f6b1d9cab8
- Bring HEAD up to the latest shared code - Fix TSO problem using limited MSS and forwarding - Dual lock implementation - New device support - For my ease, this code can compile in either 6.x or later - brings this driver in sync with the 6.3
317 lines
13 KiB
C
317 lines
13 KiB
C
/*******************************************************************************
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Copyright (c) 2001-2007, Intel Corporation
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All rights reserved.
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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 are met:
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1. Redistributions of source code must retain the above copyright notice,
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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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3. Neither the name of the Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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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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#ifndef _E1000_82575_H_
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#define _E1000_82575_H_
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/*
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* Receive Address Register Count
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* Number of high/low register pairs in the RAR. The RAR (Receive Address
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* Registers) holds the directed and multicast addresses that we monitor.
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* These entries are also used for MAC-based filtering.
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*/
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#define E1000_RAR_ENTRIES_82575 16
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#ifdef E1000_BIT_FIELDS
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struct e1000_adv_data_desc {
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u64 buffer_addr; /* Address of the descriptor's data buffer */
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union {
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u32 data;
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struct {
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u32 datalen :16; /* Data buffer length */
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u32 rsvd :4;
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u32 dtyp :4; /* Descriptor type */
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u32 dcmd :8; /* Descriptor command */
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} config;
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} lower;
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union {
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u32 data;
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struct {
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u32 status :4; /* Descriptor status */
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u32 idx :4;
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u32 popts :6; /* Packet Options */
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u32 paylen :18; /* Payload length */
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} options;
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} upper;
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};
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#define E1000_TXD_DTYP_ADV_C 0x2 /* Advanced Context Descriptor */
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#define E1000_TXD_DTYP_ADV_D 0x3 /* Advanced Data Descriptor */
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#define E1000_ADV_TXD_CMD_DEXT 0x20 /* Descriptor extension (0 = legacy) */
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#define E1000_ADV_TUCMD_IPV4 0x2 /* IP Packet Type: 1=IPv4 */
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#define E1000_ADV_TUCMD_IPV6 0x0 /* IP Packet Type: 0=IPv6 */
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#define E1000_ADV_TUCMD_L4T_UDP 0x0 /* L4 Packet TYPE of UDP */
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#define E1000_ADV_TUCMD_L4T_TCP 0x4 /* L4 Packet TYPE of TCP */
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#define E1000_ADV_TUCMD_MKRREQ 0x10 /* Indicates markers are required */
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#define E1000_ADV_DCMD_EOP 0x1 /* End of Packet */
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#define E1000_ADV_DCMD_IFCS 0x2 /* Insert FCS (Ethernet CRC) */
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#define E1000_ADV_DCMD_RS 0x8 /* Report Status */
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#define E1000_ADV_DCMD_VLE 0x40 /* Add VLAN tag */
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#define E1000_ADV_DCMD_TSE 0x80 /* TCP Seg enable */
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struct e1000_adv_context_desc {
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union {
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u32 ip_config;
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struct {
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u32 iplen :9;
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u32 maclen :7;
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u32 vlan_tag :16;
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} fields;
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} ip_setup;
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u32 seq_num;
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union {
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u64 l4_config;
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struct {
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u32 mkrloc :9;
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u32 tucmd :11;
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u32 dtyp :4;
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u32 adv :8;
