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-rw-r--r--drivers/rapidio/Kconfig24
-rw-r--r--drivers/rapidio/Makefile4
-rw-r--r--drivers/rapidio/rio-scan.c424
-rw-r--r--drivers/rapidio/rio.c433
-rw-r--r--drivers/rapidio/rio.h44
-rw-r--r--drivers/rapidio/switches/Kconfig28
-rw-r--r--drivers/rapidio/switches/Makefile9
-rw-r--r--drivers/rapidio/switches/idtcps.c137
-rw-r--r--drivers/rapidio/switches/tsi500.c20
-rw-r--r--drivers/rapidio/switches/tsi568.c146
-rw-r--r--drivers/rapidio/switches/tsi57x.c315
11 files changed, 1498 insertions, 86 deletions
diff --git a/drivers/rapidio/Kconfig b/drivers/rapidio/Kconfig
index c32822ad84a4..070211a5955c 100644
--- a/drivers/rapidio/Kconfig
+++ b/drivers/rapidio/Kconfig
@@ -8,3 +8,27 @@ config RAPIDIO_DISC_TIMEOUT
---help---
Amount of time a discovery node waits for a host to complete
enumeration before giving up.
+
+config RAPIDIO_ENABLE_RX_TX_PORTS
+ bool "Enable RapidIO Input/Output Ports"
+ depends on RAPIDIO
+ ---help---
+ The RapidIO specification describes a Output port transmit
+ enable and a Input port receive enable. The recommended state
+ for Input ports and Output ports should be disabled. When
+ this switch is set the RapidIO subsystem will enable all
+ ports for Input/Output direction to allow other traffic
+ than Maintenance transfers.
+
+source "drivers/rapidio/switches/Kconfig"
+
+config RAPIDIO_DEBUG
+ bool "RapidIO subsystem debug messages"
+ depends on RAPIDIO
+ help
+ Say Y here if you want the RapidIO subsystem to produce a bunch of
+ debug messages to the system log. Select this if you are having a
+ problem with the RapidIO subsystem and want to see more of what is
+ going on.
+
+ If you are unsure about this, say N here.
diff --git a/drivers/rapidio/Makefile b/drivers/rapidio/Makefile
index 7c0e1818de51..b6139fe187bf 100644
--- a/drivers/rapidio/Makefile
+++ b/drivers/rapidio/Makefile
@@ -4,3 +4,7 @@
obj-y += rio.o rio-access.o rio-driver.o rio-scan.o rio-sysfs.o
obj-$(CONFIG_RAPIDIO) += switches/
+
+ifeq ($(CONFIG_RAPIDIO_DEBUG),y)
+EXTRA_CFLAGS += -DDEBUG
+endif
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index 45415096c294..8070e074c739 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -4,6 +4,14 @@
* Copyright 2005 MontaVista Software, Inc.
* Matt Porter <mporter@kernel.crashing.org>
*
+ * Copyright 2009 Integrated Device Technology, Inc.
+ * Alex Bounine <alexandre.bounine@idt.com>
+ * - Added Port-Write/Error Management initialization and handling
+ *
+ * Copyright 2009 Sysgo AG
+ * Thomas Moll <thomas.moll@sysgo.com>
+ * - Added Input- Output- enable functionality, to allow full communication
+ *
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
@@ -31,15 +39,16 @@
LIST_HEAD(rio_devices);
static LIST_HEAD(rio_switches);
-#define RIO_ENUM_CMPL_MAGIC 0xdeadbeef
-
static void rio_enum_timeout(unsigned long);
+static void rio_init_em(struct rio_dev *rdev);
+
DEFINE_SPINLOCK(rio_global_list_lock);
static int next_destid = 0;
static int next_switchid = 0;
static int next_net = 0;
+static int next_comptag;
static struct timer_list rio_enum_timer =
TIMER_INITIALIZER(rio_enum_timeout, 0, 0);
@@ -52,12 +61,6 @@ static int rio_mport_phys_table[] = {
-1,
};
-static int rio_sport_phys_table[] = {
- RIO_EFB_PAR_EP_FREE_ID,
- RIO_EFB_SER_EP_FREE_ID,
- -1,
-};
-
/**
* rio_get_device_id - Get the base/extended device id for a device
* @port: RIO master port
@@ -118,12 +121,26 @@ static int rio_clear_locks(struct rio_mport *port)
u32 result;
int ret = 0;
- /* Write component tag CSR magic complete value */
- rio_local_write_config_32(port, RIO_COMPONENT_TAG_CSR,
- RIO_ENUM_CMPL_MAGIC);
- list_for_each_entry(rdev, &rio_devices, global_list)
- rio_write_config_32(rdev, RIO_COMPONENT_TAG_CSR,
- RIO_ENUM_CMPL_MAGIC);
+ /* Assign component tag to all devices */
+ next_comptag = 1;
+ rio_local_write_config_32(port, RIO_COMPONENT_TAG_CSR, next_comptag++);
+
+ list_for_each_entry(rdev, &rio_devices, global_list) {
+ /* Mark device as discovered */
+ rio_read_config_32(rdev,
+ rdev->phys_efptr + RIO_PORT_GEN_CTL_CSR,
+ &result);
+ rio_write_config_32(rdev,
+ rdev->phys_efptr + RIO_PORT_GEN_CTL_CSR,
+ result | RIO_PORT_GEN_DISCOVERED);
+
+ rio_write_config_32(rdev, RIO_COMPONENT_TAG_CSR, next_comptag);
+ rdev->comp_tag = next_comptag++;
+ if (next_comptag >= 0x10000) {
+ pr_err("RIO: Component Tag Counter Overflow\n");
+ break;
+ }
+ }
/* Release host device id locks */
rio_local_write_config_32(port, RIO_HOST_DID_LOCK_CSR,
@@ -229,27 +246,37 @@ static int rio_is_switch(struct rio_dev *rdev)
}
/**
- * rio_route_set_ops- Sets routing operations for a particular vendor switch
+ * rio_switch_init - Sets switch operations for a particular vendor switch
* @rdev: RIO device
+ * @do_enum: Enumeration/Discovery mode flag
*
- * Searches the RIO route ops table for known switch types. If the vid
- * and did match a switch table entry, then set the add_entry() and
- * get_entry() ops to the table entry values.
+ * Searches the RIO switch ops table for known switch types. If the vid
+ * and did match a switch table entry, then call switch initialization
+ * routine to setup switch-specific routines.
