[PATCH net-next v4 2/7] vmxnet3: introduce generic command interface to configure the device
From: Shrikrishna Khare <hidden>
Date: 2016-06-14 18:54:57
Also in:
lkml
Subsystem:
networking drivers, the rest, vmware vmxnet3 ethernet driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Ronak Doshi
Signed-off-by: Guolin Yang <redacted> Signed-off-by: Shrikrishna Khare <redacted> --- drivers/net/vmxnet3/vmxnet3_defs.h | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index 8345e0c..a26a69d 100644
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h@@ -79,6 +79,7 @@ enum { VMXNET3_CMD_RESERVED1, VMXNET3_CMD_LOAD_PLUGIN, VMXNET3_CMD_RESERVED2, + VMXNET3_CMD_RESERVED3, VMXNET3_CMD_FIRST_GET = 0xF00D0000, VMXNET3_CMD_GET_QUEUE_STATUS = VMXNET3_CMD_FIRST_GET,
@@ -612,6 +613,18 @@ struct Vmxnet3_RxQueueDesc { u8 __pad[88]; /* 128 aligned */ }; +struct Vmxnet3_SetPolling { + u8 enablePolling; +}; + +/* If the command data <= 16 bytes, use the shared memory directly. + * otherwise, use variable length configuration descriptor. + */ +union Vmxnet3_CmdInfo { + struct Vmxnet3_VariableLenConfDesc varConf; + struct Vmxnet3_SetPolling setPolling; + __le64 data[2]; +}; struct Vmxnet3_DSDevRead { /* read-only region for device, read by dev in response to a SET cmd */
@@ -630,7 +643,14 @@ struct Vmxnet3_DriverShared { __le32 pad; struct Vmxnet3_DSDevRead devRead; __le32 ecr; - __le32 reserved[5]; + __le32 reserved; + union { + __le32 reserved1[4]; + union Vmxnet3_CmdInfo cmdInfo; /* only valid in the context of + * executing the relevant + * command + */ + } cu; };
--
2.8.2