diff options
| author | Wesley Sheng <wesley.sheng@microchip.com> | 2019-04-15 17:41:41 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2019-04-18 01:20:01 +0300 |
| commit | ba8a39820d4614b2b04ac74a48d1f8de677de750 (patch) | |
| tree | 9417afa76040060adf44718e3548f4d1748cc614 /include/linux | |
| parent | 9e98c678c2d6ae3a17cb2de55d17f69dddaa231b (diff) | |
| download | linux-ba8a39820d4614b2b04ac74a48d1f8de677de750.tar.xz | |
switchtec: Increase PFF limit from 48 to 255
The Switchtec devices supports two PCIe Function Frameworks (PFFs) per
upstream port (one for the port itself and one for the management endoint),
and each PFF may have up to 255 ports. Previously the driver only
supported 48 of those ports, and the SWITCHTEC_IOCTL_EVENT_SUMMARY ioctl
only returned information about those 48.
Increase SWITCHTEC_MAX_PFF_CSR from 48 to 255 so the driver supports all
255 possible ports.
Rename SWITCHTEC_IOCTL_EVENT_SUMMARY and associated struct
switchtec_ioctl_event_summary to SWITCHTEC_IOCTL_EVENT_SUMMARY_LEGACY and
switchtec_ioctl_event_summary_legacy with so existing applications work
unchanged, supporting up to 48 ports.
Add replacement SWITCHTEC_IOCTL_EVENT_SUMMARY and struct
switchtec_ioctl_event_summary that new and recompiled applications support
up to 255 ports.
Signed-off-by: Wesley Sheng <wesley.sheng@microchip.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/switchtec.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/switchtec.h b/include/linux/switchtec.h index 52a079b3a9a6..0cfc34ac37fb 100644 --- a/include/linux/switchtec.h +++ b/include/linux/switchtec.h @@ -20,7 +20,7 @@ #include <linux/cdev.h> #define SWITCHTEC_MRPC_PAYLOAD_SIZE 1024 -#define SWITCHTEC_MAX_PFF_CSR 48 +#define SWITCHTEC_MAX_PFF_CSR 255 #define SWITCHTEC_EVENT_OCCURRED BIT(0) #define SWITCHTEC_EVENT_CLEAR BIT(0) |