	hsp->hs_per_minute = (long long)RTC_CYCLES_PER_SEC * 60LL;
-
-	npda->hubticks = HUB_CAPTURE_TICKS;
-
-	/* XX should use kmem_alloc_node */
-	hsp->hs_name = (char *)kmalloc(MAX_HUB_PATH, GFP_KERNEL);
-	ASSERT_ALWAYS(hsp->hs_name);
-
-	sprintf(hsp->hs_name, "/dev/hw/" EDGE_LBL_MODULE "/%03d/"
-	        EDGE_LBL_NODE "/" EDGE_LBL_HUB,
-		npda->module_id);
-
-	hsp->hs_last_print = 0;
-	hsp->hs_print = 1;
-
-	hub_print_usecs = hub_print_usecs;
-
-#if 0
-	printk("init_hub_stats: cnode=%d nasid=%d hs_version=%d hs_ni_port_status=0x%016lx\n",
-		cnodeid, nasid, hsp->hs_version, hsp->hs_ni_port_status);
-#endif
-}
-
-static int
-hubstats_ioctl(struct inode *inode, struct file *file,
-        unsigned int cmd, unsigned long arg)
-{
-        cnodeid_t       cnode;
-        nodepda_t       *npdap;
-        uint64_t        longarg;
-        devfs_handle_t  d;
-
-        if ((d = devfs_get_handle_from_inode(inode)) == NULL)
-                return -ENODEV;
-        cnode = (cnodeid_t)hwgraph_fastinfo_get(d);
-        npdap = NODEPDA(cnode);
-
-	if (npdap->hubstats.hs_version != HUBSTAT_VERSION) {
-		init_hub_stats(cnode, npdap);
-	}
-
-        switch (cmd) {
-	case SNDRV_GET_INFOSIZE:
-		longarg = sizeof(hubstat_t);
-		if (copy_to_user((void *)arg, &longarg, sizeof(longarg))) {
-		    return -EFAULT;
-		}
-		break;
-
-	case SNDRV_GET_HUBINFO:
-		/* refresh npda->hubstats */
-		capture_hub_stats(cnode, npdap);
-		if (copy_to_user((void *)arg, &npdap->hubstats, sizeof(hubstat_t))) {
-		    return -EFAULT;
-		}
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}