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u32 rsvd :4;
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u32 idx :4;
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u32 l4len :8;
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u32 mss :16;
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} fields;
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} l4_setup;
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};
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#endif
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/* SRRCTL bit definitions */
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#define E1000_SRRCTL_BSIZEPKT_SHIFT 10 /* Shift _right_ */
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#define E1000_SRRCTL_BSIZEHDRSIZE_MASK 0x00000F00
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#define E1000_SRRCTL_BSIZEHDRSIZE_SHIFT 2 /* Shift _left_ */
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#define E1000_SRRCTL_DESCTYPE_LEGACY 0x00000000
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#define E1000_SRRCTL_DESCTYPE_ADV_ONEBUF 0x02000000
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#define E1000_SRRCTL_DESCTYPE_HDR_SPLIT 0x04000000
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#define E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS 0x0A000000
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#define E1000_SRRCTL_DESCTYPE_HDR_REPLICATION 0x06000000
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#define E1000_SRRCTL_DESCTYPE_HDR_REPLICATION_LARGE_PKT 0x08000000
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#define E1000_SRRCTL_DESCTYPE_MASK 0x0E000000
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#define E1000_SRRCTL_BSIZEPKT_MASK 0x0000007F
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#define E1000_SRRCTL_BSIZEHDR_MASK 0x00003F00
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#define E1000_TX_HEAD_WB_ENABLE 0x1
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#define E1000_TX_SEQNUM_WB_ENABLE 0x2
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#define E1000_MRQC_ENABLE_RSS_4Q 0x00000002
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#define E1000_MRQC_RSS_FIELD_IPV4_UDP 0x00400000
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#define E1000_MRQC_RSS_FIELD_IPV6_UDP 0x00800000
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#define E1000_MRQC_RSS_FIELD_IPV6_UDP_EX 0x01000000
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#define E1000_EICR_TX_QUEUE ( \
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E1000_EICR_TX_QUEUE0 | \
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E1000_EICR_TX_QUEUE1 | \
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E1000_EICR_TX_QUEUE2 | \
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E1000_EICR_TX_QUEUE3)
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#define E1000_EICR_RX_QUEUE ( \
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E1000_EICR_RX_QUEUE0 | \
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E1000_EICR_RX_QUEUE1 | \
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E1000_EICR_RX_QUEUE2 | \
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E1000_EICR_RX_QUEUE3)
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#define E1000_EIMS_RX_QUEUE E1000_EICR_RX_QUEUE
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#define E1000_EIMS_TX_QUEUE E1000_EICR_TX_QUEUE
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#define EIMS_ENABLE_MASK ( \
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E1000_EIMS_RX_QUEUE | \
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E1000_EIMS_TX_QUEUE | \
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E1000_EIMS_TCP_TIMER | \
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E1000_EIMS_OTHER)
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/* Immediate Interrupt Rx (A.K.A. Low Latency Interrupt) */
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#define E1000_IMIR_PORT_IM_EN 0x00010000 /* TCP port enable */
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#define E1000_IMIR_PORT_BP 0x00020000 /* TCP port check bypass */
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#define E1000_IMIREXT_SIZE_BP 0x00001000 /* Packet size bypass */
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#define E1000_IMIREXT_CTRL_URG 0x00002000 /* Check URG bit in header */
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#define E1000_IMIREXT_CTRL_ACK 0x00004000 /* Check ACK bit in header */
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#define E1000_IMIREXT_CTRL_PSH 0x00008000 /* Check PSH bit in header */
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#define E1000_IMIREXT_CTRL_RST 0x00010000 /* Check RST bit in header */
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#define E1000_IMIREXT_CTRL_SYN 0x00020000 /* Check SYN bit in header */
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#define E1000_IMIREXT_CTRL_FIN 0x00040000 /* Check FIN bit in header */
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#define E1000_IMIREXT_CTRL_BP 0x00080000 /* Bypass check of control bits */
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/* Receive Descriptor - Advanced */
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union e1000_adv_rx_desc {
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struct {
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u64 pkt_addr; /* Packet buffer address */
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u64 hdr_addr; /* Header buffer address */
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} read;
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struct {
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struct {
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struct {
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u16 pkt_info; /* RSS type, Packet type */
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u16 hdr_info; /* Split Header,
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* header buffer length */
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} lo_dword;
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union {