*/
-static void rio_route_set_ops(struct rio_dev *rdev)
+static void rio_switch_init(struct rio_dev *rdev, int do_enum)
{
- struct rio_route_ops *cur = __start_rio_route_ops;
- struct rio_route_ops *end = __end_rio_route_ops;
+ struct rio_switch_ops *cur = __start_rio_switch_ops;
+ struct rio_switch_ops *end = __end_rio_switch_ops;
while (cur < end) {
if ((cur->vid == rdev->vid) && (cur->did == rdev->did)) {
- pr_debug("RIO: adding routing ops for %s\n", rio_name(rdev));
- rdev->rswitch->add_entry = cur->add_hook;
- rdev->rswitch->get_entry = cur->get_hook;
+ pr_debug("RIO: calling init routine for %s\n",
+ rio_name(rdev));
+ cur->init_hook(rdev, do_enum);
+ break;
}
cur++;
}
+ if ((cur >= end) && (rdev->pef & RIO_PEF_STD_RT)) {
+ pr_debug("RIO: adding STD routing ops for %s\n",
+ rio_name(rdev));
+ rdev->rswitch->add_entry = rio_std_route_add_entry;
+ rdev->rswitch->get_entry = rio_std_route_get_entry;
+ rdev->rswitch->clr_table = rio_std_route_clr_table;
+ }
+
if (!rdev->rswitch->add_entry || !rdev->rswitch->get_entry)
printk(KERN_ERR "RIO: missing routing ops for %s\n",
rio_name(rdev));
@@ -281,6 +308,65 @@ static int __devinit rio_add_device(struct rio_dev *rdev)
}
/**
+ * rio_enable_rx_tx_port - enable input reciever and output transmitter of
+ * given port
+ * @port: Master port associated with the RIO network
+ * @local: local=1 select local port otherwise a far device is reached
+ * @destid: Destination ID of the device to check host bit
+ * @hopcount: Number of hops to reach the target
+ * @port_num: Port (-number on switch) to enable on a far end device
+ *
+ * Returns 0 or 1 from on General Control Command and Status Register
+ * (EXT_PTR+0x3C)
+ */
+inline int rio_enable_rx_tx_port(struct rio_mport *port,
+ int local, u16 destid,
+ u8 hopcount, u8 port_num) {
+#ifdef CONFIG_RAPIDIO_ENABLE_RX_TX_PORTS
+ u32 regval;
+ u32 ext_ftr_ptr;
+
+ /*
+ * enable rx input tx output port
+ */
+ pr_debug("rio_enable_rx_tx_port(local = %d, destid = %d, hopcount = "
+ "%d, port_num = %d)\n", local, destid, hopcount, port_num);
+
+ ext_ftr_ptr = rio_mport_get_physefb(port, local, destid, hopcount);
+
+ if (local) {
+ rio_local_read_config_32(port, ext_ftr_ptr +
+ RIO_PORT_N_CTL_CSR(0),
+ &regval);
+ } else {
+ if (rio_mport_read_config_32(port, destid, hopcount,
+ ext_ftr_ptr + RIO_PORT_N_CTL_CSR(port_num), &regval) < 0)
+ return -EIO;
+ }
+
+ if (regval & RIO_PORT_N_CTL_P_TYP_SER) {
+ /* serial */
+ regval = regval | RIO_PORT_N_CTL_EN_RX_SER
+ | RIO_PORT_N_CTL_EN_TX_SER;
+ } else {
+ /* parallel */
+ regval = regval | RIO_PORT_N_CTL_EN_RX_PAR
+ | RIO_PORT_N_CTL_EN_TX_PAR;
+ }
+
+ if (local) {
+ rio_local_write_config_32(port, ext_ftr_ptr +
+ RIO_PORT_N_CTL_CSR(0), regval);
+ } else {
+ if (rio_mport_write_config_32(port, destid, hopcount,
+ ext_ftr_ptr + RIO_PORT_N_CTL_CSR(port_num), regval) < 0)
+ return -EIO;
+ }
+#endif
+ return 0;
+}
+
+/**
* rio_setup_device- Allocates and sets up a RIO device
* @net: RIO network
* @port: Master port to send transactions
@@ -325,8 +411,14 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
rdev->asm_rev = result >> 16;
rio_mport_read_config_32(port, destid, hopcount, RIO_PEF_CAR,
&rdev->pef);
- if (rdev->pef & RIO_PEF_EXT_FEATURES)
+ if (rdev->pef & RIO_PEF_EXT_FEATURES) {
rdev->efptr = result & 0xffff;
+ rdev->phys_efptr = rio_mport_get_physefb(port, 0, destid,
+ hopcount);
+
+ rdev->em_efptr = rio_mport_get_feature(port, 0, destid,
+ hopcount, RIO_EFB_ERR_MGMNT);
+ }
rio_mport_read_config_32(port, destid, hopcount, RIO_SRC_OPS_CAR,
&rdev->src_ops);
@@ -349,12 +441,13 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
if (rio_is_switch(rdev)) {
rio_mport_read_config_32(port, destid, hopcount,
RIO_SWP_INFO_CAR, &rdev->swpinfo);
- rswitch = kmalloc(sizeof(struct rio_switch), GFP_KERNEL);
+ rswitch = kzalloc(sizeof(struct rio_switch), GFP_KERNEL);
if (!rswitch)
goto cleanup;
rswitch->switchid = next_switchid;
rswitch->hopcount = hopcount;
rswitch->destid = destid;
+ rswitch->port_ok = 0;
rswitch->route_table = kzalloc(sizeof(u8)*
RIO_MAX_ROUTE_ENTRIES(port->sys_size),
GFP_KERNEL);
@@ -367,13 +460,22 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
rdev->rswitch = rswitch;
dev_set_name(&rdev->dev, "%02x:s:%04x", rdev->net->id,
rdev->rswitch->switchid);
- rio_route_set_ops(rdev);
+ rio_switch_init(rdev, do_enum);
+
+ if (do_enum && rdev->rswitch->clr_table)
+ rdev->rswitch->clr_table(port, destid, hopcount,
+ RIO_GLOBAL_TABLE);
list_add_tail(&rswitch->node, &rio_switches);
- } else
+ } else {
+ if (do_enum)
+ /*Enable Input Output Port (transmitter reviever)*/
+ rio_enable_rx_tx_port(port, 0, destid, hopcount, 0);
+
dev_set_name(&rdev->dev, "%02x:e:%04x", rdev->net->id,
rdev->destid);
+ }
rdev->dev.bus = &rio_bus_type;
@@ -414,23 +516,29 @@ cleanup:
*
* Reads the port error status CSR for a particular switch port to
* determine if the port has an active link. Returns
- * %PORT_N_ERR_STS_PORT_OK if the port is active or %0 if it is
+ * %RIO_PORT_N_ERR_STS_PORT_OK if the port is active or %0 if it is
* inactive.
*/
static int
rio_sport_is_active(struct rio_mport *port, u16 destid, u8 hopcount, int sport)
{
- u32 result;
+ u32 result = 0;
u32 ext_ftr_ptr;
- int *entry = rio_sport_phys_table;
-
- do {
- if ((ext_ftr_ptr =
- rio_mport_get_feature(port, 0, destid, hopcount, *entry)))
+ ext_ftr_ptr = rio_mport_get_efb(port, 0, destid, hopcount, 0);
+ while (ext_ftr_ptr) {
+ rio_mport_read_config_32(port, destid, hopcount,
+ ext_ftr_ptr, &result);
+ result = RIO_GET_BLOCK_ID(result);
+ if ((result == RIO_EFB_SER_EP_FREE_ID) ||
+ (result == RIO_EFB_SER_EP_FREE_ID_V13P) ||
+ (result == RIO_EFB_SER_EP_FREC_ID))
break;
- } while (*++entry >= 0);
+
+ ext_ftr_ptr = rio_mport_get_efb(port, 0, destid, hopcount,
+ ext_ftr_ptr);
+ }
if (ext_ftr_ptr)
rio_mport_read_config_32(port, destid, hopcount,
@@ -438,7 +546,81 @@ rio_sport_is_active(struct rio_mport *port, u16 destid, u8 hopcount, int sport)
RIO_PORT_N_ERR_STS_CSR(sport),
&result);
- return (result & PORT_N_ERR_STS_PORT_OK);
+ return result & RIO_PORT_N_ERR_STS_PORT_OK;
+}
+
+/**
+ * rio_lock_device - Acquires host device lock for specified device
+ * @port: Master port to send transaction
+ * @destid: Destination ID for device/switch
+ * @hopcount: Hopcount to reach switch
+ * @wait_ms: Max wait time in msec (0 = no timeout)
+ *
+ * Attepts to acquire host device lock for specified device
+ * Returns 0 if device lock acquired or EINVAL if timeout expires.
+ */
+static int
+rio_lock_device(struct rio_mport *port, u16 destid, u8 hopcount, int wait_ms)
+{
+ u32 result;
+ int tcnt = 0;
+
+ /* Attempt to acquire device lock */
+ rio_mport_write_config_32(port, destid, hopcount,
+ RIO_HOST_DID_LOCK_CSR, port->host_deviceid);
+ rio_mport_read_config_32(port, destid, hopcount,
+ RIO_HOST_DID_LOCK_CSR, &result);
+
+ while (result != port->host_deviceid) {
+ if (wait_ms != 0 && tcnt == wait_ms) {
+ pr_debug("RIO: timeout when locking device %x:%x\n",
+ destid, hopcount);
+ return -EINVAL;
+ }
+
+ /* Delay a bit */
+ mdelay(1);
+ tcnt++;
+ /* Try to acquire device lock again */
+ rio_mport_write_config_32(port, destid,
+ hopcount,
+ RIO_HOST_DID_LOCK_CSR,
+ port->host_deviceid);
+ rio_mport_read_config_32(port, destid,
+ hopcount,
+ RIO_HOST_DID_LOCK_CSR, &result);
+ }
+
+ return 0;
+}
+
+/**
+ * rio_unlock_device - Releases host device lock for specified device
+ * @port: Master port to send transaction
+ * @destid: Destination ID for device/switch
+ * @hopcount: Hopcount to reach switch
+ *
+ * Returns 0 if device lock released or EINVAL if fails.
