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freebsd-skq/sys/dev/ale/if_alevar.h
yongari 6ab556156c Remove task queue based link state change handler. Driver no longer 
needs to defer link state handling.
While I'm here, mark IFF_DRV_RUNNING before changing media.  If
link is established without any delay, that link state change
handling could be lost.
2012-03-30 04:46:39 +00:00

250 lines
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/*-
* Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _IF_ALEVAR_H
#define _IF_ALEVAR_H
#define ALE_TX_RING_CNT 256 /* Should be multiple of 4. */
#define ALE_TX_RING_CNT_MIN 32
#define ALE_TX_RING_CNT_MAX 1020
#define ALE_TX_RING_ALIGN 8
#define ALE_RX_PAGE_ALIGN 32
#define ALE_RX_PAGES 2
#define ALE_CMB_ALIGN 32
#define ALE_TSO_MAXSEGSIZE 4096
#define ALE_TSO_MAXSIZE (65535 + sizeof(struct ether_vlan_header))
#define ALE_MAXTXSEGS 32
#define ALE_ADDR_LO(x) ((uint64_t) (x) & 0xFFFFFFFF)
#define ALE_ADDR_HI(x) ((uint64_t) (x) >> 32)
/* Water mark to kick reclaiming Tx buffers. */
#define ALE_TX_DESC_HIWAT (ALE_TX_RING_CNT - ((ALE_TX_RING_CNT * 4) / 10))
#define ALE_MSI_MESSAGES 1
#define ALE_MSIX_MESSAGES 1
/*
* TODO : Should get real jumbo MTU size.
* The hardware seems to have trouble in dealing with large
* frame length. If you encounter unstability issue, use
* lower MTU size.
*/
#define ALE_JUMBO_FRAMELEN 8132
#define ALE_JUMBO_MTU \
(ALE_JUMBO_FRAMELEN - sizeof(struct ether_vlan_header) - ETHER_CRC_LEN)
#define ALE_MAX_FRAMELEN (ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN)
#define ALE_DESC_INC(x, y) ((x) = ((x) + 1) % (y))
struct ale_txdesc {
struct mbuf *tx_m;
bus_dmamap_t tx_dmamap;
};
struct ale_rx_page {
bus_dma_tag_t page_tag;
bus_dmamap_t page_map;
uint8_t *page_addr;
bus_addr_t page_paddr;
bus_dma_tag_t cmb_tag;
bus_dmamap_t cmb_map;
uint32_t *cmb_addr;
bus_addr_t cmb_paddr;
uint32_t cons;
};
struct ale_chain_data{
bus_dma_tag_t ale_parent_tag;
bus_dma_tag_t ale_buffer_tag;
bus_dma_tag_t ale_tx_tag;
struct ale_txdesc ale_txdesc[ALE_TX_RING_CNT];
bus_dma_tag_t ale_tx_ring_tag;
bus_dmamap_t ale_tx_ring_map;
bus_dma_tag_t ale_rx_mblock_tag[ALE_RX_PAGES];
bus_dmamap_t ale_rx_mblock_map[ALE_RX_PAGES];
struct tx_desc *ale_tx_ring;
bus_addr_t ale_tx_ring_paddr;
uint32_t *ale_tx_cmb;
bus_addr_t ale_tx_cmb_paddr;
bus_dma_tag_t ale_tx_cmb_tag;
bus_dmamap_t ale_tx_cmb_map;
uint32_t ale_tx_prod;
uint32_t ale_tx_cons;
int ale_tx_cnt;
struct ale_rx_page ale_rx_page[ALE_RX_PAGES];
int ale_rx_curp;
uint16_t ale_rx_seqno;
};
#define ALE_TX_RING_SZ \
(sizeof(struct tx_desc) * ALE_TX_RING_CNT)
#define ALE_RX_PAGE_SZ_MIN (8 * 1024)
#define ALE_RX_PAGE_SZ_MAX (1024 * 1024)
#define ALE_RX_FRAMES_PAGE 128
#define ALE_RX_PAGE_SZ \
(roundup(ALE_MAX_FRAMELEN, ALE_RX_PAGE_ALIGN) * ALE_RX_FRAMES_PAGE)
#define ALE_TX_CMB_SZ (sizeof(uint32_t))
#define ALE_RX_CMB_SZ (sizeof(uint32_t))
#define ALE_PROC_MIN (ALE_RX_FRAMES_PAGE / 4)
#define ALE_PROC_MAX \
((ALE_RX_PAGE_SZ * ALE_RX_PAGES) / ETHER_MAX_LEN)
#define ALE_PROC_DEFAULT (ALE_PROC_MAX / 4)
struct ale_hw_stats {
/* Rx stats. */
uint32_t rx_frames;
uint32_t rx_bcast_frames;
uint32_t rx_mcast_frames;
