From ea2151b4e142fa2de0319d9dd80413a997bf435a Mon Sep 17 00:00:00 2001 From: James Smart Date: Sun, 7 Sep 2008 11:52:10 -0400 Subject: [SCSI] lpfc 8.2.8 v2 : Add statistical reporting control and additional fc vendor events Added support for new sysfs attributes: lpfc_stat_data_ctrl and lpfc_max_scsicmpl_time. The attributes control statistical reporting of io load. Added support for new fc vendor events for error reporting. Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc_vport.c | 80 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) (limited to 'drivers/scsi/lpfc/lpfc_vport.c') diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c index 2578d5fd9537..a7de1cc02b40 100644 --- a/drivers/scsi/lpfc/lpfc_vport.c +++ b/drivers/scsi/lpfc/lpfc_vport.c @@ -34,6 +34,7 @@ #include #include "lpfc_hw.h" #include "lpfc_sli.h" +#include "lpfc_nl.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" #include "lpfc.h" @@ -745,3 +746,82 @@ lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports) scsi_host_put(lpfc_shost_from_vport(vports[i])); kfree(vports); } + + +/** + * lpfc_vport_reset_stat_data: Reset the statistical data for the vport. + * @vport: Pointer to vport object. + * + * This function resets the statistical data for the vport. This function + * is called with the host_lock held + **/ +void +lpfc_vport_reset_stat_data(struct lpfc_vport *vport) +{ + struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; + + list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { + if (!NLP_CHK_NODE_ACT(ndlp)) + continue; + if (ndlp->lat_data) + memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT * + sizeof(struct lpfc_scsicmd_bkt)); + } +} + + +/** + * lpfc_alloc_bucket: Allocate data buffer required for collecting + * statistical data. + * @vport: Pointer to vport object. + * + * This function allocates data buffer required for all the FC + * nodes of the vport to collect statistical data. + **/ +void +lpfc_alloc_bucket(struct lpfc_vport *vport) +{ + struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; + + list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { + if (!NLP_CHK_NODE_ACT(ndlp)) + continue; + + kfree(ndlp->lat_data); + ndlp->lat_data = NULL; + + if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { + ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, + sizeof(struct lpfc_scsicmd_bkt), + GFP_ATOMIC); + + if (!ndlp->lat_data) + lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE, + "0287 lpfc_alloc_bucket failed to " + "allocate statistical data buffer DID " + "0x%x\n", ndlp->nlp_DID); + } + } +} + +/** + * lpfc_free_bucket: Free data buffer required for collecting + * statistical data. + * @vport: Pointer to vport object. + * + * Th function frees statistical data buffer of all the FC + * nodes of the vport. + **/ +void +lpfc_free_bucket(struct lpfc_vport *vport) +{ + struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; + + list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { + if (!NLP_CHK_NODE_ACT(ndlp)) + continue; + + kfree(ndlp->lat_data); + ndlp->lat_data = NULL; + } +} -- cgit v1.2.1