+ */
+static int
+rio_unlock_device(struct rio_mport *port, u16 destid, u8 hopcount)
+{
+ u32 result;
+
+ /* Release device lock */
+ rio_mport_write_config_32(port, destid,
+ hopcount,
+ RIO_HOST_DID_LOCK_CSR,
+ port->host_deviceid);
+ rio_mport_read_config_32(port, destid, hopcount,
+ RIO_HOST_DID_LOCK_CSR, &result);
+ if ((result & 0xffff) != 0xffff) {
+ pr_debug("RIO: badness when releasing device lock %x:%x\n",
+ destid, hopcount);
+ return -EINVAL;
+ }
+
+ return 0;
}
/**
@@ -448,6 +630,7 @@ rio_sport_is_active(struct rio_mport *port, u16 destid, u8 hopcount, int sport)
* @table: Routing table ID
* @route_destid: Destination ID to be routed
* @route_port: Port number to be routed
+ * @lock: lock switch device flag
*
* Calls the switch specific add_entry() method to add a route entry
* on a switch. The route table can be specified using the @table
@@ -456,12 +639,26 @@ rio_sport_is_active(struct rio_mport *port, u16 destid, u8 hopcount, int sport)
* %RIO_GLOBAL_TABLE in @table. Returns %0 on success or %-EINVAL
* on failure.
*/
-static int rio_route_add_entry(struct rio_mport *mport, struct rio_switch *rswitch,
- u16 table, u16 route_destid, u8 route_port)
+static int
+rio_route_add_entry(struct rio_mport *mport, struct rio_switch *rswitch,
+ u16 table, u16 route_destid, u8 route_port, int lock)
{
- return rswitch->add_entry(mport, rswitch->destid,
+ int rc;
+
+ if (lock) {
+ rc = rio_lock_device(mport, rswitch->destid,
+ rswitch->hopcount, 1000);
+ if (rc)
+ return rc;
+ }
+
+ rc = rswitch->add_entry(mport, rswitch->destid,
rswitch->hopcount, table,
route_destid, route_port);
+ if (lock)
+ rio_unlock_device(mport, rswitch->destid, rswitch->hopcount);
+
+ return rc;
}
/**
@@ -471,6 +668,7 @@ static int rio_route_add_entry(struct rio_mport *mport, struct rio_switch *rswit
* @table: Routing table ID
* @route_destid: Destination ID to be routed
* @route_port: Pointer to read port number into
+ * @lock: lock switch device flag
*
* Calls the switch specific get_entry() method to read a route entry
* in a switch. The route table can be specified using the @table
@@ -481,11 +679,24 @@ static int rio_route_add_entry(struct rio_mport *mport, struct rio_switch *rswit
*/
static int
rio_route_get_entry(struct rio_mport *mport, struct rio_switch *rswitch, u16 table,
- u16 route_destid, u8 * route_port)
+ u16 route_destid, u8 *route_port, int lock)
{
- return rswitch->get_entry(mport, rswitch->destid,
+ int rc;
+
+ if (lock) {
+ rc = rio_lock_device(mport, rswitch->destid,
+ rswitch->hopcount, 1000);
+ if (rc)
+ return rc;
+ }
+
+ rc = rswitch->get_entry(mport, rswitch->destid,
rswitch->hopcount, table,
route_destid, route_port);
+ if (lock)
+ rio_unlock_device(mport, rswitch->destid, rswitch->hopcount);
+
+ return rc;
}
/**
@@ -625,14 +836,14 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
sw_inport = rio_get_swpinfo_inport(port,
RIO_ANY_DESTID(port->sys_size), hopcount);
rio_route_add_entry(port, rdev->rswitch, RIO_GLOBAL_TABLE,
- port->host_deviceid, sw_inport);
+ port->host_deviceid, sw_inport, 0);
rdev->rswitch->route_table[port->host_deviceid] = sw_inport;
for (destid = 0; destid < next_destid; destid++) {
if (destid == port->host_deviceid)
continue;
rio_route_add_entry(port, rdev->rswitch, RIO_GLOBAL_TABLE,
- destid, sw_inport);
+ destid, sw_inport, 0);
rdev->rswitch->route_table[destid] = sw_inport;
}
@@ -644,8 +855,15 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
rio_name(rdev), rdev->vid, rdev->did, num_ports);
sw_destid = next_destid;
for (port_num = 0; port_num < num_ports; port_num++) {
- if (sw_inport == port_num)
+ /*Enable Input Output Port (transmitter reviever)*/
+ rio_enable_rx_tx_port(port, 0,
+ RIO_ANY_DESTID(port->sys_size),
+ hopcount, port_num);
+
+ if (sw_inport == port_num) {
+ rdev->rswitch->port_ok |= (1 << port_num);
continue;
+ }
cur_destid = next_destid;
@@ -655,10 +873,11 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
pr_debug(
"RIO: scanning device on port %d\n",
port_num);
+ rdev->rswitch->port_ok |= (1 << port_num);
rio_route_add_entry(port, rdev->rswitch,
RIO_GLOBAL_TABLE,
RIO_ANY_DESTID(port->sys_size),
- port_num);
+ port_num, 0);
if (rio_enum_peer(net, port, hopcount + 1) < 0)
return -1;
@@ -672,15 +891,35 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
rio_route_add_entry(port, rdev->rswitch,
RIO_GLOBAL_TABLE,
destid,
- port_num);
+ port_num,
+ 0);
rdev->rswitch->
route_table[destid] =
port_num;
}
}
+ } else {
+ /* If switch supports Error Management,
+ * set PORT_LOCKOUT bit for unused port
+ */
+ if (rdev->em_efptr)
+ rio_set_port_lockout(rdev, port_num, 1);
+
+ rdev->rswitch->port_ok &= ~(1 << port_num);
}
}
+ /* Direct Port-write messages to the enumeratiing host */
+ if ((rdev->src_ops & RIO_SRC_OPS_PORT_WRITE) &&
+ (rdev->em_efptr)) {
+ rio_write_config_32(rdev,
+ rdev->em_efptr + RIO_EM_PW_TGT_DEVID,
+ (port->host_deviceid << 16) |
+ (port->sys_size << 15));
+ }
+
+ rio_init_em(rdev);
+
/* Check for empty switch */
if (next_destid == sw_destid) {
next_destid++;
@@ -700,21 +939,16 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
* rio_enum_complete- Tests if enumeration of a network is complete
* @port: Master port to send transaction
*
- * Tests the Component Tag CSR for presence of the magic enumeration
- * complete flag. Return %1 if enumeration is complete or %0 if
+ * Tests the Component Tag CSR for non-zero value (enumeration
+ * complete flag). Return %1 if enumeration is complete or %0 if
* enumeration is incomplete.
*/
static int rio_enum_complete(struct rio_mport *port)
{
u32 tag_csr;
- int ret = 0;
rio_local_read_config_32(port, RIO_COMPONENT_TAG_CSR, &tag_csr);
-
- if (tag_csr == RIO_ENUM_CMPL_MAGIC)
- ret = 1;
-
- return ret;
+ return (tag_csr & 0xffff) ? 1 : 0;
}
/**
@@ -763,17 +997,21 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid,
pr_debug(
"RIO: scanning device on port %d\n",
port_num);
+
+ rio_lock_device(port, destid, hopcount, 1000);
+
for (ndestid = 0;
ndestid < RIO_ANY_DESTID(port->sys_size);
ndestid++) {
rio_route_get_entry(port, rdev->rswitch,
RIO_GLOBAL_TABLE,
ndestid,
- &route_port);
+ &route_port, 0);
if (route_port == port_num)
break;
}
+ rio_unlock_device(port, destid, hopcount);
if (rio_disc_peer
(net, port, ndestid, hopcount + 1) < 0)
return -1;
@@ -792,7 +1030,7 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid,
*
* Reads the port error status CSR for the master port to
* determine if the port has an active link. Returns
- * %PORT_N_ERR_STS_PORT_OK if the master port is active
+ * %RIO_PORT_N_ERR_STS_PORT_OK if the master port is active
* or %0 if it is inactive.
