f49fd63a6a
Reviewed by: kib, markj Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D36549
294 lines
7.1 KiB
C
294 lines
7.1 KiB
C
/*
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* BSD LICENSE
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*
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* Copyright(c) 2017 Cavium, Inc.. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Cavium, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*$FreeBSD$*/
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/* \file lio_network.h
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* \brief Host NIC Driver: Structure and Macro definitions used by NIC Module.
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*/
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#ifndef __LIO_NETWORK_H__
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#define __LIO_NETWORK_H__
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#include "lio_rss.h"
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#define LIO_MIN_MTU_SIZE 72
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#define LIO_MAX_MTU_SIZE (LIO_MAX_FRM_SIZE - LIO_FRM_HEADER_SIZE)
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#define LIO_MAX_SG 64
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#define LIO_MAX_FRAME_SIZE 60000
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struct lio_fw_stats_resp {
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uint64_t rh;
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struct octeon_link_stats stats;
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uint64_t status;
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};
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/* LiquidIO per-interface network private data */
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struct lio {
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/* State of the interface. Rx/Tx happens only in the RUNNING state. */
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int ifstate;
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/*
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* Octeon Interface index number. This device will be represented as
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* oct<ifidx> in the system.
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*/
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int ifidx;
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/* Octeon Input queue to use to transmit for this network interface. */
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int txq;
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/*
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* Octeon Output queue from which pkts arrive
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* for this network interface.
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*/
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int rxq;
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/* Guards each glist */
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struct mtx *glist_lock;
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#define LIO_DEFAULT_STATS_INTERVAL 10000
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/* callout timer for stats */
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struct callout stats_timer;
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/* Stats Update Interval in milli Seconds */
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uint16_t stats_interval;
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/* IRQ coalescing driver stats */
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struct octeon_intrmod_cfg intrmod_cfg;
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/* Array of gather component linked lists */
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struct lio_stailq_head *ghead;
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void **glists_virt_base;
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vm_paddr_t *glists_dma_base;
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uint32_t glist_entry_size;
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/* Pointer to the octeon device structure. */
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struct octeon_device *oct_dev;
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struct ifnet *ifp;
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struct ifmedia ifmedia;
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int if_flags;
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/* Link information sent by the core application for this interface. */
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struct octeon_link_info linfo;
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/* counter of link changes */
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uint64_t link_changes;
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/* Size of Tx queue for this octeon device. */
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uint32_t tx_qsize;
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/* Size of Rx queue for this octeon device. */
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uint32_t rx_qsize;
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/* Size of MTU this octeon device. */
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uint32_t mtu;
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/* msg level flag per interface. */
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uint32_t msg_enable;
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/* Interface info */
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uint32_t intf_open;
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/* task queue for rx oom status */
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struct lio_tq rx_status_tq;
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/* VLAN Filtering related */
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eventhandler_tag vlan_attach;
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eventhandler_tag vlan_detach;
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#ifdef RSS
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struct lio_rss_params_set rss_set;
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#endif /* RSS */
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};
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#define LIO_MAX_CORES 12
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/*
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* \brief Enable or disable feature
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* @param ifp pointer to network device
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* @param cmd Command that just requires acknowledgment
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* @param param1 Parameter to command
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*/
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int lio_set_feature(struct ifnet *ifp, int cmd, uint16_t param1);
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/*
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* \brief Link control command completion callback
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* @param nctrl_ptr pointer to control packet structure
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*
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* This routine is called by the callback function when a ctrl pkt sent to
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* core app completes. The nctrl_ptr contains a copy of the command type
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* and data sent to the core app. This routine is only called if the ctrl
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* pkt was sent successfully to the core app.
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*/
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void lio_ctrl_cmd_completion(void *nctrl_ptr);
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int lio_setup_io_queues(struct octeon_device *octeon_dev, int ifidx,
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uint32_t num_iqs, uint32_t num_oqs);
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int lio_setup_interrupt(struct octeon_device *oct, uint32_t num_ioqs);
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static inline void *
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lio_recv_buffer_alloc(uint32_t size)
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{
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struct mbuf *mb = NULL;
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mb = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, size);
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if (mb != NULL)
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mb->m_pkthdr.len = mb->m_len = size;
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return ((void *)mb);
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}
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static inline void
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lio_recv_buffer_free(void *buffer)
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{
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m_freem((struct mbuf *)buffer);
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}
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static inline int
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lio_get_order(unsigned long size)
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{
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int order;
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size = (size - 1) >> PAGE_SHIFT;
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order = 0;
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while (size) {
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order++;
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size >>= 1;
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}
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return (order);
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}
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static inline void *
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lio_dma_alloc(size_t size, vm_paddr_t *dma_handle)
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{
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size_t align;
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void *mem;
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align = PAGE_SIZE << lio_get_order(size);
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mem = kmem_alloc_contig(size, M_WAITOK, 0, ~0ul, align, 0,
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VM_MEMATTR_DEFAULT);
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if (mem != NULL)
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*dma_handle = vtophys(mem);
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else
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*dma_handle = 0;
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return (mem);
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}
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static inline void
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lio_dma_free(size_t size, void *cpu_addr)
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{
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kmem_free(cpu_addr, size);
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}
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static inline uint64_t
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lio_map_ring(device_t dev, void *buf, uint32_t size)
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{
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vm_paddr_t dma_addr;
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dma_addr = vtophys(((struct mbuf *)buf)->m_data);
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return ((uint64_t)dma_addr);
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}
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/*
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* \brief check interface state
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* @param lio per-network private data
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* @param state_flag flag state to check
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*/
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static inline int
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lio_ifstate_check(struct lio *lio, int state_flag)
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{
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return (atomic_load_acq_int(&lio->ifstate) & state_flag);
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}
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/*
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* \brief set interface state
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* @param lio per-network private data
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* @param state_flag flag state to set
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*/
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static inline void
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lio_ifstate_set(struct lio *lio, int state_flag)
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{
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atomic_store_rel_int(&lio->ifstate,
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(atomic_load_acq_int(&lio->ifstate) | state_flag));
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}
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/*
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* \brief clear interface state
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* @param lio per-network private data
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* @param state_flag flag state to clear
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*/
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static inline void
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lio_ifstate_reset(struct lio *lio, int state_flag)
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{
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atomic_store_rel_int(&lio->ifstate,
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(atomic_load_acq_int(&lio->ifstate) &
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~(state_flag)));
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}
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/*
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* \brief wait for all pending requests to complete
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* @param oct Pointer to Octeon device
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*
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* Called during shutdown sequence
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*/
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static inline int
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lio_wait_for_pending_requests(struct octeon_device *oct)
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{
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int i, pcount = 0;
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for (i = 0; i < 100; i++) {
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pcount = atomic_load_acq_int(
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&oct->response_list[LIO_ORDERED_SC_LIST].
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pending_req_count);
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if (pcount)
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lio_sleep_timeout(100);
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else
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break;
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}
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if (pcount)
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return (1);
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return (0);
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}
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#endif /* __LIO_NETWORK_H__ */
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