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rapidio: add switch domain routines 

Add switch specific domain routines required for 16-bit routing support in
switches with hierarchical implementation of routing tables.

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Thomas Moll <thomas.moll@sysgo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexandre Bounine 2010-05-26 14:44:04 -07:00 committed by Linus Torvalds
parent 058f88d672
commit 7a88d62862
5 changed files with 86 additions and 0 deletions
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33
drivers/rapidio/switches/idtcps.c
View File

@ -17,6 +17,8 @@
#define CPS_NO_ROUTE 0xdf
#define IDTCPS_RIO_DOMAIN 0xf20020
static int
idtcps_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
u16 table, u16 route_destid, u8 route_port)
@ -82,12 +84,43 @@ idtcps_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
return 0;
}
static int
idtcps_set_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
u8 sw_domain)
{
/*
* Switch domain configuration operates only at global level
*/
rio_mport_write_config_32(mport, destid, hopcount,
IDTCPS_RIO_DOMAIN, (u32)sw_domain);
return 0;
}
static int
idtcps_get_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
u8 *sw_domain)
{
u32 regval;
/*
* Switch domain configuration operates only at global level
*/
rio_mport_read_config_32(mport, destid, hopcount,
IDTCPS_RIO_DOMAIN, &regval);
*sw_domain = (u8)(regval & 0xff);
return 0;
}
static int idtcps_switch_init(struct rio_dev *rdev, int do_enum)
{
pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
rdev->rswitch->add_entry = idtcps_route_add_entry;
rdev->rswitch->get_entry = idtcps_route_get_entry;
rdev->rswitch->clr_table = idtcps_route_clr_table;
rdev->rswitch->set_domain = idtcps_set_domain;
rdev->rswitch->get_domain = idtcps_get_domain;
rdev->rswitch->em_init = NULL;
rdev->rswitch->em_handle = NULL;

2
drivers/rapidio/switches/tsi500.c
View File

@ -67,6 +67,8 @@ static int tsi500_switch_init(struct rio_dev *rdev, int do_enum)
rdev->rswitch->add_entry = tsi500_route_add_entry;
rdev->rswitch->get_entry = tsi500_route_get_entry;
rdev->rswitch->clr_table = NULL;
rdev->rswitch->set_domain = NULL;
rdev->rswitch->get_domain = NULL;
rdev->rswitch->em_init = NULL;
rdev->rswitch->em_handle = NULL;

2
drivers/rapidio/switches/tsi568.c
View File

@ -135,6 +135,8 @@ static int tsi568_switch_init(struct rio_dev *rdev, int do_enum)
rdev->rswitch->add_entry = tsi568_route_add_entry;
rdev->rswitch->get_entry = tsi568_route_get_entry;
rdev->rswitch->clr_table = tsi568_route_clr_table;
rdev->rswitch->set_domain = NULL;
rdev->rswitch->get_domain = NULL;
rdev->rswitch->em_init = tsi568_em_init;
rdev->rswitch->em_handle = NULL;

45
drivers/rapidio/switches/tsi57x.c
View File

@ -30,13 +30,17 @@
#define SPP_ROUTE_CFG_PORT(n) (0x11074 + 0x100*n)
#define TSI578_SP_MODE(n) (0x11004 + n*0x100)
#define TSI578_SP_MODE_GLBL 0x10004
#define TSI578_SP_MODE_PW_DIS 0x08000000
#define TSI578_SP_MODE_LUT_512 0x01000000
#define TSI578_SP_CTL_INDEP(n) (0x13004 + n*0x100)
#define TSI578_SP_LUT_PEINF(n) (0x13010 + n*0x100)
#define TSI578_SP_CS_TX(n) (0x13014 + n*0x100)
#define TSI578_SP_INT_STATUS(n) (0x13018 + n*0x100)
#define TSI578_GLBL_ROUTE_BASE 0x10078
static int
tsi57x_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
u16 table, u16 route_destid, u8 route_port)
@ -112,6 +116,45 @@ tsi57x_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
return 0;
}
static int
tsi57x_set_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
u8 sw_domain)
{
u32 regval;
/*
* Switch domain configuration operates only at global level
*/
/* Turn off flat (LUT_512) mode */
rio_mport_read_config_32(mport, destid, hopcount,
TSI578_SP_MODE_GLBL, &regval);
rio_mport_write_config_32(mport, destid, hopcount, TSI578_SP_MODE_GLBL,
regval & ~TSI578_SP_MODE_LUT_512);
/* Set switch domain base */
rio_mport_write_config_32(mport, destid, hopcount,
TSI578_GLBL_ROUTE_BASE,
(u32)(sw_domain << 24));
return 0;
}
static int
tsi57x_get_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
u8 *sw_domain)
{
u32 regval;
/*
* Switch domain configuration operates only at global level
*/
rio_mport_read_config_32(mport, destid, hopcount,
TSI578_GLBL_ROUTE_BASE, &regval);
*sw_domain = (u8)(regval >> 24);
return 0;
}
static int
tsi57x_em_init(struct rio_dev *rdev)
{
@ -258,6 +301,8 @@ static int tsi57x_switch_init(struct rio_dev *rdev, int do_enum)
rdev->rswitch->add_entry = tsi57x_route_add_entry;
rdev->rswitch->get_entry = tsi57x_route_get_entry;
rdev->rswitch->clr_table = tsi57x_route_clr_table;
rdev->rswitch->set_domain = tsi57x_set_domain;
rdev->rswitch->get_domain = tsi57x_get_domain;
rdev->rswitch->em_init = tsi57x_em_init;
rdev->rswitch->em_handle = tsi57x_em_handler;

4
include/linux/rio.h
View File

@ -238,6 +238,10 @@ struct rio_switch {
u16 table, u16 route_destid, u8 * route_port);
int (*clr_table) (struct rio_mport *mport, u16 destid, u8 hopcount,
u16 table);
int (*set_domain) (struct rio_mport *mport, u16 destid, u8 hopcount,
u8 sw_domain);
int (*get_domain) (struct rio_mport *mport, u16 destid, u8 hopcount,
u8 *sw_domain);
int (*em_init) (struct rio_dev *dev);
int (*em_handle) (struct rio_dev *dev, u8 swport);
};