*/
static int rio_mport_is_active(struct rio_mport *port)
@@ -813,7 +1051,7 @@ static int rio_mport_is_active(struct rio_mport *port)
RIO_PORT_N_ERR_STS_CSR(port->index),
&result);
- return (result & PORT_N_ERR_STS_PORT_OK);
+ return result & RIO_PORT_N_ERR_STS_PORT_OK;
}
/**
@@ -866,12 +1104,17 @@ static void rio_update_route_tables(struct rio_mport *port)
continue;
if (RIO_INVALID_ROUTE == rswitch->route_table[destid]) {
+ /* Skip if destid ends in empty switch*/
+ if (rswitch->destid == destid)
+ continue;
sport = rio_get_swpinfo_inport(port,
rswitch->destid, rswitch->hopcount);
if (rswitch->add_entry) {
- rio_route_add_entry(port, rswitch, RIO_GLOBAL_TABLE, destid, sport);
+ rio_route_add_entry(port, rswitch,
+ RIO_GLOBAL_TABLE, destid,
+ sport, 0);
rswitch->route_table[destid] = sport;
}
}
@@ -880,6 +1123,32 @@ static void rio_update_route_tables(struct rio_mport *port)
}
/**
+ * rio_init_em - Initializes RIO Error Management (for switches)
+ * @rdev: RIO device
+ *
+ * For each enumerated switch, call device-specific error management
+ * initialization routine (if supplied by the switch driver).
+ */
+static void rio_init_em(struct rio_dev *rdev)
+{
+ if (rio_is_switch(rdev) && (rdev->em_efptr) &&
+ (rdev->rswitch->em_init)) {
+ rdev->rswitch->em_init(rdev);
+ }
+}
+
+/**
+ * rio_pw_enable - Enables/disables port-write handling by a master port
+ * @port: Master port associated with port-write handling
+ * @enable: 1=enable, 0=disable
+ */
+static void rio_pw_enable(struct rio_mport *port, int enable)
+{
+ if (port->ops->pwenable)
+ port->ops->pwenable(port, enable);
+}
+
+/**
* rio_enum_mport- Start enumeration through a master port
* @mport: Master port to send transactions
*
@@ -911,6 +1180,10 @@ int __devinit rio_enum_mport(struct rio_mport *mport)
rc = -ENOMEM;
goto out;
}
+
+ /* Enable Input Output Port (transmitter reviever) */
+ rio_enable_rx_tx_port(mport, 1, 0, 0, 0);
+
if (rio_enum_peer(net, mport, 0) < 0) {
/* A higher priority host won enumeration, bail. */
printk(KERN_INFO
@@ -922,6 +1195,7 @@ int __devinit rio_enum_mport(struct rio_mport *mport)
}
rio_update_route_tables(mport);
rio_clear_locks(mport);
+ rio_pw_enable(mport, 1);
} else {
printk(KERN_INFO "RIO: master port %d link inactive\n",
mport->id);
@@ -945,15 +1219,22 @@ static void rio_build_route_tables(void)
u8 sport;
list_for_each_entry(rdev, &rio_devices, global_list)
- if (rio_is_switch(rdev))
- for (i = 0;
- i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
- i++) {
- if (rio_route_get_entry
- (rdev->net->hport, rdev->rswitch, RIO_GLOBAL_TABLE,
- i, &sport) < 0)
- continue;
- rdev->rswitch->route_table[i] = sport;
+ if (rio_is_switch(rdev)) {
+ rio_lock_device(rdev->net->hport, rdev->rswitch->destid,
+ rdev->rswitch->hopcount, 1000);
+ for (i = 0;
+ i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
+ i++) {
+ if (rio_route_get_entry
+ (rdev->net->hport, rdev->rswitch,
+ RIO_GLOBAL_TABLE, i, &sport, 0) < 0)
+ continue;
+ rdev->rswitch->route_table[i] = sport;
+ }
+
+ rio_unlock_device(rdev->net->hport,
+ rdev->rswitch->destid,
+ rdev->rswitch->hopcount);
}
}
@@ -1012,6 +1293,13 @@ int __devinit rio_disc_mport(struct rio_mport *mport)
del_timer_sync(&rio_enum_timer);
pr_debug("done\n");
+
+ /* Read DestID assigned by enumerator */
+ rio_local_read_config_32(mport, RIO_DID_CSR,
+ &mport->host_deviceid);
+ mport->host_deviceid = RIO_GET_DID(mport->sys_size,
+ mport->host_deviceid);
+
if (rio_disc_peer(net, mport, RIO_ANY_DESTID(mport->sys_size),
0) < 0) {
printk(KERN_INFO
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index 6395c780008b..08fa453af974 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -5,6 +5,10 @@
* Copyright 2005 MontaVista Software, Inc.
* Matt Porter <mporter@kernel.crashing.org>
*
+ * Copyright 2009 Integrated Device Technology, Inc.
+ * Alex Bounine <alexandre.bounine@idt.com>
+ * - Added Port-Write/Error Management initialization and handling
+ *
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
@@ -333,6 +337,331 @@ int rio_release_outb_dbell(struct rio_dev *rdev, struct resource *res)
}
/**
+ * rio_request_inb_pwrite - request inbound port-write message service
+ * @rdev: RIO device to which register inbound port-write callback routine
+ * @pwcback: Callback routine to execute when port-write is received
+ *
+ * Binds a port-write callback function to the RapidIO device.
+ * Returns 0 if the request has been satisfied.
+ */
+int rio_request_inb_pwrite(struct rio_dev *rdev,
+ int (*pwcback)(struct rio_dev *rdev, union rio_pw_msg *msg, int step))
+{
+ int rc = 0;
+
+ spin_lock(&rio_global_list_lock);
+ if (rdev->pwcback != NULL)
+ rc = -ENOMEM;
+ else
+ rdev->pwcback = pwcback;
+
+ spin_unlock(&rio_global_list_lock);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(rio_request_inb_pwrite);
+
+/**
+ * rio_release_inb_pwrite - release inbound port-write message service
+ * @rdev: RIO device which registered for inbound port-write callback
+ *
+ * Removes callback from the rio_dev structure. Returns 0 if the request
+ * has been satisfied.
+ */
+int rio_release_inb_pwrite(struct rio_dev *rdev)
+{
+ int rc = -ENOMEM;
+
+ spin_lock(&rio_global_list_lock);
+ if (rdev->pwcback) {
+ rdev->pwcback = NULL;
+ rc = 0;
+ }
+
+ spin_unlock(&rio_global_list_lock);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(rio_release_inb_pwrite);
+
+/**
+ * rio_mport_get_physefb - Helper function that returns register offset
+ * for Physical Layer Extended Features Block.
