/********************************************************************** * Author: Cavium, Inc. * * Contact: [email protected] * Please include "LiquidIO" in the subject. * * Copyright (c) 2003-2016 Cavium, Inc. * * This file is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, Version 2, as * published by the Free Software Foundation. * * This file is distributed in the hope that it will be useful, but * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or * NONINFRINGEMENT. See the GNU General Public License for more details. ***********************************************************************/ #include <linux/pci.h> #include <linux/if_vlan.h> #include "liquidio_common.h" #include "octeon_droq.h" #include "octeon_iq.h" #include "response_manager.h" #include "octeon_device.h" #include "octeon_nic.h" #include "octeon_main.h" #include "octeon_network.h" MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; /* OOM task polling interval */ #define LIO_OOM_POLL_INTERVAL_MS … #define OCTNIC_MAX_SG … /** * lio_delete_glists - Delete gather lists * @lio: per-network private data */ void lio_delete_glists(struct lio *lio) { … } EXPORT_SYMBOL_GPL(…); /** * lio_setup_glists - Setup gather lists * @oct: octeon_device * @lio: per-network private data * @num_iqs: count of iqs to allocate */ int lio_setup_glists(struct octeon_device *oct, struct lio *lio, int num_iqs) { … } EXPORT_SYMBOL_GPL(…); int liquidio_set_feature(struct net_device *netdev, int cmd, u16 param1) { … } EXPORT_SYMBOL_GPL(…); void octeon_report_tx_completion_to_bql(void *txq, unsigned int pkts_compl, unsigned int bytes_compl) { … } void octeon_update_tx_completion_counters(void *buf, int reqtype, unsigned int *pkts_compl, unsigned int *bytes_compl) { … } int octeon_report_sent_bytes_to_bql(void *buf, int reqtype) { … } void liquidio_link_ctrl_cmd_completion(void *nctrl_ptr) { … } EXPORT_SYMBOL_GPL(…); void octeon_pf_changed_vf_macaddr(struct octeon_device *oct, u8 *mac) { … } void octeon_schedule_rxq_oom_work(struct octeon_device *oct, struct octeon_droq *droq) { … } static void octnet_poll_check_rxq_oom_status(struct work_struct *work) { … } int setup_rx_oom_poll_fn(struct net_device *netdev) { … } EXPORT_SYMBOL_GPL(…); void cleanup_rx_oom_poll_fn(struct net_device *netdev) { … } EXPORT_SYMBOL_GPL(…); /* Runs in interrupt context. */ static void lio_update_txq_status(struct octeon_device *oct, int iq_num) { … } /** * octeon_setup_droq - Setup output queue * @oct: octeon device * @q_no: which queue * @num_descs: how many descriptors * @desc_size: size of each descriptor * @app_ctx: application context */ static int octeon_setup_droq(struct octeon_device *oct, int q_no, int num_descs, int desc_size, void *app_ctx) { … } /** * liquidio_push_packet - Routine to push packets arriving on Octeon interface upto network layer. * @octeon_id:octeon device id. * @skbuff: skbuff struct to be passed to network layer. * @len: size of total data received. * @rh: Control header associated with the packet * @param: additional control data with the packet * @arg: farg registered in droq_ops */ static void liquidio_push_packet(u32 __maybe_unused octeon_id, void *skbuff, u32 len, union octeon_rh *rh, void *param, void *arg) { … } /** * napi_schedule_wrapper - wrapper for calling napi_schedule * @param: parameters to pass to napi_schedule * * Used when scheduling on different CPUs */ static void napi_schedule_wrapper(void *param) { … } /** * liquidio_napi_drv_callback - callback when receive interrupt occurs and we are in NAPI mode * @arg: pointer to octeon output queue */ static void liquidio_napi_drv_callback(void *arg) { … } /** * liquidio_napi_poll - Entry point for NAPI polling * @napi: NAPI structure * @budget: maximum number of items to process */ static int liquidio_napi_poll(struct napi_struct *napi, int budget) { … } /** * liquidio_setup_io_queues - Setup input and output queues * @octeon_dev: octeon device * @ifidx: Interface index * @num_iqs: input io queue count * @num_oqs: output io queue count * * Note: Queues are with respect to the octeon device. Thus * an input queue is for egress packets, and output queues * are for ingress packets. */ int liquidio_setup_io_queues(struct octeon_device *octeon_dev, int ifidx, u32 num_iqs, u32 num_oqs) { … } EXPORT_SYMBOL_GPL(…); static int liquidio_schedule_msix_droq_pkt_handler(struct octeon_droq *droq, u64 ret) { … } irqreturn_t liquidio_msix_intr_handler(int __maybe_unused irq, void *dev) { … } /** * liquidio_schedule_droq_pkt_handlers - Droq packet processor sceduler * @oct: octeon device */ static void liquidio_schedule_droq_pkt_handlers(struct octeon_device *oct) { … } /** * liquidio_legacy_intr_handler - Interrupt handler for octeon * @irq: unused * @dev: octeon device */ static irqreturn_t liquidio_legacy_intr_handler(int __maybe_unused irq, void *dev) { … } /** * octeon_setup_interrupt - Setup interrupt for octeon device * @oct: octeon device * @num_ioqs: number of queues * * Enable interrupt in Octeon device as given in the PCI interrupt mask. */ int octeon_setup_interrupt(struct octeon_device *oct, u32 num_ioqs) { … } EXPORT_SYMBOL_GPL(…); /** * liquidio_change_mtu - Net device change_mtu * @netdev: network device * @new_mtu: the new max transmit unit size */ int liquidio_change_mtu(struct net_device *netdev, int new_mtu) { … } EXPORT_SYMBOL_GPL(…); int lio_wait_for_clean_oq(struct octeon_device *oct) { … } EXPORT_SYMBOL_GPL(…); static void octnet_nic_stats_callback(struct octeon_device *oct_dev, u32 status, void *ptr) { … } static int lio_fetch_vf_stats(struct lio *lio) { … } void lio_fetch_stats(struct work_struct *work) { … } EXPORT_SYMBOL_GPL(…); int liquidio_set_speed(struct lio *lio, int speed) { … } int liquidio_get_speed(struct lio *lio) { … } EXPORT_SYMBOL_GPL(…); int liquidio_set_fec(struct lio *lio, int on_off) { … } int liquidio_get_fec(struct lio *lio) { … } EXPORT_SYMBOL_GPL(…);
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