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net: dsa: mv88e6xxx: better IEEE Prio Mapping Table description 

Kill the remaining shift macro in favor of calculating at compile time
its value from the more descriptive mask, which gives us a better
representation of the register layout.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2017-06-17 23:07:14 -04:00 committed by David S. Miller
parent da16349d7e
commit ddcbabf440
2 changed files with 8 additions and 7 deletions
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11
drivers/net/dsa/mv88e6xxx/port.c
View File

@ -12,6 +12,7 @@
* (at your option) any later version.
*/
#include <linux/bitfield.h>
#include <linux/if_bridge.h>
#include <linux/phy.h>
@ -912,15 +913,13 @@ int mv88e6095_port_tag_remap(struct mv88e6xxx_chip *chip, int port)
}
static int mv88e6xxx_port_ieeepmt_write(struct mv88e6xxx_chip *chip,
int port, u16 table,
u8 pointer, u16 data)
int port, u16 table, u8 ptr, u16 data)
{
u16 reg;
reg = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_UPDATE |
table |
(pointer << MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_POINTER_SHIFT) |
data;
reg = MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_UPDATE | table |
(ptr << __bf_shf(MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_PTR_MASK)) |
(data & MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_DATA_MASK);
return mv88e6xxx_port_write(chip, port,
MV88E6390_PORT_IEEE_PRIO_MAP_TABLE, reg);

4
drivers/net/dsa/mv88e6xxx/port.h
View File

@ -222,6 +222,7 @@
/* Offset 0x18: IEEE Priority Mapping Table */
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE 0x18
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_UPDATE 0x8000
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_MASK 0x7000
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_INGRESS_PCP 0x0000
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_GREEN_PCP 0x1000
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_YELLOW_PCP 0x2000
@ -229,7 +230,8 @@
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_GREEN_DSCP 0x5000
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_YELLOW_DSCP 0x6000
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_EGRESS_AVB_DSCP 0x7000
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_POINTER_SHIFT 9
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_PTR_MASK 0x0e00
#define MV88E6390_PORT_IEEE_PRIO_MAP_TABLE_DATA_MASK 0x01ff
/* Offset 0x18: Port IEEE Priority Remapping Registers (0-3) */
#define MV88E6095_PORT_IEEE_PRIO_REMAP_0123 0x18