Commit eaf660e4 authored by Justin Tee's avatar Justin Tee Committed by Martin K. Petersen
Browse files

scsi: lpfc: Log when congestion management limits are in effect 



When bandwidth reduces from or recovers back to 100% due to congestion
management, log the event.

Signed-off-by: default avatarJustin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20221017164323.14536-3-justintee8345@gmail.com


Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent c44e50f4

drivers/scsi/lpfc/lpfc_sli.c

+12 −0
Original line number Original line Diff line number Diff line
@@ -1848,6 +1848,18 @@ lpfc_cmf_sync_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 
				  phba->cmf_link_byte_count);

				  phba->cmf_link_byte_count);

		bwpcent = div64_u64(bw * 100 + slop,

		bwpcent = div64_u64(bw * 100 + slop,

				    phba->cmf_link_byte_count);

				    phba->cmf_link_byte_count);










		if (phba->cmf_max_bytes_per_interval < bw &&










		    bwpcent > 95)










			lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,










					"6208 Congestion bandwidth "










					"limits removed\n");










		else if ((phba->cmf_max_bytes_per_interval > bw) &&










			 ((bwpcent + pcent) <= 100) && ((bwpcent + pcent) > 95))










			lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,










					"6209 Congestion bandwidth "










					"limits in effect\n");

















		if (asig) {




		if (asig) {








			lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,




			lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,








					"6237 BW Threshold %lld%% (%lld): "




					"6237 BW Threshold %lld%% (%lld): "