drivers/net/igb/e1000_82575.h

   1 /*******************************************************************************
   2
   3   Intel(R) Gigabit Ethernet Linux driver
   4   Copyright(c) 2007 - 2008 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  24   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  25
  26 *******************************************************************************/
  27
  28 #ifndef _E1000_82575_H_
  29 #define _E1000_82575_H_
  30
  31 u32 igb_translate_register_82576(u32 reg);
  32 void igb_update_mc_addr_list_82575(struct e1000_hw*, u8*, u32, u32, u32);
  33 extern void igb_shutdown_fiber_serdes_link_82575(struct e1000_hw *hw);
  34 extern void igb_rx_fifo_flush_82575(struct e1000_hw *hw);
  35
  36 #define E1000_RAR_ENTRIES_82575   16
  37 #define E1000_RAR_ENTRIES_82576   24
  38
  39 /* SRRCTL bit definitions */
  40 #define E1000_SRRCTL_BSIZEPKT_SHIFT                     10 /* Shift _right_ */
  41 #define E1000_SRRCTL_BSIZEHDRSIZE_SHIFT                 2  /* Shift _left_ */
  42 #define E1000_SRRCTL_DESCTYPE_ADV_ONEBUF                0x02000000
  43 #define E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS          0x0A000000
  44
  45 #define E1000_MRQC_ENABLE_RSS_4Q            0x00000002
  46 #define E1000_MRQC_RSS_FIELD_IPV4_UDP       0x00400000
  47 #define E1000_MRQC_RSS_FIELD_IPV6_UDP       0x00800000
  48 #define E1000_MRQC_RSS_FIELD_IPV6_UDP_EX    0x01000000
  49
  50 #define E1000_EICR_TX_QUEUE ( \
  51     E1000_EICR_TX_QUEUE0 |    \
  52     E1000_EICR_TX_QUEUE1 |    \
  53     E1000_EICR_TX_QUEUE2 |    \
  54     E1000_EICR_TX_QUEUE3)
  55
  56 #define E1000_EICR_RX_QUEUE ( \
  57     E1000_EICR_RX_QUEUE0 |    \
  58     E1000_EICR_RX_QUEUE1 |    \
  59     E1000_EICR_RX_QUEUE2 |    \
  60     E1000_EICR_RX_QUEUE3)
  61
  62 #define E1000_EIMS_RX_QUEUE E1000_EICR_RX_QUEUE
  63 #define E1000_EIMS_TX_QUEUE E1000_EICR_TX_QUEUE
  64
  65 /* Immediate Interrupt Rx (A.K.A. Low Latency Interrupt) */
  66
  67 /* Receive Descriptor - Advanced */
  68 union e1000_adv_rx_desc {
  69         struct {
  70                 __le64 pkt_addr;             /* Packet buffer address */
  71                 __le64 hdr_addr;             /* Header buffer address */
  72         } read;
  73         struct {
  74                 struct {
  75                         struct {
  76                                 __le16 pkt_info;   /* RSS type, Packet type */
  77                                 __le16 hdr_info;   /* Split Header,
  78                                                     * header buffer length */
  79                         } lo_dword;
  80                         union {
  81                                 __le32 rss;          /* RSS Hash */
  82                                 struct {
  83                                         __le16 ip_id;    /* IP id */
  84                                         __le16 csum;     /* Packet Checksum */
  85                                 } csum_ip;
  86                         } hi_dword;
  87                 } lower;
  88                 struct {
  89                         __le32 status_error;     /* ext status/error */
  90                         __le16 length;           /* Packet length */
  91                         __le16 vlan;             /* VLAN tag */
  92                 } upper;
  93         } wb;  /* writeback */
  94 };
  95
  96 #define E1000_RXDADV_HDRBUFLEN_MASK      0x7FE0
  97 #define E1000_RXDADV_HDRBUFLEN_SHIFT     5
  98
  99 /* RSS Hash results */
