diff options
| author | James Smart <james.smart@broadcom.com> | 2016-10-14 01:06:16 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-11-09 01:29:50 +0300 |
| commit | c691816e00d0b4da376f005ffc06eec8a9711dcf (patch) | |
| tree | 4a4e00932ec0fa492c5809c7916fd39779808220 /drivers/scsi/lpfc/lpfc_attr.c | |
| parent | 89533e9be08aeda5cdc4600d46c1540c7b440299 (diff) | |
| download | linux-c691816e00d0b4da376f005ffc06eec8a9711dcf.tar.xz | |
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_attr.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_attr.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 3740e5d168a2..c84775562c65 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -3668,7 +3668,12 @@ lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, int nolip = 0; const char *val_buf = buf; int err; - uint32_t prev_val; + uint32_t prev_val, if_type; + + if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); + if (if_type == LPFC_SLI_INTF_IF_TYPE_2 && + phba->hba_flag & HBA_FORCED_LINK_SPEED) + return -EPERM; if (!strncmp(buf, "nolip ", strlen("nolip "))) { nolip = 1; |