+ * @port: Master port to issue transaction
+ * @local: Indicate a local master port or remote device access
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ */
+u32
+rio_mport_get_physefb(struct rio_mport *port, int local,
+ u16 destid, u8 hopcount)
+{
+ u32 ext_ftr_ptr;
+ u32 ftr_header;
+
+ ext_ftr_ptr = rio_mport_get_efb(port, local, destid, hopcount, 0);
+
+ while (ext_ftr_ptr) {
+ if (local)
+ rio_local_read_config_32(port, ext_ftr_ptr,
+ &ftr_header);
+ else
+ rio_mport_read_config_32(port, destid, hopcount,
+ ext_ftr_ptr, &ftr_header);
+
+ ftr_header = RIO_GET_BLOCK_ID(ftr_header);
+ switch (ftr_header) {
+
+ case RIO_EFB_SER_EP_ID_V13P:
+ case RIO_EFB_SER_EP_REC_ID_V13P:
+ case RIO_EFB_SER_EP_FREE_ID_V13P:
+ case RIO_EFB_SER_EP_ID:
+ case RIO_EFB_SER_EP_REC_ID:
+ case RIO_EFB_SER_EP_FREE_ID:
+ case RIO_EFB_SER_EP_FREC_ID:
+
+ return ext_ftr_ptr;
+
+ default:
+ break;
+ }
+
+ ext_ftr_ptr = rio_mport_get_efb(port, local, destid,
+ hopcount, ext_ftr_ptr);
+ }
+
+ return ext_ftr_ptr;
+}
+
+/**
+ * rio_get_comptag - Begin or continue searching for a RIO device by component tag
+ * @comp_tag: RIO component tag to match
+ * @from: Previous RIO device found in search, or %NULL for new search
+ *
+ * Iterates through the list of known RIO devices. If a RIO device is
+ * found with a matching @comp_tag, a pointer to its device
+ * structure is returned. Otherwise, %NULL is returned. A new search
+ * is initiated by passing %NULL to the @from argument. Otherwise, if
+ * @from is not %NULL, searches continue from next device on the global
+ * list.
+ */
+static struct rio_dev *rio_get_comptag(u32 comp_tag, struct rio_dev *from)
+{
+ struct list_head *n;
+ struct rio_dev *rdev;
+
+ spin_lock(&rio_global_list_lock);
+ n = from ? from->global_list.next : rio_devices.next;
+
+ while (n && (n != &rio_devices)) {
+ rdev = rio_dev_g(n);
+ if (rdev->comp_tag == comp_tag)
+ goto exit;
+ n = n->next;
+ }
+ rdev = NULL;
+exit:
+ spin_unlock(&rio_global_list_lock);
+ return rdev;
+}
+
+/**
+ * rio_set_port_lockout - Sets/clears LOCKOUT bit (RIO EM 1.3) for a switch port.
+ * @rdev: Pointer to RIO device control structure
+ * @pnum: Switch port number to set LOCKOUT bit
+ * @lock: Operation : set (=1) or clear (=0)
+ */
+int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock)
+{
+ u8 hopcount = 0xff;
+ u16 destid = rdev->destid;
+ u32 regval;
+
+ if (rdev->rswitch) {
+ destid = rdev->rswitch->destid;
+ hopcount = rdev->rswitch->hopcount;
+ }
+
+ rio_mport_read_config_32(rdev->net->hport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_CTL_CSR(pnum),
+ &regval);
+ if (lock)
+ regval |= RIO_PORT_N_CTL_LOCKOUT;
+ else
+ regval &= ~RIO_PORT_N_CTL_LOCKOUT;
+
+ rio_mport_write_config_32(rdev->net->hport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_CTL_CSR(pnum),
+ regval);
+ return 0;
+}
+
+/**
+ * rio_inb_pwrite_handler - process inbound port-write message
+ * @pw_msg: pointer to inbound port-write message
+ *
+ * Processes an inbound port-write message. Returns 0 if the request
+ * has been satisfied.
+ */
+int rio_inb_pwrite_handler(union rio_pw_msg *pw_msg)
+{
+ struct rio_dev *rdev;
+ struct rio_mport *mport;
+ u8 hopcount;
+ u16 destid;
+ u32 err_status;
+ int rc, portnum;
+
+ rdev = rio_get_comptag(pw_msg->em.comptag, NULL);
+ if (rdev == NULL) {
+ /* Someting bad here (probably enumeration error) */
+ pr_err("RIO: %s No matching device for CTag 0x%08x\n",
+ __func__, pw_msg->em.comptag);
+ return -EIO;
+ }
+
+ pr_debug("RIO: Port-Write message from %s\n", rio_name(rdev));
+
+#ifdef DEBUG_PW
+ {
+ u32 i;
+ for (i = 0; i < RIO_PW_MSG_SIZE/sizeof(u32);) {
+ pr_debug("0x%02x: %08x %08x %08x %08x",
+ i*4, pw_msg->raw[i], pw_msg->raw[i + 1],
+ pw_msg->raw[i + 2], pw_msg->raw[i + 3]);
+ i += 4;
+ }
+ pr_debug("\n");
+ }
+#endif
+
+ /* Call an external service function (if such is registered
+ * for this device). This may be the service for endpoints that send
+ * device-specific port-write messages. End-point messages expected
+ * to be handled completely by EP specific device driver.
+ * For switches rc==0 signals that no standard processing required.
+ */
+ if (rdev->pwcback != NULL) {
+ rc = rdev->pwcback(rdev, pw_msg, 0);
+ if (rc == 0)
+ return 0;
+ }
+
+ /* For End-point devices processing stops here */
+ if (!(rdev->pef & RIO_PEF_SWITCH))
+ return 0;
+
+ if (rdev->phys_efptr == 0) {
+ pr_err("RIO_PW: Bad switch initialization for %s\n",
+ rio_name(rdev));
+ return 0;
+ }
+
+ mport = rdev->net->hport;
+ destid = rdev->rswitch->destid;
+ hopcount = rdev->rswitch->hopcount;
+
+ /*
+ * Process the port-write notification from switch
+ */
+
+ portnum = pw_msg->em.is_port & 0xFF;
+
+ if (rdev->rswitch->em_handle)
+ rdev->rswitch->em_handle(rdev, portnum);
+
+ rio_mport_read_config_32(mport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
+ &err_status);
+ pr_debug("RIO_PW: SP%d_ERR_STS_CSR=0x%08x\n", portnum, err_status);
+
+ if (pw_msg->em.errdetect) {
+ pr_debug("RIO_PW: RIO_EM_P%d_ERR_DETECT=0x%08x\n",
+ portnum, pw_msg->em.errdetect);
+ /* Clear EM Port N Error Detect CSR */
+ rio_mport_write_config_32(mport, destid, hopcount,
+ rdev->em_efptr + RIO_EM_PN_ERR_DETECT(portnum), 0);
+ }
+
+ if (pw_msg->em.ltlerrdet) {
+ pr_debug("RIO_PW: RIO_EM_LTL_ERR_DETECT=0x%08x\n",
+ pw_msg->em.ltlerrdet);
+ /* Clear EM L/T Layer Error Detect CSR */
+ rio_mport_write_config_32(mport, destid, hopcount,
+ rdev->em_efptr + RIO_EM_LTL_ERR_DETECT, 0);
+ }
+
+ /* Clear Port Errors */
+ rio_mport_write_config_32(mport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
+ err_status & RIO_PORT_N_ERR_STS_CLR_MASK);
+
+ if (rdev->rswitch->port_ok & (1 << portnum)) {
+ if (err_status & RIO_PORT_N_ERR_STS_PORT_UNINIT) {
+ rdev->rswitch->port_ok &= ~(1 << portnum);
+ rio_set_port_lockout(rdev, portnum, 1);
+
+ rio_mport_write_config_32(mport, destid, hopcount,
+ rdev->phys_efptr +
+ RIO_PORT_N_ACK_STS_CSR(portnum),
+ RIO_PORT_N_ACK_CLEAR);
+
+ /* Schedule Extraction Service */
+ pr_debug("RIO_PW: Device Extraction on [%s]-P%d\n",
+ rio_name(rdev), portnum);
+ }
+ } else {
+ if (err_status & RIO_PORT_N_ERR_STS_PORT_OK) {
+ rdev->rswitch->port_ok |= (1 << portnum);
+ rio_set_port_lockout(rdev, portnum, 0);
+
+ /* Schedule Insertion Service */
+ pr_debug("RIO_PW: Device Insertion on [%s]-P%d\n",
+ rio_name(rdev), portnum);
+ }
+ }
+
+ /* Clear Port-Write Pending bit */
+ rio_mport_write_config_32(mport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
+ RIO_PORT_N_ERR_STS_PW_PEND);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rio_inb_pwrite_handler);
+
+/**
+ * rio_mport_get_efb - get pointer to next extended features block
+ * @port: Master port to issue transaction
+ * @local: Indicate a local master port or remote device access
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @from: Offset of current Extended Feature block header (if 0 starts
+ * from ExtFeaturePtr)
+ */
+u32
+rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
+ u8 hopcount, u32 from)
+{
+ u32 reg_val;
+
+ if (from == 0) {
+ if (local)
+ rio_local_read_config_32(port, RIO_ASM_INFO_CAR,
+ &reg_val);
+ else
+ rio_mport_read_config_32(port, destid, hopcount,
+ RIO_ASM_INFO_CAR, &reg_val);
+ return reg_val & RIO_EXT_FTR_PTR_MASK;
+ } else {
+ if (local)
+ rio_local_read_config_32(port, from, &reg_val);
+ else
+ rio_mport_read_config_32(port, destid, hopcount,
+ from, &reg_val);
+ return RIO_GET_BLOCK_ID(reg_val);
+ }
+}
+
+/**
* rio_mport_get_feature - query for devices' extended features
* @port: Master port to issue transaction
* @local: Indicate a local master port or remote device access
@@ -451,6 +780,110 @@ struct rio_dev *rio_get_device(u16 vid, u16 did, struct rio_dev *from)
return rio_get_asm(vid, did, RIO_ANY_ID, RIO_ANY_ID, from);
}
+/**
+ * rio_std_route_add_entry - Add switch route table entry using standard
+ * registers defined in RIO specification rev.1.3
+ * @mport: Master port to issue transaction
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @table: routing table ID (global or port-specific)
+ * @route_destid: destID entry in the RT
+ * @route_port: destination port for specified destID
+ */
+int rio_std_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 route_port)
+{
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_DESTID_SEL_CSR,
+ (u32)route_destid);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR,
+ (u32)route_port);
+ }
+
+ udelay(10);
+ return 0;
+}
+
+/**
+ * rio_std_route_get_entry - Read switch route table entry (port number)
+ * assosiated with specified destID using standard registers defined in RIO
+ * specification rev.1.3
+ * @mport: Master port to issue transaction
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @table: routing table ID (global or port-specific)
+ * @route_destid: destID entry in the RT
+ * @route_port: returned destination port for specified destID
+ */
+int rio_std_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 *route_port)
+{
+ u32 result;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid);
+ rio_mport_read_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
+
+ *route_port = (u8)result;
+ }
+
+ return 0;
+}
+
+/**
+ * rio_std_route_clr_table - Clear swotch route table using standard registers
+ * defined in RIO specification rev.1.3.