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u32 rss; /* RSS Hash */
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struct {
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u16 ip_id; /* IP id */
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u16 csum; /* Packet Checksum */
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} csum_ip;
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} hi_dword;
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} lower;
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struct {
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u32 status_error; /* ext status/error */
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u16 length; /* Packet length */
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u16 vlan; /* VLAN tag */
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} upper;
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} wb; /* writeback */
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};
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#define E1000_RXDADV_RSSTYPE_MASK 0x0000F000
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#define E1000_RXDADV_RSSTYPE_SHIFT 12
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#define E1000_RXDADV_HDRBUFLEN_MASK 0x7FE0
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#define E1000_RXDADV_HDRBUFLEN_SHIFT 5
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#define E1000_RXDADV_SPLITHEADER_EN 0x00001000
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#define E1000_RXDADV_SPH 0x8000
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#define E1000_RXDADV_HBO 0x00800000
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/* RSS Hash results */
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#define E1000_RXDADV_RSSTYPE_NONE 0x00000000
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#define E1000_RXDADV_RSSTYPE_IPV4_TCP 0x00000001
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#define E1000_RXDADV_RSSTYPE_IPV4 0x00000002
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#define E1000_RXDADV_RSSTYPE_IPV6_TCP 0x00000003
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#define E1000_RXDADV_RSSTYPE_IPV6_EX 0x00000004
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#define E1000_RXDADV_RSSTYPE_IPV6 0x00000005
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#define E1000_RXDADV_RSSTYPE_IPV6_TCP_EX 0x00000006
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#define E1000_RXDADV_RSSTYPE_IPV4_UDP 0x00000007
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#define E1000_RXDADV_RSSTYPE_IPV6_UDP 0x00000008
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#define E1000_RXDADV_RSSTYPE_IPV6_UDP_EX 0x00000009
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/* RSS Packet Types as indicated in the receive descriptor */
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#define E1000_RXDADV_PKTTYPE_NONE 0x00000000
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#define E1000_RXDADV_PKTTYPE_IPV4 0x00000010 /* IPV4 hdr present */
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#define E1000_RXDADV_PKTTYPE_IPV4_EX 0x00000020 /* IPV4 hdr + extensions */
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#define E1000_RXDADV_PKTTYPE_IPV6 0x00000040 /* IPV6 hdr present */
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#define E1000_RXDADV_PKTTYPE_IPV6_EX 0x00000080 /* IPV6 hdr + extensions */
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#define E1000_RXDADV_PKTTYPE_TCP 0x00000100 /* TCP hdr present */
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#define E1000_RXDADV_PKTTYPE_UDP 0x00000200 /* UDP hdr present */
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#define E1000_RXDADV_PKTTYPE_SCTP 0x00000400 /* SCTP hdr present */
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#define E1000_RXDADV_PKTTYPE_NFS 0x00000800 /* NFS hdr present */
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/* Transmit Descriptor - Advanced */
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union e1000_adv_tx_desc {
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struct {
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u64 buffer_addr; /* Address of descriptor's data buf */
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u32 cmd_type_len;
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u32 olinfo_status;
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} read;
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struct {
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u64 rsvd; /* Reserved */
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u32 nxtseq_seed;
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u32 status;
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} wb;
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};
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/* Adv Transmit Descriptor Config Masks */
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#define E1000_ADVTXD_DTYP_CTXT 0x00200000 /* Advanced Context Descriptor */
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#define E1000_ADVTXD_DTYP_DATA 0x00300000 /* Advanced Data Descriptor */
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#define E1000_ADVTXD_DCMD_EOP 0x01000000 /* End of Packet */
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#define E1000_ADVTXD_DCMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */
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#define E1000_ADVTXD_DCMD_RDMA 0x04000000 /* RDMA */
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#define E1000_ADVTXD_DCMD_RS 0x08000000 /* Report Status */
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#define E1000_ADVTXD_DCMD_DDTYP_ISCSI 0x10000000 /* DDP hdr type or iSCSI */
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#define E1000_ADVTXD_DCMD_DEXT 0x20000000 /* Descriptor extension (1=Adv) */
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#define E1000_ADVTXD_DCMD_VLE 0x40000000 /* VLAN pkt enable */
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#define E1000_ADVTXD_DCMD_TSE 0x80000000 /* TCP Seg enable */
