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scsi: lpfc: Update congestion mode logging for Emulex SAN Manager application

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If there is a congestion or automated congestion response mode change, then
log the reported change to kmsg.

Link: https://lore.kernel.org/r/20220911221505.117655-8-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart 2022-09-11 15:14:59 -07:00 committed by Martin K. Petersen
parent 6e5c5d246e
commit 21828e3c91
1 changed files with 22 additions and 6 deletions
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28
drivers/scsi/lpfc/lpfc_init.c
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@ -7038,6 +7038,12 @@ lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
spin_unlock_irq(&phba->hbalock);
}
static const char * const lpfc_cmf_mode_to_str[] = {
"OFF",
"MANAGED",
"MONITOR",
};
/**
* lpfc_cgn_params_parse - Process a FW cong parm change event
* @phba: pointer to lpfc hba data structure.
@ -7057,6 +7063,7 @@ lpfc_cgn_params_parse(struct lpfc_hba *phba,
{
struct lpfc_cgn_info *cp;
uint32_t crc, oldmode;
char acr_string[4] = {0};
/* Make sure the FW has encoded the correct magic number to
* validate the congestion parameter in FW memory.
@ -7133,9 +7140,6 @@ lpfc_cgn_params_parse(struct lpfc_hba *phba,
lpfc_issue_els_edc(phba->pport, 0);
break;
case LPFC_CFG_MONITOR:
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"4661 Switch from MANAGED to "
"`MONITOR mode\n");
phba->cmf_max_bytes_per_interval =
phba->cmf_link_byte_count;
@ -7154,14 +7158,26 @@ lpfc_cgn_params_parse(struct lpfc_hba *phba,
lpfc_issue_els_edc(phba->pport, 0);
break;
case LPFC_CFG_MANAGED:
lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
"4662 Switch from MONITOR to "
"MANAGED mode\n");
lpfc_cmf_signal_init(phba);
break;
}
break;
}
if (oldmode != LPFC_CFG_OFF ||
oldmode != phba->cgn_p.cgn_param_mode) {
if (phba->cgn_p.cgn_param_mode == LPFC_CFG_MANAGED)
scnprintf(acr_string, sizeof(acr_string), "%u",
phba->cgn_p.cgn_param_level0);
else
scnprintf(acr_string, sizeof(acr_string), "NA");
dev_info(&phba->pcidev->dev, "%d: "
"4663 CMF: Mode %s acr %s\n",
phba->brd_no,
lpfc_cmf_mode_to_str
[phba->cgn_p.cgn_param_mode],
acr_string);
}
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
"4669 FW cgn parm buf wrong magic 0x%x "