From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shrikrishna Khare Subject: [PATCH net-next 2/7] Driver: Vmxnet3: Introduce generic command interface to configure the device Date: Fri, 6 May 2016 16:12:11 -0700 Message-ID: <1462576336-83513-3-git-send-email-skhare@vmware.com> References: <1462576336-83513-1-git-send-email-skhare@vmware.com> Cc: Shrikrishna Khare , Guolin Yang To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, pv-drivers@vmware.com Return-path: In-Reply-To: <1462576336-83513-1-git-send-email-skhare@vmware.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Signed-off-by: Guolin Yang Signed-off-by: Shrikrishna Khare --- 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; }; -- 1.9.1