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switchtec: Add Global Fabric Manager Server (GFMS) event 

Add a new event type that is newly exposed by recent firmware. The event
will never occur if the firmware is too old. If user space tries to use
this event in an older kernel, it will just get an EINVAL which is
perfectly acceptable in the existing user space code.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Logan Gunthorpe 2017-11-29 10:28:43 -07:00 committed by Bjorn Helgaas
parent 1291a0d504
commit f0edce7a7f
3 changed files with 6 additions and 1 deletions
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1
drivers/pci/switch/switchtec.c
View File

@ -707,6 +707,7 @@ static const struct event_reg {
EV_GLB(SWITCHTEC_IOCTL_EVENT_CLI_MRPC_COMP_ASYNC, EV_GLB(SWITCHTEC_IOCTL_EVENT_CLI_MRPC_COMP_ASYNC,
cli_mrpc_comp_async_hdr), cli_mrpc_comp_async_hdr),
EV_GLB(SWITCHTEC_IOCTL_EVENT_GPIO_INT, gpio_interrupt_hdr), EV_GLB(SWITCHTEC_IOCTL_EVENT_GPIO_INT, gpio_interrupt_hdr),
EV_GLB(SWITCHTEC_IOCTL_EVENT_GFMS, gfms_event_hdr),
EV_PAR(SWITCHTEC_IOCTL_EVENT_PART_RESET, part_reset_hdr), EV_PAR(SWITCHTEC_IOCTL_EVENT_PART_RESET, part_reset_hdr),
EV_PAR(SWITCHTEC_IOCTL_EVENT_MRPC_COMP, mrpc_comp_hdr), EV_PAR(SWITCHTEC_IOCTL_EVENT_MRPC_COMP, mrpc_comp_hdr),
EV_PAR(SWITCHTEC_IOCTL_EVENT_MRPC_COMP_ASYNC, mrpc_comp_async_hdr), EV_PAR(SWITCHTEC_IOCTL_EVENT_MRPC_COMP_ASYNC, mrpc_comp_async_hdr),

3
include/linux/switchtec.h
View File

@ -100,6 +100,9 @@ struct sw_event_regs {
u32 gpio_interrupt_hdr; u32 gpio_interrupt_hdr;
u32 gpio_interrupt_data; u32 gpio_interrupt_data;
u32 reserved16[4]; u32 reserved16[4];
u32 gfms_event_hdr;
u32 gfms_event_data;
u32 reserved17[4];
} __packed; } __packed;
enum { enum {

3
include/uapi/linux/switchtec_ioctl.h
View File

@ -88,7 +88,8 @@ struct switchtec_ioctl_event_summary {
#define SWITCHTEC_IOCTL_EVENT_FORCE_SPEED 26 #define SWITCHTEC_IOCTL_EVENT_FORCE_SPEED 26
#define SWITCHTEC_IOCTL_EVENT_CREDIT_TIMEOUT 27 #define SWITCHTEC_IOCTL_EVENT_CREDIT_TIMEOUT 27
#define SWITCHTEC_IOCTL_EVENT_LINK_STATE 28 #define SWITCHTEC_IOCTL_EVENT_LINK_STATE 28
#define SWITCHTEC_IOCTL_MAX_EVENTS 29 #define SWITCHTEC_IOCTL_EVENT_GFMS 29
#define SWITCHTEC_IOCTL_MAX_EVENTS 30
#define SWITCHTEC_IOCTL_EVENT_LOCAL_PART_IDX -1 #define SWITCHTEC_IOCTL_EVENT_LOCAL_PART_IDX -1
#define SWITCHTEC_IOCTL_EVENT_IDX_ALL -2 #define SWITCHTEC_IOCTL_EVENT_IDX_ALL -2