redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

PCI/switchtec: Add Gen4 system info register support 

Add the Gen4-specific system info registers and ensure their usage is
guarded by a check on the device's generation.

Link: https://lore.kernel.org/r/20200115035648.2578-6-logang@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
alistair/sensors
Logan Gunthorpe 2020-01-14 20:56:46 -07:00 committed by Bjorn Helgaas
parent 993d208daa
commit a3321ca394
2 changed files with 48 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/pci/switch/switchtec.c
View File

@ -321,6 +321,9 @@ static ssize_t field ## _show(struct device *dev, \
if (stdev->gen == SWITCHTEC_GEN3) \
return io_string_show(buf, &si->gen3.field, \
sizeof(si->gen3.field)); \
else if (stdev->gen == SWITCHTEC_GEN4) \
return io_string_show(buf, &si->gen4.field, \
sizeof(si->gen4.field)); \
else \
return -ENOTSUPP; \
} \
@ -1429,6 +1432,8 @@ static int switchtec_init_pci(struct switchtec_dev *stdev,
if (stdev->gen == SWITCHTEC_GEN3)
part_id = &stdev->mmio_sys_info->gen3.partition_id;
else if (stdev->gen == SWITCHTEC_GEN4)
part_id = &stdev->mmio_sys_info->gen4.partition_id;
else
return -ENOTSUPP;

43
include/linux/switchtec.h
View File

@ -34,6 +34,7 @@ enum {
enum switchtec_gen {
SWITCHTEC_GEN3,
SWITCHTEC_GEN4,
};
struct mrpc_regs {
@ -125,12 +126,54 @@ struct sys_info_regs_gen3 {
u8 component_revision;
} __packed;
struct sys_info_regs_gen4 {
u16 gas_layout_ver;
u8 evlist_ver;
u8 reserved1;
u16 mgmt_cmd_set_ver;
u16 fabric_cmd_set_ver;
u32 reserved2[2];
u8 mrpc_uart_ver;
u8 mrpc_twi_ver;
u8 mrpc_eth_ver;
u8 mrpc_inband_ver;
u32 reserved3[7];
u32 fw_update_tmo;
u32 xml_version_cfg;
u32 xml_version_img;
u32 partition_id;
u16 bl2_running;
u16 cfg_running;
u16 img_running;
u16 key_running;
u32 reserved4[43];
u32 vendor_seeprom_twi;
u32 vendor_table_revision;
u32 vendor_specific_info[2];
u16 p2p_vendor_id;
u16 p2p_device_id;
u8 p2p_revision_id;
u8 reserved5[3];
u32 p2p_class_id;
u16 subsystem_vendor_id;
u16 subsystem_id;
u32 p2p_serial_number[2];
u8 mac_addr[6];
u8 reserved6[2];
u32 reserved7[3];
char vendor_id[8];
char product_id[24];
char product_revision[2];
u16 reserved8;
} __packed;
struct sys_info_regs {
u32 device_id;
u32 device_version;
u32 firmware_version;
union {
struct sys_info_regs_gen3 gen3;
struct sys_info_regs_gen4 gen4;
};
} __packed;