+ * @mport: Master port to issue transaction
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @table: routing table ID (global or port-specific)
+ */
+int rio_std_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table)
+{
+ u32 max_destid = 0xff;
+ u32 i, pef, id_inc = 1, ext_cfg = 0;
+ u32 port_sel = RIO_INVALID_ROUTE;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_read_config_32(mport, destid, hopcount,
+ RIO_PEF_CAR, &pef);
+
+ if (mport->sys_size) {
+ rio_mport_read_config_32(mport, destid, hopcount,
+ RIO_SWITCH_RT_LIMIT,
+ &max_destid);
+ max_destid &= RIO_RT_MAX_DESTID;
+ }
+
+ if (pef & RIO_PEF_EXT_RT) {
+ ext_cfg = 0x80000000;
+ id_inc = 4;
+ port_sel = (RIO_INVALID_ROUTE << 24) |
+ (RIO_INVALID_ROUTE << 16) |
+ (RIO_INVALID_ROUTE << 8) |
+ RIO_INVALID_ROUTE;
+ }
+
+ for (i = 0; i <= max_destid;) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_DESTID_SEL_CSR,
+ ext_cfg | i);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR,
+ port_sel);
+ i += id_inc;
+ }
+ }
+
+ udelay(10);
+ return 0;
+}
+
static void rio_fixup_device(struct rio_dev *dev)
{
}
diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h
index 7786d02581f2..f27b7a9c47d2 100644
--- a/drivers/rapidio/rio.h
+++ b/drivers/rapidio/rio.h
@@ -18,38 +18,50 @@
extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid,
u8 hopcount, int ftr);
+extern u32 rio_mport_get_physefb(struct rio_mport *port, int local,
+ u16 destid, u8 hopcount);
+extern u32 rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
+ u8 hopcount, u32 from);
extern int rio_create_sysfs_dev_files(struct rio_dev *rdev);
extern int rio_enum_mport(struct rio_mport *mport);
extern int rio_disc_mport(struct rio_mport *mport);
+extern int rio_std_route_add_entry(struct rio_mport *mport, u16 destid,
+ u8 hopcount, u16 table, u16 route_destid,
+ u8 route_port);
+extern int rio_std_route_get_entry(struct rio_mport *mport, u16 destid,
+ u8 hopcount, u16 table, u16 route_destid,
+ u8 *route_port);
+extern int rio_std_route_clr_table(struct rio_mport *mport, u16 destid,
+ u8 hopcount, u16 table);
+extern int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock);
/* Structures internal to the RIO core code */
extern struct device_attribute rio_dev_attrs[];
extern spinlock_t rio_global_list_lock;
-extern struct rio_route_ops __start_rio_route_ops[];
-extern struct rio_route_ops __end_rio_route_ops[];
+extern struct rio_switch_ops __start_rio_switch_ops[];
+extern struct rio_switch_ops __end_rio_switch_ops[];
/* Helpers internal to the RIO core code */
-#define DECLARE_RIO_ROUTE_SECTION(section, vid, did, add_hook, get_hook) \
- static struct rio_route_ops __rio_route_ops __used \
- __section(section)= { vid, did, add_hook, get_hook };
+#define DECLARE_RIO_SWITCH_SECTION(section, name, vid, did, init_hook) \
+ static const struct rio_switch_ops __rio_switch_##name __used \
+ __section(section) = { vid, did, init_hook };
/**
- * DECLARE_RIO_ROUTE_OPS - Registers switch routing operations
+ * DECLARE_RIO_SWITCH_INIT - Registers switch initialization routine
* @vid: RIO vendor ID
* @did: RIO device ID
- * @add_hook: Callback that adds a route entry
- * @get_hook: Callback that gets a route entry
+ * @init_hook: Callback that performs switch-specific initialization
*
- * Manipulating switch route tables in RIO is switch specific. This
- * registers a switch by vendor and device ID with two callbacks for
- * modifying and retrieving route entries in a switch. A &struct
- * rio_route_ops is initialized with the ops and placed into a
- * RIO-specific kernel section.
+ * Manipulating switch route tables and error management in RIO
+ * is switch specific. This registers a switch by vendor and device ID with
+ * initialization callback for setting up switch operations and (if required)
+ * hardware initialization. A &struct rio_switch_ops is initialized with
+ * pointer to the init routine and placed into a RIO-specific kernel section.
*/
-#define DECLARE_RIO_ROUTE_OPS(vid, did, add_hook, get_hook) \
- DECLARE_RIO_ROUTE_SECTION(.rio_route_ops, \
- vid, did, add_hook, get_hook)
+#define DECLARE_RIO_SWITCH_INIT(vid, did, init_hook) \
+ DECLARE_RIO_SWITCH_SECTION(.rio_switch_ops, vid##did, \
+ vid, did, init_hook)
#define RIO_GET_DID(size, x) (size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16))
#define RIO_SET_DID(size, x) (size ? (x & 0xffff) : ((x & 0x000000ff) << 16))
diff --git a/drivers/rapidio/switches/Kconfig b/drivers/rapidio/switches/Kconfig
new file mode 100644
index 000000000000..2b4e9b2b6631
--- /dev/null
+++ b/drivers/rapidio/switches/Kconfig
@@ -0,0 +1,28 @@
+#
+# RapidIO switches configuration
+#
+config RAPIDIO_TSI57X
+ bool "IDT Tsi57x SRIO switches support"
+ depends on RAPIDIO
+ ---help---
+ Includes support for IDT Tsi57x family of serial RapidIO switches.
+
+config RAPIDIO_CPS_XX
+ bool "IDT CPS-xx SRIO switches support"
+ depends on RAPIDIO
+ ---help---
+ Includes support for IDT CPS-16/12/10/8 serial RapidIO switches.
