52ee8ac027
out 32 is not enough to support a full sized TSO packet. While I'm here fix a long standing bug introduced in r169632 in bce(4) where it didn't include L2 header length of TSO packet in the maximum DMA segment size calculation. In collaboration with: rmacklem MFC after: 2 weeks
250 lines
7.2 KiB
C
250 lines
7.2 KiB
C
/*-
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* Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org>
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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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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* 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 AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _IF_ALEVAR_H
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#define _IF_ALEVAR_H
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#define ALE_TX_RING_CNT 256 /* Should be multiple of 4. */
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#define ALE_TX_RING_CNT_MIN 32
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#define ALE_TX_RING_CNT_MAX 1020
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#define ALE_TX_RING_ALIGN 8
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#define ALE_RX_PAGE_ALIGN 32
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#define ALE_RX_PAGES 2
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#define ALE_CMB_ALIGN 32
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#define ALE_TSO_MAXSEGSIZE 4096
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#define ALE_TSO_MAXSIZE (65535 + sizeof(struct ether_vlan_header))
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#define ALE_MAXTXSEGS 35
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#define ALE_ADDR_LO(x) ((uint64_t) (x) & 0xFFFFFFFF)
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#define ALE_ADDR_HI(x) ((uint64_t) (x) >> 32)
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/* Water mark to kick reclaiming Tx buffers. */
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#define ALE_TX_DESC_HIWAT (ALE_TX_RING_CNT - ((ALE_TX_RING_CNT * 4) / 10))
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#define ALE_MSI_MESSAGES 1
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#define ALE_MSIX_MESSAGES 1
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/*
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* TODO : Should get real jumbo MTU size.
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* The hardware seems to have trouble in dealing with large
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* frame length. If you encounter unstability issue, use
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* lower MTU size.
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*/
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#define ALE_JUMBO_FRAMELEN 8132
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#define ALE_JUMBO_MTU \
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(ALE_JUMBO_FRAMELEN - sizeof(struct ether_vlan_header) - ETHER_CRC_LEN)
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#define ALE_MAX_FRAMELEN (ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN)
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#define ALE_DESC_INC(x, y) ((x) = ((x) + 1) % (y))
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struct ale_txdesc {
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struct mbuf *tx_m;
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bus_dmamap_t tx_dmamap;
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};
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struct ale_rx_page {
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bus_dma_tag_t page_tag;
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bus_dmamap_t page_map;
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uint8_t *page_addr;
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bus_addr_t page_paddr;
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bus_dma_tag_t cmb_tag;
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bus_dmamap_t cmb_map;
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uint32_t *cmb_addr;
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bus_addr_t cmb_paddr;
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uint32_t cons;
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};
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struct ale_chain_data{
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bus_dma_tag_t ale_parent_tag;
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bus_dma_tag_t ale_buffer_tag;
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bus_dma_tag_t ale_tx_tag;
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struct ale_txdesc ale_txdesc[ALE_TX_RING_CNT];
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bus_dma_tag_t ale_tx_ring_tag;
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bus_dmamap_t ale_tx_ring_map;
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bus_dma_tag_t ale_rx_mblock_tag[ALE_RX_PAGES];
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bus_dmamap_t ale_rx_mblock_map[ALE_RX_PAGES];
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struct tx_desc *ale_tx_ring;
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bus_addr_t ale_tx_ring_paddr;
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uint32_t *ale_tx_cmb;
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bus_addr_t ale_tx_cmb_paddr;
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bus_dma_tag_t ale_tx_cmb_tag;
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bus_dmamap_t ale_tx_cmb_map;
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uint32_t ale_tx_prod;
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uint32_t ale_tx_cons;
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int ale_tx_cnt;
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struct ale_rx_page ale_rx_page[ALE_RX_PAGES];
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int ale_rx_curp;
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uint16_t ale_rx_seqno;
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};
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#define ALE_TX_RING_SZ \
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(sizeof(struct tx_desc) * ALE_TX_RING_CNT)
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#define ALE_RX_PAGE_SZ_MIN (8 * 1024)
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#define ALE_RX_PAGE_SZ_MAX (1024 * 1024)
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#define ALE_RX_FRAMES_PAGE 128
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#define ALE_RX_PAGE_SZ \
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(roundup(ALE_MAX_FRAMELEN, ALE_RX_PAGE_ALIGN) * ALE_RX_FRAMES_PAGE)
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#define ALE_TX_CMB_SZ (sizeof(uint32_t))
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#define ALE_RX_CMB_SZ (sizeof(uint32_t))
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#define ALE_PROC_MIN (ALE_RX_FRAMES_PAGE / 4)
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#define ALE_PROC_MAX \
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((ALE_RX_PAGE_SZ * ALE_RX_PAGES) / ETHER_MAX_LEN)
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#define ALE_PROC_DEFAULT (ALE_PROC_MAX / 4)
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struct ale_hw_stats {
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/* Rx stats. */
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uint32_t rx_frames;
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uint32_t rx_bcast_frames;
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uint32_t rx_mcast_frames;
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uint32_t rx_pause_frames;
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uint32_t rx_control_frames;
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uint32_t rx_crcerrs;
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uint32_t rx_lenerrs;
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uint64_t rx_bytes;
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uint32_t rx_runts;
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uint32_t rx_fragments;
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uint32_t rx_pkts_64;
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uint32_t rx_pkts_65_127;
