Commit a6b0ef9a authored by Logan Gunthorpe's avatar Logan Gunthorpe Committed by Bjorn Helgaas
Browse files

PCI/switchtec: Add support for Intercomm Notify and Upstream Error Containment 

Add support for the Inter Fabric Manager Communication (Intercomm) Notify
event in PAX variants of Switchtec hardware and the Upstream Error
Containment port in the MR1 release of Gen3 firmware.

Link: https://lore.kernel.org/r/20200106190337.2428-4-logang@deltatee.com


Signed-off-by: default avatarLogan Gunthorpe <logang@deltatee.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 9375646b

drivers/pci/switch/switchtec.c

+3 −0
Original line number Diff line number Diff line
@@ -751,10 +751,13 @@ static const struct event_reg { 
	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_DYN_PART_BIND_COMP, dyn_binding_hdr),

	EV_PAR(SWITCHTEC_IOCTL_EVENT_INTERCOMM_REQ_NOTIFY,

	       intercomm_notify_hdr),

	EV_PFF(SWITCHTEC_IOCTL_EVENT_AER_IN_P2P, aer_in_p2p_hdr),

	EV_PFF(SWITCHTEC_IOCTL_EVENT_AER_IN_VEP, aer_in_vep_hdr),

	EV_PFF(SWITCHTEC_IOCTL_EVENT_DPC, dpc_hdr),

	EV_PFF(SWITCHTEC_IOCTL_EVENT_CTS, cts_hdr),

	EV_PFF(SWITCHTEC_IOCTL_EVENT_UEC, uec_hdr),

	EV_PFF(SWITCHTEC_IOCTL_EVENT_HOTPLUG, hotplug_hdr),

	EV_PFF(SWITCHTEC_IOCTL_EVENT_IER, ier_hdr),

	EV_PFF(SWITCHTEC_IOCTL_EVENT_THRESH, threshold_hdr),

include/linux/switchtec.h

+5 −2
Original line number Diff line number Diff line
@@ -196,7 +196,9 @@ struct part_cfg_regs { 
	u32 mrpc_comp_async_data[5];

	u32 dyn_binding_hdr;

	u32 dyn_binding_data[5];

	u32 reserved4[159];

	u32 intercomm_notify_hdr;

	u32 intercomm_notify_data[5];

	u32 reserved4[153];

} __packed;



enum {
@@ -320,7 +322,8 @@ struct pff_csr_regs { 
	u32 dpc_data[5];

	u32 cts_hdr;

	u32 cts_data[5];

	u32 reserved3[6];

	u32 uec_hdr;

	u32 uec_data[5];

	u32 hotplug_hdr;

	u32 hotplug_data[5];

	u32 ier_hdr;

include/uapi/linux/switchtec_ioctl.h

+3 −1
Original line number Diff line number Diff line
@@ -98,7 +98,9 @@ struct switchtec_ioctl_event_summary { 
#define SWITCHTEC_IOCTL_EVENT_CREDIT_TIMEOUT		27

#define SWITCHTEC_IOCTL_EVENT_LINK_STATE		28

#define SWITCHTEC_IOCTL_EVENT_GFMS			29

#define SWITCHTEC_IOCTL_MAX_EVENTS			30

#define SWITCHTEC_IOCTL_EVENT_INTERCOMM_REQ_NOTIFY	30

#define SWITCHTEC_IOCTL_EVENT_UEC			31

#define SWITCHTEC_IOCTL_MAX_EVENTS			32



#define SWITCHTEC_IOCTL_EVENT_LOCAL_PART_IDX -1

#define SWITCHTEC_IOCTL_EVENT_IDX_ALL -2

CRA Git | Maintained and supported by SUSTech CRA and CCSE