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Commit b8e6f136 authored by James Smart's avatar James Smart Committed by Martin K. Petersen
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scsi: lpfc: Fix incorrect logical link speed on trunks when links down 



Invalid logical speed is displayed for trunk enabled ports when all ports
are down. Also noted that link speed is incorrectly reported for the units
when links are up.

Current code is returning the logical link speed from the last event from
the adapter. In cases where the last link went down, the link speed in the
event was not valid - meaning that although the links where down the field
had a bogus value.

Rework the event handling to qualify the trunk link state before using the
event speed data.

Also correct units on other areas where the logical link speed was taken
from a link event.

Signed-off-by: default avatarDick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: default avatarJames Smart <jsmart2021@gmail.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 04d210c9

drivers/scsi/lpfc/lpfc_bsg.c

+1 −1
Original line number Diff line number Diff line
@@ -5741,7 +5741,7 @@ lpfc_get_trunk_info(struct bsg_job *job) 


	event_reply->port_speed = phba->sli4_hba.link_state.speed / 1000;

	event_reply->logical_speed =

				phba->sli4_hba.link_state.logical_speed / 100;

				phba->sli4_hba.link_state.logical_speed / 1000;

job_error:

	bsg_reply->result = rc;

	bsg_job_done(job, bsg_reply->result,

drivers/scsi/lpfc/lpfc_init.c

+8 −2
Original line number Diff line number Diff line
@@ -5055,7 +5055,7 @@ lpfc_update_trunk_link_status(struct lpfc_hba *phba, 
				bf_get(lpfc_acqe_fc_la_speed, acqe_fc));



	phba->sli4_hba.link_state.logical_speed =

				bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);

				bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;

	/* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */

	phba->fc_linkspeed =

		 lpfc_async_link_speed_to_read_top(
@@ -5158,8 +5158,14 @@ lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 
				bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);

	phba->sli4_hba.link_state.fault =

				bf_get(lpfc_acqe_link_fault, acqe_fc);



	if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==

	    LPFC_FC_LA_TYPE_LINK_DOWN)

		phba->sli4_hba.link_state.logical_speed = 0;

	else if	(!phba->sli4_hba.conf_trunk)

		phba->sli4_hba.link_state.logical_speed =

				bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;



	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,

			"2896 Async FC event - Speed:%dGBaud Topology:x%x "

			"LA Type:x%x Port Type:%d Port Number:%d Logical speed:"