diff options
| author | James Smart <jsmart2021@gmail.com> | 2018-12-14 02:17:57 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-12-20 06:13:08 +0300 |
| commit | 5021267af1327724a6f1859bb1594660a4c22bd3 (patch) | |
| tree | 73ab97053f7adf65b9b4c5fee475622103592525 /drivers/scsi/lpfc/lpfc_hw4.h | |
| parent | 72ca6b2220ed24c0f7b0dd4e3617e82dcda60ef1 (diff) | |
| download | linux-5021267af1327724a6f1859bb1594660a4c22bd3.tar.xz | |
scsi: lpfc: Adding ability to reset chip via pci bus reset
This patch adds a "pci_bus_reset" option to the board_mode sysfs attribute.
This option uses the pci_reset_bus() api to reset the PCIe link the adapter
is on, which will reset the chip/adapter. Prior to issuing this option,
all functions on the same chip must be placed in the offline state by the
admin. After the reset, all of the instances may be brought online again.
The primary purpose of this functionality is to support cases where
firmware update required a chip reset but the admin did not want to reboot
the machine in order to instantiate the firmware update.
Sanity checks take place prior to the reset to ensure the adapter is the
sole entity on the PCIe bus and that all functions are in the offline
state.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_hw4.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_hw4.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index 4e7fa3c44eee..c15b9b6fb840 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -3850,6 +3850,9 @@ struct lpfc_mbx_wr_object { #define lpfc_wr_object_eof_SHIFT 31 #define lpfc_wr_object_eof_MASK 0x00000001 #define lpfc_wr_object_eof_WORD word4 +#define lpfc_wr_object_eas_SHIFT 29 +#define lpfc_wr_object_eas_MASK 0x00000001 +#define lpfc_wr_object_eas_WORD word4 #define lpfc_wr_object_write_length_SHIFT 0 #define lpfc_wr_object_write_length_MASK 0x00FFFFFF #define lpfc_wr_object_write_length_WORD word4 @@ -3860,6 +3863,15 @@ struct lpfc_mbx_wr_object { } request; struct { uint32_t actual_write_length; + uint32_t word5; +#define lpfc_wr_object_change_status_SHIFT 0 +#define lpfc_wr_object_change_status_MASK 0x000000FF +#define lpfc_wr_object_change_status_WORD word5 +#define LPFC_CHANGE_STATUS_NO_RESET_NEEDED 0x00 +#define LPFC_CHANGE_STATUS_PHYS_DEV_RESET 0x01 +#define LPFC_CHANGE_STATUS_FW_RESET 0x02 +#define LPFC_CHANGE_STATUS_PORT_MIGRATION 0x04 +#define LPFC_CHANGE_STATUS_PCI_RESET 0x05 } response; } u; }; |