+
+config RAPIDIO_TSI568
+ bool "Tsi568 SRIO switch support"
+ depends on RAPIDIO
+ default n
+ ---help---
+ Includes support for IDT Tsi568 serial RapidIO switch.
+
+config RAPIDIO_TSI500
+ bool "Tsi500 Parallel RapidIO switch support"
+ depends on RAPIDIO
+ default n
+ ---help---
+ Includes support for IDT Tsi500 parallel RapidIO switch.
diff --git a/drivers/rapidio/switches/Makefile b/drivers/rapidio/switches/Makefile
index b924f8301761..fe4adc3e8d5f 100644
--- a/drivers/rapidio/switches/Makefile
+++ b/drivers/rapidio/switches/Makefile
@@ -2,4 +2,11 @@
# Makefile for RIO switches
#
-obj-$(CONFIG_RAPIDIO) += tsi500.o
+obj-$(CONFIG_RAPIDIO_TSI57X) += tsi57x.o
+obj-$(CONFIG_RAPIDIO_CPS_XX) += idtcps.o
+obj-$(CONFIG_RAPIDIO_TSI568) += tsi568.o
+obj-$(CONFIG_RAPIDIO_TSI500) += tsi500.o
+
+ifeq ($(CONFIG_RAPIDIO_DEBUG),y)
+EXTRA_CFLAGS += -DDEBUG
+endif
diff --git a/drivers/rapidio/switches/idtcps.c b/drivers/rapidio/switches/idtcps.c
new file mode 100644
index 000000000000..2c790c144f89
--- /dev/null
+++ b/drivers/rapidio/switches/idtcps.c
@@ -0,0 +1,137 @@
+/*
+ * IDT CPS RapidIO switches support
+ *
+ * Copyright 2009-2010 Integrated Device Technology, Inc.
+ * Alexandre Bounine <alexandre.bounine@idt.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/rio_ids.h>
+#include "../rio.h"
+
+#define CPS_DEFAULT_ROUTE 0xde
+#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)
+{
+ u32 result;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid);
+
+ rio_mport_read_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
+
+ result = (0xffffff00 & result) | (u32)route_port;
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR, result);
+ }
+
+ return 0;
+}
+
+static int
+idtcps_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 *route_port)
+{
+ u32 result;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid);
+
+ rio_mport_read_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
+
+ if (CPS_DEFAULT_ROUTE == (u8)result ||
+ CPS_NO_ROUTE == (u8)result)
+ *route_port = RIO_INVALID_ROUTE;
+ else
+ *route_port = (u8)result;
+ }
+
+ return 0;
+}
+
+static int
+idtcps_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table)
+{
+ u32 i;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ for (i = 0x80000000; i <= 0x800000ff;) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_DESTID_SEL_CSR, i);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ RIO_STD_RTE_CONF_PORT_SEL_CSR,
+ (CPS_DEFAULT_ROUTE << 24) |
+ (CPS_DEFAULT_ROUTE << 16) |
+ (CPS_DEFAULT_ROUTE << 8) | CPS_DEFAULT_ROUTE);
+ i += 4;
+ }
+ }
+
+ 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;
+
+ return 0;
+}
+
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS6Q, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS8, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS10Q, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS12, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS16, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDT70K200, idtcps_switch_init);
diff --git a/drivers/rapidio/switches/tsi500.c b/drivers/rapidio/switches/tsi500.c
index c77c23bd9840..914eddd5aa42 100644
--- a/drivers/rapidio/switches/tsi500.c
+++ b/drivers/rapidio/switches/tsi500.c
@@ -1,6 +1,10 @@
/*
* RapidIO Tsi500 switch support
*
+ * Copyright 2009-2010 Integrated Device Technology, Inc.
+ * Alexandre Bounine <alexandre.bounine@idt.com>
+ * - Modified switch operations initialization.
+ *
* Copyright 2005 MontaVista Software, Inc.
* Matt Porter <mporter@kernel.crashing.org>
*
@@ -57,4 +61,18 @@ tsi500_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount, u16 tab
return ret;
}
-DECLARE_RIO_ROUTE_OPS(RIO_VID_TUNDRA, RIO_DID_TSI500, tsi500_route_add_entry, tsi500_route_get_entry);
+static int tsi500_switch_init(struct rio_dev *rdev, int do_enum)
+{
+ pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
+ 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;
+
+ return 0;
+}
+
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI500, tsi500_switch_init);
diff --git a/drivers/rapidio/switches/tsi568.c b/drivers/rapidio/switches/tsi568.c
new file mode 100644
index 000000000000..f7fd7898606e
--- /dev/null
+++ b/drivers/rapidio/switches/tsi568.c
@@ -0,0 +1,146 @@
+/*
+ * RapidIO Tsi568 switch support
+ *
+ * Copyright 2009-2010 Integrated Device Technology, Inc.
+ * Alexandre Bounine <alexandre.bounine@idt.com>
+ * - Added EM support
+ * - Modified switch operations initialization.
+ *
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/rio_ids.h>
+#include <linux/delay.h>
+#include "../rio.h"
+
+/* Global (broadcast) route registers */
+#define SPBC_ROUTE_CFG_DESTID 0x10070
+#define SPBC_ROUTE_CFG_PORT 0x10074
+
+/* Per port route registers */
+#define SPP_ROUTE_CFG_DESTID(n) (0x11070 + 0x100*n)
+#define SPP_ROUTE_CFG_PORT(n) (0x11074 + 0x100*n)
+
+#define TSI568_SP_MODE_BC 0x10004
+#define TSI568_SP_MODE_PW_DIS 0x08000000
+
+static int
+tsi568_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 route_port)
+{
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPBC_ROUTE_CFG_DESTID, route_destid);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPBC_ROUTE_CFG_PORT, route_port);
+ } else {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_DESTID(table),
+ route_destid);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_PORT(table), route_port);
+ }
+
+ udelay(10);
+
+ return 0;
+}
+
+static int
+tsi568_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 *route_port)
+{
+ int ret = 0;
+ u32 result;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPBC_ROUTE_CFG_DESTID, route_destid);
+ rio_mport_read_config_32(mport, destid, hopcount,
+ SPBC_ROUTE_CFG_PORT, &result);
+ } else {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_DESTID(table),
+ route_destid);
+ rio_mport_read_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_PORT(table), &result);
+ }
+
+ *route_port = result;
+ if (*route_port > 15)
+ ret = -1;
+
+ return ret;
+}
+
+static int
+tsi568_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table)
+{
+ u32 route_idx;
+ u32 lut_size;
+
+ lut_size = (mport->sys_size) ? 0x1ff : 0xff;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPBC_ROUTE_CFG_DESTID, 0x80000000);
+ for (route_idx = 0; route_idx <= lut_size; route_idx++)
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPBC_ROUTE_CFG_PORT,
+ RIO_INVALID_ROUTE);
+ } else {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_DESTID(table),
+ 0x80000000);
+ for (route_idx = 0; route_idx <= lut_size; route_idx++)
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_PORT(table),
+ RIO_INVALID_ROUTE);
+ }
+
+ return 0;
+}
+
+static int
+tsi568_em_init(struct rio_dev *rdev)
+{
+ struct rio_mport *mport = rdev->net->hport;
+ u16 destid = rdev->rswitch->destid;
+ u8 hopcount = rdev->rswitch->hopcount;
+ u32 regval;
+
+ pr_debug("TSI568 %s [%d:%d]\n", __func__, destid, hopcount);
+
+ /* Make sure that Port-Writes are disabled (for all ports) */
+ rio_mport_read_config_32(mport, destid, hopcount,
+ TSI568_SP_MODE_BC, &regval);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ TSI568_SP_MODE_BC, regval | TSI568_SP_MODE_PW_DIS);
+
+ return 0;
+}
+
+static int tsi568_switch_init(struct rio_dev *rdev, int do_enum)
+{
+ pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
+ 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;
+
+ return 0;
+}
+
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI568, tsi568_switch_init);
diff --git a/drivers/rapidio/switches/tsi57x.c b/drivers/rapidio/switches/tsi57x.c
new file mode 100644
index 000000000000..d34df722d95f
--- /dev/null
+++ b/drivers/rapidio/switches/tsi57x.c
@@ -0,0 +1,315 @@
+/*
+ * RapidIO Tsi57x switch family support
+ *
+ * Copyright 2009-2010 Integrated Device Technology, Inc.
