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dpaa2-mac: add the MC API for reconfiguring the protocol 

The MC firmware gained recently a new command which can reconfigure the
running protocol on the underlying MAC. Add this new command which will
be used in the next patches in order to do a major reconfig on the
interface.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ioana Ciornei 2022-03-11 23:22:24 +02:00 committed by David S. Miller
parent 38d28b02a0
commit 332b9ea59e
3 changed files with 31 additions and 0 deletions
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5
drivers/net/ethernet/freescale/dpaa2/dpmac-cmd.h
View File

@ -26,6 +26,8 @@
#define DPMAC_CMDID_GET_COUNTER DPMAC_CMD(0x0c4)
#define DPMAC_CMDID_SET_PROTOCOL DPMAC_CMD(0x0c7)
/* Macros for accessing command fields smaller than 1byte */
#define DPMAC_MASK(field) \
GENMASK(DPMAC_##field##_SHIFT + DPMAC_##field##_SIZE - 1, \
@ -77,4 +79,7 @@ struct dpmac_rsp_get_api_version {
__le16 minor;
};
struct dpmac_cmd_set_protocol {
u8 eth_if;
};
#endif /* _FSL_DPMAC_CMD_H */

23
drivers/net/ethernet/freescale/dpaa2/dpmac.c
View File

@ -212,3 +212,26 @@ int dpmac_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags,
return 0;
}
/**
* dpmac_set_protocol() - Reconfigure the DPMAC protocol
* @mc_io: Pointer to opaque I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPMAC object
* @protocol: New protocol for the DPMAC to be reconfigured in.
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmac_set_protocol(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
enum dpmac_eth_if protocol)
{
struct dpmac_cmd_set_protocol *cmd_params;
struct fsl_mc_command cmd = { 0 };
cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_PROTOCOL,
cmd_flags, token);
cmd_params = (struct dpmac_cmd_set_protocol *)cmd.params;
cmd_params->eth_if = protocol;
return mc_send_command(mc_io, &cmd);
}

3
drivers/net/ethernet/freescale/dpaa2/dpmac.h
View File

@ -207,4 +207,7 @@ int dpmac_get_counter(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
int dpmac_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags,
u16 *major_ver, u16 *minor_ver);
int dpmac_set_protocol(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
enum dpmac_eth_if protocol);
#endif /* __FSL_DPMAC_H */