77388ed2f3
2. Use sysctls for TRACE_LRO_CNT and TRACE_TSO_PKT_LEN 3. remove unused mtx tx_lock 4. bind taskqueue kernel thread to the appropriate cpu core 5. when tx_ring is full, stop further transmits till at least 1/16th of the Tx Ring is empty. In our case 1K entries. Also if there are rx_pkts to process, put the taskqueue thread to sleep for 100ms, before enabling interrupts. 6. Use rx_pkt_threshold of 128. MFC after:3 days
157 lines
3.8 KiB
C
157 lines
3.8 KiB
C
/*
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* Copyright (c) 2017-2018 Cavium, Inc.
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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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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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/*
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* File: qlnx_os.h
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* Author : David C Somayajulu, Cavium, Inc., San Jose, CA 95131.
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*/
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#ifndef _QLNX_OS_H_
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#define _QLNX_OS_H_
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/kernel.h>
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#include <sys/sockio.h>
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#include <sys/types.h>
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#include <machine/atomic.h>
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#include <machine/_inttypes.h>
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#include <sys/conf.h>
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#if __FreeBSD_version < 1000000
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#error FreeBSD Version not supported - use version >= 1000000
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#endif
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/bpf.h>
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#include <net/if_types.h>
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#include <net/if_vlan_var.h>
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#include <netinet/in_systm.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <netinet/ip.h>
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#include <netinet/ip6.h>
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#include <netinet/tcp.h>
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#include <netinet/udp.h>
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#include <netinet/in_var.h>
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#include <netinet/tcp_lro.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <sys/mutex.h>
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#include <sys/condvar.h>
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#include <sys/proc.h>
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#include <sys/sysctl.h>
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#include <sys/endian.h>
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#include <sys/taskqueue.h>
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#include <sys/pcpu.h>
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#include <sys/unistd.h>
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#include <sys/kthread.h>
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#include <sys/libkern.h>
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#include <sys/smp.h>
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#include <sys/sched.h>
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static __inline int qlnx_ms_to_hz(int ms)
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{
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int qlnx_hz;
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struct timeval t;
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t.tv_sec = ms / 1000;
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t.tv_usec = (ms % 1000) * 1000;
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qlnx_hz = tvtohz(&t);
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if (qlnx_hz < 0)
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qlnx_hz = 0x7fffffff;
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if (!qlnx_hz)
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qlnx_hz = 1;
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return (qlnx_hz);
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}
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static __inline int qlnx_sec_to_hz(int sec)
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{
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struct timeval t;
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t.tv_sec = sec;
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t.tv_usec = 0;
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return (tvtohz(&t));
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}
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MALLOC_DECLARE(M_QLNXBUF);
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#define qlnx_mdelay(fn, msecs) \
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{\
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if (cold) \
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DELAY((msecs * 1000)); \
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else \
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pause(fn, qlnx_ms_to_hz(msecs)); \
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}
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/*
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* Locks
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*/
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#define QLNX_LOCK(ha) mtx_lock(&ha->hw_lock)
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#define QLNX_UNLOCK(ha) mtx_unlock(&ha->hw_lock)
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/*
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* structure encapsulating a DMA buffer
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*/
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struct qlnx_dma {
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bus_size_t alignment;
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uint32_t size;
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void *dma_b;
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bus_addr_t dma_addr;
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bus_dmamap_t dma_map;
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bus_dma_tag_t dma_tag;
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};
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typedef struct qlnx_dma qlnx_dma_t;
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#endif /* #ifndef _QLNX_OS_H_ */
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