[SCSI] lpfc 8.3.25: Enhancements to Debug infrastructure
Enhancements to Debug infrastructure
- debugfs additions for new hardware.
- Correct stack overflow in lpfc_debugfs_dumpHBASlim_data()
- Correct warning on uninitialized reg_val in lpfc_idiag_drbacc_write()
- Separated the iDiag command for capturing mailbox commands for generic
issue mailbox command entry point and for BSG multi-buffer handling.
- Added capturing dumping capabiliy of mailbox command and external buffer
for the completion of the mailbox command so that the outcome can be
examined.
- Changed all the iDiag command structure data array indexing introduced so
far with properly defined macros.
- Added SLI4 device PCI BAR memory mapped register read/browse, write-by-
value, set-bit, and clear-bit methods for both interface type 0 and
interface type 2.
- Corrected warnings on mbxstatus being uninitialized in error paths in
lpfc_bsg.c
Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 80ca11c..fa5bc14 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -810,6 +810,7 @@
lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
{
struct completion online_compl;
+ struct pci_dev *pdev = phba->pcidev;
uint32_t reg_val;
int status = 0;
int rc;
@@ -822,6 +823,14 @@
LPFC_SLI_INTF_IF_TYPE_2))
return -EPERM;
+ if (!pdev->is_physfn)
+ return -EPERM;
+
+ /* Disable SR-IOV virtual functions if enabled */
+ if (phba->cfg_sriov_nr_virtfn) {
+ pci_disable_sriov(pdev);
+ phba->cfg_sriov_nr_virtfn = 0;
+ }
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
if (status != 0)