diff options
Diffstat (limited to 'arch/ia64/sn/io/sn1/hubcounters.c')
| -rw-r--r-- | arch/ia64/sn/io/sn1/hubcounters.c | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/arch/ia64/sn/io/sn1/hubcounters.c b/arch/ia64/sn/io/sn1/hubcounters.c deleted file mode 100644 index 0d3717fb69bbdb..00000000000000 --- a/arch/ia64/sn/io/sn1/hubcounters.c +++ /dev/null @@ -1,283 +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; -} |