diff options
| author | James Smart <james.smart@broadcom.com> | 2016-10-14 00:06:16 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-11-08 23:29:50 +0100 |
| commit | c691816e00d0b4da376f005ffc06eec8a9711dcf (patch) | |
| tree | 4a4e00932ec0fa492c5809c7916fd39779808220 /drivers/scsi/lpfc/lpfc_init.c | |
| parent | scsi: lpfc: Correct panics with eh_timeout and eh_deadline (diff) | |
| download | linux-c691816e00d0b4da376f005ffc06eec8a9711dcf.tar.xz linux-c691816e00d0b4da376f005ffc06eec8a9711dcf.zip | |
scsi: lpfc: Synchronize link speed with boot driver
Synchronize link speed with boot driver
Link speed settings set by the boot driver are reported by the hw.
Driver will attempt to read them, and if set, will respect their
values.
The driver can override the settings with its own if instructed by
user space (via bsg), with the new values being picked up by the
boot driver.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 117c69a82786..53227e5fd2fd 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -6931,6 +6931,8 @@ lpfc_sli4_read_config(struct lpfc_hba *phba) struct lpfc_mbx_get_func_cfg *get_func_cfg; struct lpfc_rsrc_desc_fcfcoe *desc; char *pdesc_0; + uint16_t forced_link_speed; + uint32_t if_type; int length, i, rc = 0, rc2; pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); @@ -7024,6 +7026,58 @@ lpfc_sli4_read_config(struct lpfc_hba *phba) if (rc) goto read_cfg_out; + /* Update link speed if forced link speed is supported */ + if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); + if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { + forced_link_speed = + bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); + if (forced_link_speed) { + phba->hba_flag |= HBA_FORCED_LINK_SPEED; + + switch (forced_link_speed) { + case LINK_SPEED_1G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_1G; + break; + case LINK_SPEED_2G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_2G; + break; + case LINK_SPEED_4G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_4G; + break; + case LINK_SPEED_8G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_8G; + break; + case LINK_SPEED_10G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_10G; + break; + case LINK_SPEED_16G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_16G; + break; + case LINK_SPEED_32G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_32G; + break; + case 0xffff: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_AUTO; + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "0047 Unrecognized link " + "speed : %d\n", + forced_link_speed); + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_AUTO; + } + } + } + /* Reset the DFT_HBA_Q_DEPTH to the max xri */ length = phba->sli4_hba.max_cfg_param.max_xri - lpfc_sli4_get_els_iocb_cnt(phba); |