uint32_t rx_pause_frames;
uint32_t rx_control_frames;
uint32_t rx_crcerrs;
uint32_t rx_lenerrs;
uint64_t rx_bytes;
uint32_t rx_runts;
uint32_t rx_fragments;
uint32_t rx_pkts_64;
uint32_t rx_pkts_65_127;
uint32_t rx_pkts_128_255;
uint32_t rx_pkts_256_511;
uint32_t rx_pkts_512_1023;
uint32_t rx_pkts_1024_1518;
uint32_t rx_pkts_1519_max;
uint32_t rx_pkts_truncated;
uint32_t rx_fifo_oflows;
uint32_t rx_rrs_errs;
uint32_t rx_alignerrs;
uint64_t rx_bcast_bytes;
uint64_t rx_mcast_bytes;
uint32_t rx_pkts_filtered;
/* Tx stats. */
uint32_t tx_frames;
uint32_t tx_bcast_frames;
uint32_t tx_mcast_frames;
uint32_t tx_pause_frames;
uint32_t tx_excess_defer;
uint32_t tx_control_frames;
uint32_t tx_deferred;
uint64_t tx_bytes;
uint32_t tx_pkts_64;
uint32_t tx_pkts_65_127;
uint32_t tx_pkts_128_255;
uint32_t tx_pkts_256_511;
uint32_t tx_pkts_512_1023;
uint32_t tx_pkts_1024_1518;
uint32_t tx_pkts_1519_max;
uint32_t tx_single_colls;
uint32_t tx_multi_colls;
uint32_t tx_late_colls;
uint32_t tx_excess_colls;
uint32_t tx_abort;
uint32_t tx_underrun;
uint32_t tx_desc_underrun;
uint32_t tx_lenerrs;
uint32_t tx_pkts_truncated;
uint64_t tx_bcast_bytes;
uint64_t tx_mcast_bytes;
/* Misc. */
uint32_t reset_brk_seq;
};
/*
* Software state per device.
*/
struct ale_softc {
struct ifnet *ale_ifp;
device_t ale_dev;
device_t ale_miibus;
struct resource *ale_res[1];
struct resource_spec *ale_res_spec;
struct resource *ale_irq[ALE_MSI_MESSAGES];
struct resource_spec *ale_irq_spec;
void *ale_intrhand[ALE_MSI_MESSAGES];
int ale_rev;
int ale_chip_rev;
int ale_phyaddr;
uint8_t ale_eaddr[ETHER_ADDR_LEN];
uint32_t ale_dma_rd_burst;
uint32_t ale_dma_wr_burst;
int ale_flags;
#define ALE_FLAG_PCIE 0x0001
#define ALE_FLAG_PCIX 0x0002
#define ALE_FLAG_MSI 0x0004
#define ALE_FLAG_MSIX 0x0008
#define ALE_FLAG_PMCAP 0x0010
#define ALE_FLAG_FASTETHER 0x0020
#define ALE_FLAG_JUMBO 0x0040
#define ALE_FLAG_RXCSUM_BUG 0x0080
#define ALE_FLAG_TXCSUM_BUG 0x0100
#define ALE_FLAG_TXCMB_BUG 0x0200
#define ALE_FLAG_LINK 0x8000
struct callout ale_tick_ch;
struct ale_hw_stats ale_stats;
struct ale_chain_data ale_cdata;
int ale_if_flags;
int ale_watchdog_timer;
int ale_process_limit;
volatile int ale_morework;
int ale_int_rx_mod;
int ale_int_tx_mod;
int ale_max_frame_size;
int ale_pagesize;
struct task ale_int_task;
struct taskqueue *ale_tq;
struct mtx ale_mtx;
};
/* Register access macros. */
#define CSR_WRITE_4(_sc, reg, val) \
bus_write_4((_sc)->ale_res[0], (reg), (val))
#define CSR_WRITE_2(_sc, reg, val) \
bus_write_2((_sc)->ale_res[0], (reg), (val))
#define CSR_WRITE_1(_sc, reg, val) \
bus_write_1((_sc)->ale_res[0], (reg), (val))
#define CSR_READ_2(_sc, reg) \
bus_read_2((_sc)->ale_res[0], (reg))
#define CSR_READ_4(_sc, reg) \
bus_read_4((_sc)->ale_res[0], (reg))
#define ALE_LOCK(_sc) mtx_lock(&(_sc)->ale_mtx)
#define ALE_UNLOCK(_sc) mtx_unlock(&(_sc)->ale_mtx)
#define ALE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->ale_mtx, MA_OWNED)
#define ALE_TX_TIMEOUT 5
#define ALE_RESET_TIMEOUT 100
#define ALE_TIMEOUT 1000
#define ALE_PHY_TIMEOUT 1000
#endif /* _IF_ATEVAR_H */
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