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| author | Alexandre Bounine <alexandre.bounine@idt.com> | 2011-05-17 15:44:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-18 02:55:22 -0700 |
| commit | 0bf2461fdd9008290cf429e50e4f362dafab4249 (patch) | |
| tree | 03e3ef8e7c55c86e428cbe9cb72af3b95c77035b /drivers/rapidio | |
| parent | a085963a2757b9ab0a7ec1cf4a14aa85935c1e2a (diff) | |
| download | linux-3.10-0bf2461fdd9008290cf429e50e4f362dafab4249.tar.gz linux-3.10-0bf2461fdd9008290cf429e50e4f362dafab4249.tar.bz2 linux-3.10-0bf2461fdd9008290cf429e50e4f362dafab4249.zip | |
rapidio: fix default routing initialization
Fix switch initialization to ensure that all switches have default routing
disabled. This guarantees that no unexpected RapidIO packets arrive to
the default port set by reset and there is no default routing destination
until it is properly configured by software.
This update also unifies handling of unmapped destinations by tsi57x, IDT
Gen1 and IDT Gen2 switches.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Thomas Moll <thomas.moll@sysgo.com>
Cc: <stable@kernel.org> [2.6.37+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio')
| -rw-r--r-- | drivers/rapidio/switches/idt_gen2.c | 9 | ||||
| -rw-r--r-- | drivers/rapidio/switches/idtcps.c | 6 | ||||
| -rw-r--r-- | drivers/rapidio/switches/tsi57x.c | 6 |
3 files changed, 21 insertions, 0 deletions
diff --git a/drivers/rapidio/switches/idt_gen2.c b/drivers/rapidio/switches/idt_gen2.c index ac2701b22e7..043ee3136e4 100644 --- a/drivers/rapidio/switches/idt_gen2.c +++ b/drivers/rapidio/switches/idt_gen2.c @@ -95,6 +95,9 @@ idtg2_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount, else table++; + if (route_port == RIO_INVALID_ROUTE) + route_port = IDT_DEFAULT_ROUTE; + rio_mport_write_config_32(mport, destid, hopcount, LOCAL_RTE_CONF_DESTID_SEL, table); @@ -411,6 +414,12 @@ static int idtg2_switch_init(struct rio_dev *rdev, int do_enum) rdev->rswitch->em_handle = idtg2_em_handler; rdev->rswitch->sw_sysfs = idtg2_sysfs; + if (do_enum) { + /* Ensure that default routing is disabled on startup */ + rio_write_config_32(rdev, + RIO_STD_RTE_DEFAULT_PORT, IDT_NO_ROUTE); + } + return 0; } diff --git a/drivers/rapidio/switches/idtcps.c b/drivers/rapidio/switches/idtcps.c index 3a971077e7b..d06ee2d44b4 100644 --- a/drivers/rapidio/switches/idtcps.c +++ b/drivers/rapidio/switches/idtcps.c @@ -26,6 +26,9 @@ idtcps_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount, { u32 result; + if (route_port == RIO_INVALID_ROUTE) + route_port = CPS_DEFAULT_ROUTE; + if (table == RIO_GLOBAL_TABLE) { rio_mport_write_config_32(mport, destid, hopcount, RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid); @@ -130,6 +133,9 @@ static int idtcps_switch_init(struct rio_dev *rdev, int do_enum) /* set TVAL = ~50us */ rio_write_config_32(rdev, rdev->phys_efptr + RIO_PORT_LINKTO_CTL_CSR, 0x8e << 8); + /* Ensure that default routing is disabled on startup */ + rio_write_config_32(rdev, + RIO_STD_RTE_DEFAULT_PORT, CPS_NO_ROUTE); } return 0; diff --git a/drivers/rapidio/switches/tsi57x.c b/drivers/rapidio/switches/tsi57x.c index 1a62934bfeb..db8b8028988 100644 --- a/drivers/rapidio/switches/tsi57x.c +++ b/drivers/rapidio/switches/tsi57x.c @@ -303,6 +303,12 @@ static int tsi57x_switch_init(struct rio_dev *rdev, int do_enum) rdev->rswitch->em_init = tsi57x_em_init; rdev->rswitch->em_handle = tsi57x_em_handler; + if (do_enum) { + /* Ensure that default routing is disabled on startup */ + rio_write_config_32(rdev, RIO_STD_RTE_DEFAULT_PORT, + RIO_INVALID_ROUTE); + } + return 0; } |