// SPDX-License-Identifier: GPL-2.0-or-later /* * IDT RXS Gen.3 Serial RapidIO switch family support * * Copyright 2016 Integrated Device Technology, Inc. */ #include <linux/stat.h> #include <linux/module.h> #include <linux/rio.h> #include <linux/rio_drv.h> #include <linux/rio_ids.h> #include <linux/delay.h> #include <asm/page.h> #include "../rio.h" #define RIO_EM_PW_STAT … #define RIO_PW_CTL … #define RIO_PW_CTL_PW_TMR … #define RIO_PW_ROUTE … #define RIO_EM_DEV_INT_EN … #define RIO_PLM_SPx_IMP_SPEC_CTL(x) … #define RIO_PLM_SPx_IMP_SPEC_CTL_SOFT_RST … #define RIO_PLM_SPx_PW_EN(x) … #define RIO_PLM_SPx_PW_EN_OK2U … #define RIO_PLM_SPx_PW_EN_LINIT … #define RIO_BC_L2_Gn_ENTRYx_CSR(n, x) … #define RIO_SPx_L2_Gn_ENTRYy_CSR(x, n, y) … static int idtg3_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount, u16 table, u16 route_destid, u8 route_port) { … } static int idtg3_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount, u16 table, u16 route_destid, u8 *route_port) { … } static int idtg3_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount, u16 table) { … } /* * This routine performs device-specific initialization only. * All standard EM configuration should be performed at upper level. */ static int idtg3_em_init(struct rio_dev *rdev) { … } /* * idtg3_em_handler - device-specific error handler * * If the link is down (PORT_UNINIT) does nothing - this is considered * as link partner removal from the port. * * If the link is up (PORT_OK) - situation is handled as *new* device insertion. * In this case ERR_STOP bits are cleared by issuing soft reset command to the * reporting port. Inbound and outbound ackIDs are cleared by the reset as well. * This way the port is synchronized with freshly inserted device (assuming it * was reset/powered-up on insertion). * * TODO: This is not sufficient in a situation when a link between two devices * was down and up again (e.g. cable disconnect). For that situation full ackID * realignment process has to be implemented. */ static int idtg3_em_handler(struct rio_dev *rdev, u8 pnum) { … } static struct rio_switch_ops idtg3_switch_ops = …; static int idtg3_probe(struct rio_dev *rdev, const struct rio_device_id *id) { … } static void idtg3_remove(struct rio_dev *rdev) { … } /* * Gen3 switches repeat sending PW messages until a corresponding event flag * is cleared. Use shutdown notification to disable generation of port-write * messages if their destination node is shut down. */ static void idtg3_shutdown(struct rio_dev *rdev) { … } static const struct rio_device_id idtg3_id_table[] = …; static struct rio_driver idtg3_driver = …; static int __init idtg3_init(void) { … } static void __exit idtg3_exit(void) { … } device_initcall(idtg3_init); module_exit(idtg3_exit); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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