From 6bfb1620829825c01e1dcdd63b6a7700352babd9 Mon Sep 17 00:00:00 2001 From: James Smart Date: Mon, 4 Nov 2019 16:56:59 -0800 Subject: scsi: lpfc: Fix configuration of BB credit recovery in service parameters The driver today is reading service parameters from the firmware and then overwriting the firmware-provided values with values of its own. There are some switch features that require preliminary FLOGI's that are switch-specific and done prior to the actual fabric FLOGI for traffic. The fw will perform those FLOGIs and will revise the service parameters for the features configured. As the driver later overwrites those values with its own values, it misconfigures things like BBSCN use by doing so. Correct by eliminating the driver-overwrite of firmware values. The driver correctly re-reads the service parameters after each link up to obtain the latest values from firmware. Link: https://lore.kernel.org/r/20191105005708.7399-3-jsmart2021@gmail.com Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_hbadisc.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 40075b391546..88507aa4e920 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1138,7 +1138,6 @@ void lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) { struct lpfc_vport *vport = pmb->vport; - uint8_t bbscn = 0; if (pmb->u.mb.mbxStatus) goto out; @@ -1165,17 +1164,11 @@ lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) /* Start discovery by sending a FLOGI. port_state is identically * LPFC_FLOGI while waiting for FLOGI cmpl */ - if (vport->port_state != LPFC_FLOGI) { - if (phba->bbcredit_support && phba->cfg_enable_bbcr) { - bbscn = bf_get(lpfc_bbscn_def, - &phba->sli4_hba.bbscn_params); - vport->fc_sparam.cmn.bbRcvSizeMsb &= 0xf; - vport->fc_sparam.cmn.bbRcvSizeMsb |= (bbscn << 4); - } + if (vport->port_state != LPFC_FLOGI) lpfc_initial_flogi(vport); - } else if (vport->fc_flag & FC_PT2PT) { + else if (vport->fc_flag & FC_PT2PT) lpfc_disc_start(vport); - } + return; out: -- cgit