+ * Alexandre Bounine <alexandre.bounine@idt.com>
+ * - Added EM support
+ * - Modified switch operations initialization.
+ *
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/rio_ids.h>
+#include <linux/delay.h>
+#include "../rio.h"
+
+/* Global (broadcast) route registers */
+#define SPBC_ROUTE_CFG_DESTID 0x10070
+#define SPBC_ROUTE_CFG_PORT 0x10074
+
+/* Per port route registers */
+#define SPP_ROUTE_CFG_DESTID(n) (0x11070 + 0x100*n)
+#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)
+{
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPBC_ROUTE_CFG_DESTID, route_destid);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPBC_ROUTE_CFG_PORT, route_port);
+ } else {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_DESTID(table), route_destid);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_PORT(table), route_port);
+ }
+
+ udelay(10);
+
+ return 0;
+}
+
+static int
+tsi57x_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table, u16 route_destid, u8 *route_port)
+{
+ int ret = 0;
+ u32 result;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ /* Use local RT of the ingress port to avoid possible
+ race condition */
+ rio_mport_read_config_32(mport, destid, hopcount,
+ RIO_SWP_INFO_CAR, &result);
+ table = (result & RIO_SWP_INFO_PORT_NUM_MASK);
+ }
+
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_DESTID(table), route_destid);
+ rio_mport_read_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_PORT(table), &result);
+
+ *route_port = (u8)result;
+ if (*route_port > 15)
+ ret = -1;
+
+ return ret;
+}
+
+static int
+tsi57x_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+ u16 table)
+{
+ u32 route_idx;
+ u32 lut_size;
+
+ lut_size = (mport->sys_size) ? 0x1ff : 0xff;
+
+ if (table == RIO_GLOBAL_TABLE) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPBC_ROUTE_CFG_DESTID, 0x80000000);
+ for (route_idx = 0; route_idx <= lut_size; route_idx++)
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPBC_ROUTE_CFG_PORT,
+ RIO_INVALID_ROUTE);
+ } else {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_DESTID(table), 0x80000000);
+ for (route_idx = 0; route_idx <= lut_size; route_idx++)
+ rio_mport_write_config_32(mport, destid, hopcount,
+ SPP_ROUTE_CFG_PORT(table) , RIO_INVALID_ROUTE);
+ }
+
+ 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)
+{
+ struct rio_mport *mport = rdev->net->hport;
+ u16 destid = rdev->rswitch->destid;
+ u8 hopcount = rdev->rswitch->hopcount;
+ u32 regval;
+ int portnum;
+
+ pr_debug("TSI578 %s [%d:%d]\n", __func__, destid, hopcount);
+
+ for (portnum = 0; portnum < 16; portnum++) {
+ /* Make sure that Port-Writes are enabled (for all ports) */
+ rio_mport_read_config_32(mport, destid, hopcount,
+ TSI578_SP_MODE(portnum), &regval);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ TSI578_SP_MODE(portnum),
+ regval & ~TSI578_SP_MODE_PW_DIS);
+
+ /* Clear all pending interrupts */
+ rio_mport_read_config_32(mport, destid, hopcount,
+ rdev->phys_efptr +
+ RIO_PORT_N_ERR_STS_CSR(portnum),
+ &regval);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ rdev->phys_efptr +
+ RIO_PORT_N_ERR_STS_CSR(portnum),
+ regval & 0x07120214);
+
+ rio_mport_read_config_32(mport, destid, hopcount,
+ TSI578_SP_INT_STATUS(portnum), &regval);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ TSI578_SP_INT_STATUS(portnum),
+ regval & 0x000700bd);
+
+ /* Enable all interrupts to allow ports to send a port-write */
+ rio_mport_read_config_32(mport, destid, hopcount,
+ TSI578_SP_CTL_INDEP(portnum), &regval);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ TSI578_SP_CTL_INDEP(portnum),
+ regval | 0x000b0000);
+
+ /* Skip next (odd) port if the current port is in x4 mode */
+ rio_mport_read_config_32(mport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_CTL_CSR(portnum),
+ &regval);
+ if ((regval & RIO_PORT_N_CTL_PWIDTH) == RIO_PORT_N_CTL_PWIDTH_4)
+ portnum++;
+ }
+
+ return 0;
+}
+
+static int
+tsi57x_em_handler(struct rio_dev *rdev, u8 portnum)
+{
+ struct rio_mport *mport = rdev->net->hport;
+ u16 destid = rdev->rswitch->destid;
+ u8 hopcount = rdev->rswitch->hopcount;
+ u32 intstat, err_status;
+ int sendcount, checkcount;
+ u8 route_port;
+ u32 regval;
+
+ rio_mport_read_config_32(mport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
+ &err_status);
+
+ if ((err_status & RIO_PORT_N_ERR_STS_PORT_OK) &&
+ (err_status & (RIO_PORT_N_ERR_STS_PW_OUT_ES |
+ RIO_PORT_N_ERR_STS_PW_INP_ES))) {
+ /* Remove any queued packets by locking/unlocking port */
+ rio_mport_read_config_32(mport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_CTL_CSR(portnum),
+ &regval);
+ if (!(regval & RIO_PORT_N_CTL_LOCKOUT)) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_CTL_CSR(portnum),
+ regval | RIO_PORT_N_CTL_LOCKOUT);
+ udelay(50);
+ rio_mport_write_config_32(mport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_CTL_CSR(portnum),
+ regval);
+ }
+
+ /* Read from link maintenance response register to clear
+ * valid bit
+ */
+ rio_mport_read_config_32(mport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_N_MNT_RSP_CSR(portnum),
+ &regval);
+
+ /* Send a Packet-Not-Accepted/Link-Request-Input-Status control
+ * symbol to recover from IES/OES
+ */
+ sendcount = 3;
+ while (sendcount) {
+ rio_mport_write_config_32(mport, destid, hopcount,
+ TSI578_SP_CS_TX(portnum), 0x40fc8000);
+ checkcount = 3;
+ while (checkcount--) {
+ udelay(50);
+ rio_mport_read_config_32(
+ mport, destid, hopcount,
+ rdev->phys_efptr +
+ RIO_PORT_N_MNT_RSP_CSR(portnum),
+ &regval);
+ if (regval & RIO_PORT_N_MNT_RSP_RVAL)
+ goto exit_es;
+ }
+
+ sendcount--;
+ }
+ }
+
+exit_es:
+ /* Clear implementation specific error status bits */
+ rio_mport_read_config_32(mport, destid, hopcount,
+ TSI578_SP_INT_STATUS(portnum), &intstat);
+ pr_debug("TSI578[%x:%x] SP%d_INT_STATUS=0x%08x\n",
+ destid, hopcount, portnum, intstat);
+
+ if (intstat & 0x10000) {
+ rio_mport_read_config_32(mport, destid, hopcount,
+ TSI578_SP_LUT_PEINF(portnum), &regval);
+ regval = (mport->sys_size) ? (regval >> 16) : (regval >> 24);
+ route_port = rdev->rswitch->route_table[regval];
+ pr_debug("RIO: TSI578[%s] P%d LUT Parity Error (destID=%d)\n",
+ rio_name(rdev), portnum, regval);
+ tsi57x_route_add_entry(mport, destid, hopcount,
+ RIO_GLOBAL_TABLE, regval, route_port);
+ }
+
+ rio_mport_write_config_32(mport, destid, hopcount,
+ TSI578_SP_INT_STATUS(portnum),
+ intstat & 0x000700bd);
+
+ return 0;
+}
+
+static int tsi57x_switch_init(struct rio_dev *rdev, int do_enum)
+{
+ pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
+ 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;
+
+ return 0;
+}
+
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI572, tsi57x_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI574, tsi57x_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI577, tsi57x_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI578, tsi57x_switch_init);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 08:36:47 +0000