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dpaa2-switch: add API for setting up mirroring
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Add the necessary MC API for setting up and configuring the mirroring
feature on the DPSW DPAA2 object.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ioana Ciornei authored and David S. Miller committed Jul 29, 2021
1 parent 3fa5514 commit cbc2a88
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19 changes: 19 additions & 0 deletions drivers/net/ethernet/freescale/dpaa2/dpsw-cmd.h
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Original file line number Diff line number Diff line change
Expand Up @@ -39,11 +39,16 @@
#define DPSW_CMDID_GET_IRQ_STATUS DPSW_CMD_ID(0x016)
#define DPSW_CMDID_CLEAR_IRQ_STATUS DPSW_CMD_ID(0x017)

#define DPSW_CMDID_SET_REFLECTION_IF DPSW_CMD_ID(0x022)

#define DPSW_CMDID_IF_SET_TCI DPSW_CMD_ID(0x030)
#define DPSW_CMDID_IF_SET_STP DPSW_CMD_ID(0x031)

#define DPSW_CMDID_IF_GET_COUNTER DPSW_CMD_V2(0x034)

#define DPSW_CMDID_IF_ADD_REFLECTION DPSW_CMD_ID(0x037)
#define DPSW_CMDID_IF_REMOVE_REFLECTION DPSW_CMD_ID(0x038)

#define DPSW_CMDID_IF_ENABLE DPSW_CMD_ID(0x03D)
#define DPSW_CMDID_IF_DISABLE DPSW_CMD_ID(0x03E)

Expand Down Expand Up @@ -533,5 +538,19 @@ struct dpsw_cmd_acl_entry {
__le64 pad2[4];
__le64 key_iova;
};

struct dpsw_cmd_set_reflection_if {
__le16 if_id;
};

#define DPSW_FILTER_SHIFT 0
#define DPSW_FILTER_SIZE 2

struct dpsw_cmd_if_reflection {
__le16 if_id;
__le16 vlan_id;
/* only 2 bits from the LSB */
u8 filter;
};
#pragma pack(pop)
#endif /* __FSL_DPSW_CMD_H */
80 changes: 80 additions & 0 deletions drivers/net/ethernet/freescale/dpaa2/dpsw.c
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Expand Up @@ -1579,3 +1579,83 @@ int dpsw_acl_remove_entry(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}

/**
* dpsw_set_reflection_if() - Set target interface for traffic mirrored
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPSW object
* @if_id: Interface Id
*
* Only one mirroring destination is allowed per switch
*
* Return: Completion status. '0' on Success; Error code otherwise.
*/
int dpsw_set_reflection_if(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u16 if_id)
{
struct dpsw_cmd_set_reflection_if *cmd_params;
struct fsl_mc_command cmd = { 0 };

cmd.header = mc_encode_cmd_header(DPSW_CMDID_SET_REFLECTION_IF,
cmd_flags,
token);
cmd_params = (struct dpsw_cmd_set_reflection_if *)cmd.params;
cmd_params->if_id = cpu_to_le16(if_id);

return mc_send_command(mc_io, &cmd);
}

/**
* dpsw_if_add_reflection() - Setup mirroring rule
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPSW object
* @if_id: Interface Identifier
* @cfg: Reflection configuration
*
* Return: Completion status. '0' on Success; Error code otherwise.
*/
int dpsw_if_add_reflection(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u16 if_id, const struct dpsw_reflection_cfg *cfg)
{
struct dpsw_cmd_if_reflection *cmd_params;
struct fsl_mc_command cmd = { 0 };

cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_ADD_REFLECTION,
cmd_flags,
token);
cmd_params = (struct dpsw_cmd_if_reflection *)cmd.params;
cmd_params->if_id = cpu_to_le16(if_id);
cmd_params->vlan_id = cpu_to_le16(cfg->vlan_id);
dpsw_set_field(cmd_params->filter, FILTER, cfg->filter);

return mc_send_command(mc_io, &cmd);
}

/**
* dpsw_if_remove_reflection() - Remove mirroring rule
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @token: Token of DPSW object
* @if_id: Interface Identifier
* @cfg: Reflection configuration
*
* Return: Completion status. '0' on Success; Error code otherwise.
*/
int dpsw_if_remove_reflection(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u16 if_id, const struct dpsw_reflection_cfg *cfg)
{
struct dpsw_cmd_if_reflection *cmd_params;
struct fsl_mc_command cmd = { 0 };

cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_REMOVE_REFLECTION,
cmd_flags,
token);
cmd_params = (struct dpsw_cmd_if_reflection *)cmd.params;
cmd_params->if_id = cpu_to_le16(if_id);
cmd_params->vlan_id = cpu_to_le16(cfg->vlan_id);
dpsw_set_field(cmd_params->filter, FILTER, cfg->filter);

return mc_send_command(mc_io, &cmd);
}
31 changes: 31 additions & 0 deletions drivers/net/ethernet/freescale/dpaa2/dpsw.h
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Original file line number Diff line number Diff line change
Expand Up @@ -752,4 +752,35 @@ int dpsw_acl_add_entry(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,

int dpsw_acl_remove_entry(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u16 acl_id, const struct dpsw_acl_entry_cfg *cfg);

/**
* enum dpsw_reflection_filter - Filter type for frames to be reflected
* @DPSW_REFLECTION_FILTER_INGRESS_ALL: Reflect all frames
* @DPSW_REFLECTION_FILTER_INGRESS_VLAN: Reflect only frames that belong to
* the particular VLAN defined by vid parameter
*
*/
enum dpsw_reflection_filter {
DPSW_REFLECTION_FILTER_INGRESS_ALL = 0,
DPSW_REFLECTION_FILTER_INGRESS_VLAN = 1
};

/**
* struct dpsw_reflection_cfg - Structure representing the mirroring config
* @filter: Filter type for frames to be mirrored
* @vlan_id: VLAN ID to mirror; valid only when the type is DPSW_INGRESS_VLAN
*/
struct dpsw_reflection_cfg {
enum dpsw_reflection_filter filter;
u16 vlan_id;
};

int dpsw_set_reflection_if(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u16 if_id);

int dpsw_if_add_reflection(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u16 if_id, const struct dpsw_reflection_cfg *cfg);

int dpsw_if_remove_reflection(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u16 if_id, const struct dpsw_reflection_cfg *cfg);
#endif /* __FSL_DPSW_H */

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