 100
 101 /* RSS Packet Types as indicated in the receive descriptor */
 102
 103 /* Transmit Descriptor - Advanced */
 104 union e1000_adv_tx_desc {
 105         struct {
 106                 __le64 buffer_addr;    /* Address of descriptor's data buf */
 107                 __le32 cmd_type_len;
 108                 __le32 olinfo_status;
 109         } read;
 110         struct {
 111                 __le64 rsvd;       /* Reserved */
 112                 __le32 nxtseq_seed;
 113                 __le32 status;
 114         } wb;
 115 };
 116
 117 /* Adv Transmit Descriptor Config Masks */
 118 #define E1000_ADVTXD_DTYP_CTXT    0x00200000 /* Advanced Context Descriptor */
 119 #define E1000_ADVTXD_DTYP_DATA    0x00300000 /* Advanced Data Descriptor */
 120 #define E1000_ADVTXD_DCMD_IFCS    0x02000000 /* Insert FCS (Ethernet CRC) */
 121 #define E1000_ADVTXD_DCMD_DEXT    0x20000000 /* Descriptor extension (1=Adv) */
 122 #define E1000_ADVTXD_DCMD_VLE     0x40000000 /* VLAN pkt enable */
 123 #define E1000_ADVTXD_DCMD_TSE     0x80000000 /* TCP Seg enable */
 124 #define E1000_ADVTXD_PAYLEN_SHIFT    14 /* Adv desc PAYLEN shift */
 125
 126 /* Context descriptors */
 127 struct e1000_adv_tx_context_desc {
 128         __le32 vlan_macip_lens;
 129         __le32 seqnum_seed;
 130         __le32 type_tucmd_mlhl;
 131         __le32 mss_l4len_idx;
 132 };
 133
 134 #define E1000_ADVTXD_MACLEN_SHIFT    9  /* Adv ctxt desc mac len shift */
 135 #define E1000_ADVTXD_TUCMD_IPV4    0x00000400  /* IP Packet Type: 1=IPv4 */
 136 #define E1000_ADVTXD_TUCMD_L4T_TCP 0x00000800  /* L4 Packet TYPE of TCP */
 137 /* IPSec Encrypt Enable for ESP */
 138 #define E1000_ADVTXD_L4LEN_SHIFT     8  /* Adv ctxt L4LEN shift */
 139 #define E1000_ADVTXD_MSS_SHIFT      16  /* Adv ctxt MSS shift */
 140 /* Adv ctxt IPSec SA IDX mask */
 141 /* Adv ctxt IPSec ESP len mask */
 142
 143 /* Additional Transmit Descriptor Control definitions */
 144 #define E1000_TXDCTL_QUEUE_ENABLE  0x02000000 /* Enable specific Tx Queue */
 145 /* Tx Queue Arbitration Priority 0=low, 1=high */
 146
 147 /* Additional Receive Descriptor Control definitions */
 148 #define E1000_RXDCTL_QUEUE_ENABLE  0x02000000 /* Enable specific Rx Queue */
 149
 150 /* Direct Cache Access (DCA) definitions */
 151 #define E1000_DCA_CTRL_DCA_ENABLE  0x00000000 /* DCA Enable */
 152 #define E1000_DCA_CTRL_DCA_DISABLE 0x00000001 /* DCA Disable */
 153
 154 #define E1000_DCA_CTRL_DCA_MODE_CB1 0x00 /* DCA Mode CB1 */
 155 #define E1000_DCA_CTRL_DCA_MODE_CB2 0x02 /* DCA Mode CB2 */
 156
 157 #define E1000_DCA_RXCTRL_CPUID_MASK 0x0000001F /* Rx CPUID Mask */
 158 #define E1000_DCA_RXCTRL_DESC_DCA_EN (1 << 5) /* DCA Rx Desc enable */
 159 #define E1000_DCA_RXCTRL_HEAD_DCA_EN (1 << 6) /* DCA Rx Desc header enable */
 160 #define E1000_DCA_RXCTRL_DATA_DCA_EN (1 << 7) /* DCA Rx Desc payload enable */
 161
 162 #define E1000_DCA_TXCTRL_CPUID_MASK 0x0000001F /* Tx CPUID Mask */
 163 #define E1000_DCA_TXCTRL_DESC_DCA_EN (1 << 5) /* DCA Tx Desc enable */
 164 #define E1000_DCA_TXCTRL_TX_WB_RO_EN (1 << 11) /* Tx Desc writeback RO bit */
 165
 166 /* Additional DCA related definitions, note change in position of CPUID */
 167 #define E1000_DCA_TXCTRL_CPUID_MASK_82576 0xFF000000 /* Tx CPUID Mask */
 168 #define E1000_DCA_RXCTRL_CPUID_MASK_82576 0xFF000000 /* Rx CPUID Mask */
 169 #define E1000_DCA_TXCTRL_CPUID_SHIFT 24 /* Tx CPUID now in the last byte */
 170 #define E1000_DCA_RXCTRL_CPUID_SHIFT 24 /* Rx CPUID now in the last byte */
 171
 172 #endif