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#define E1000_ADVTXD_MAC_LINKSEC 0x00040000 /* Apply LinkSec on packet */
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#define E1000_ADVTXD_MAC_TSTAMP 0x00080000 /* IEEE1588 Timestamp packet */
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#define E1000_ADVTXD_STAT_SN_CRC 0x00000002 /* NXTSEQ/SEED present in WB */
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#define E1000_ADVTXD_IDX_SHIFT 4 /* Adv desc Index shift */
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#define E1000_ADVTXD_POPTS_EOM 0x00000400 /* Enable L bit in RDMA DDP hdr */
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#define E1000_ADVTXD_POPTS_ISCO_1ST 0x00000000 /* 1st TSO of iSCSI PDU */
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#define E1000_ADVTXD_POPTS_ISCO_MDL 0x00000800 /* Middle TSO of iSCSI PDU */
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#define E1000_ADVTXD_POPTS_ISCO_LAST 0x00001000 /* Last TSO of iSCSI PDU */
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#define E1000_ADVTXD_POPTS_ISCO_FULL 0x00001800 /* 1st&Last TSO-full iSCSI PDU*/
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#define E1000_ADVTXD_POPTS_IPSEC 0x00000400 /* IPSec offload request */
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#define E1000_ADVTXD_PAYLEN_SHIFT 14 /* Adv desc PAYLEN shift */
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/* Context descriptors */
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struct e1000_adv_tx_context_desc {
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u32 vlan_macip_lens;
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u32 seqnum_seed;
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u32 type_tucmd_mlhl;
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u32 mss_l4len_idx;
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};
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#define E1000_ADVTXD_MACLEN_SHIFT 9 /* Adv ctxt desc mac len shift */
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#define E1000_ADVTXD_VLAN_SHIFT 16 /* Adv ctxt vlan tag shift */
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#define E1000_ADVTXD_TUCMD_IPV4 0x00000400 /* IP Packet Type: 1=IPv4 */
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#define E1000_ADVTXD_TUCMD_IPV6 0x00000000 /* IP Packet Type: 0=IPv6 */
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#define E1000_ADVTXD_TUCMD_L4T_UDP 0x00000000 /* L4 Packet TYPE of UDP */
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#define E1000_ADVTXD_TUCMD_L4T_TCP 0x00000800 /* L4 Packet TYPE of TCP */
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#define E1000_ADVTXD_TUCMD_IPSEC_TYPE_ESP 0x00002000 /* IPSec Type ESP */
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/* IPSec Encrypt Enable for ESP */
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#define E1000_ADVTXD_TUCMD_IPSEC_ENCRYPT_EN 0x00004000
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#define E1000_ADVTXD_TUCMD_MKRREQ 0x00002000 /* Req requires Markers and CRC */
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#define E1000_ADVTXD_L4LEN_SHIFT 8 /* Adv ctxt L4LEN shift */
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#define E1000_ADVTXD_MSS_SHIFT 16 /* Adv ctxt MSS shift */
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/* Adv ctxt IPSec SA IDX mask */
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#define E1000_ADVTXD_IPSEC_SA_INDEX_MASK 0x000000FF
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/* Adv ctxt IPSec ESP len mask */
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#define E1000_ADVTXD_IPSEC_ESP_LEN_MASK 0x000000FF
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/* Additional Transmit Descriptor Control definitions */
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#define E1000_TXDCTL_QUEUE_ENABLE 0x02000000 /* Enable specific Tx Queue */
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#define E1000_TXDCTL_SWFLSH 0x04000000 /* Tx Desc. write-back flushing */
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/* Tx Queue Arbitration Priority 0=low, 1=high */
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#define E1000_TXDCTL_PRIORITY 0x08000000
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/* Additional Receive Descriptor Control definitions */
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#define E1000_RXDCTL_QUEUE_ENABLE 0x02000000 /* Enable specific Rx Queue */
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#define E1000_RXDCTL_SWFLSH 0x04000000 /* Rx Desc. write-back flushing */
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/* Direct Cache Access (DCA) definitions */
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#define E1000_DCA_CTRL_DCA_ENABLE 0x00000000 /* DCA Enable */
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#define E1000_DCA_CTRL_DCA_DISABLE 0x00000001 /* DCA Disable */
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#define E1000_DCA_CTRL_DCA_MODE_CB1 0x00 /* DCA Mode CB1 */
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#define E1000_DCA_CTRL_DCA_MODE_CB2 0x02 /* DCA Mode CB2 */
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#define E1000_DCA_RXCTRL_CPUID_MASK 0x0000001F /* Rx CPUID Mask */
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#define E1000_DCA_RXCTRL_DESC_DCA_EN (1 << 5) /* DCA Rx Desc enable */
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#define E1000_DCA_RXCTRL_HEAD_DCA_EN (1 << 6) /* DCA Rx Desc header enable */
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#define E1000_DCA_RXCTRL_DATA_DCA_EN (1 << 7) /* DCA Rx Desc payload enable */
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#define E1000_DCA_TXCTRL_CPUID_MASK 0x0000001F /* Tx CPUID Mask */
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#define E1000_DCA_TXCTRL_DESC_DCA_EN (1 << 5) /* DCA Tx Desc enable */
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#define E1000_DCA_TXCTRL_TX_WB_RO_EN (1 << 11) /* Tx Desc writeback RO bit */
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#endif
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