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uint32_t rx_pkts_128_255;
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uint32_t rx_pkts_256_511;
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uint32_t rx_pkts_512_1023;
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uint32_t rx_pkts_1024_1518;
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uint32_t rx_pkts_1519_max;
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uint32_t rx_pkts_truncated;
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uint32_t rx_fifo_oflows;
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uint32_t rx_rrs_errs;
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uint32_t rx_alignerrs;
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uint64_t rx_bcast_bytes;
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uint64_t rx_mcast_bytes;
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uint32_t rx_pkts_filtered;
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/* Tx stats. */
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uint32_t tx_frames;
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uint32_t tx_bcast_frames;
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uint32_t tx_mcast_frames;
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uint32_t tx_pause_frames;
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uint32_t tx_excess_defer;
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uint32_t tx_control_frames;
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uint32_t tx_deferred;
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uint64_t tx_bytes;
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uint32_t tx_pkts_64;
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uint32_t tx_pkts_65_127;
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uint32_t tx_pkts_128_255;
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uint32_t tx_pkts_256_511;
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uint32_t tx_pkts_512_1023;
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uint32_t tx_pkts_1024_1518;
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uint32_t tx_pkts_1519_max;
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uint32_t tx_single_colls;
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uint32_t tx_multi_colls;
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uint32_t tx_late_colls;
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uint32_t tx_excess_colls;
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uint32_t tx_abort;
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uint32_t tx_underrun;
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uint32_t tx_desc_underrun;
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uint32_t tx_lenerrs;
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uint32_t tx_pkts_truncated;
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uint64_t tx_bcast_bytes;
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uint64_t tx_mcast_bytes;
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/* Misc. */
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uint32_t reset_brk_seq;
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};
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/*
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* Software state per device.
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*/
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struct ale_softc {
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struct ifnet *ale_ifp;
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device_t ale_dev;
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device_t ale_miibus;
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struct resource *ale_res[1];
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struct resource_spec *ale_res_spec;
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struct resource *ale_irq[ALE_MSI_MESSAGES];
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struct resource_spec *ale_irq_spec;
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void *ale_intrhand[ALE_MSI_MESSAGES];
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int ale_rev;
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int ale_chip_rev;
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int ale_phyaddr;
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uint8_t ale_eaddr[ETHER_ADDR_LEN];
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uint32_t ale_dma_rd_burst;
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uint32_t ale_dma_wr_burst;
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int ale_flags;
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#define ALE_FLAG_PCIE 0x0001
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#define ALE_FLAG_PCIX 0x0002
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#define ALE_FLAG_MSI 0x0004
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#define ALE_FLAG_MSIX 0x0008
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#define ALE_FLAG_PMCAP 0x0010
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#define ALE_FLAG_FASTETHER 0x0020
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#define ALE_FLAG_JUMBO 0x0040
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#define ALE_FLAG_RXCSUM_BUG 0x0080
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#define ALE_FLAG_TXCSUM_BUG 0x0100
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#define ALE_FLAG_TXCMB_BUG 0x0200
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#define ALE_FLAG_LINK 0x8000
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struct callout ale_tick_ch;
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struct ale_hw_stats ale_stats;
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struct ale_chain_data ale_cdata;
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int ale_if_flags;
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int ale_watchdog_timer;
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int ale_process_limit;
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volatile int ale_morework;
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int ale_int_rx_mod;
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int ale_int_tx_mod;
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int ale_max_frame_size;
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int ale_pagesize;
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struct task ale_int_task;
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struct taskqueue *ale_tq;
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struct mtx ale_mtx;
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};
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/* Register access macros. */
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#define CSR_WRITE_4(_sc, reg, val) \
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bus_write_4((_sc)->ale_res[0], (reg), (val))
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#define CSR_WRITE_2(_sc, reg, val) \
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bus_write_2((_sc)->ale_res[0], (reg), (val))
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#define CSR_WRITE_1(_sc, reg, val) \
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bus_write_1((_sc)->ale_res[0], (reg), (val))
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#define CSR_READ_2(_sc, reg) \
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bus_read_2((_sc)->ale_res[0], (reg))
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#define CSR_READ_4(_sc, reg) \
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bus_read_4((_sc)->ale_res[0], (reg))
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#define ALE_LOCK(_sc) mtx_lock(&(_sc)->ale_mtx)
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#define ALE_UNLOCK(_sc) mtx_unlock(&(_sc)->ale_mtx)
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#define ALE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->ale_mtx, MA_OWNED)
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#define ALE_TX_TIMEOUT 5
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#define ALE_RESET_TIMEOUT 100
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#define ALE_TIMEOUT 1000
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#define ALE_PHY_TIMEOUT 1000
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#endif /* _IF_ATEVAR_H */
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