drivers/net/myri10ge/myri10ge_mcp.h

   1 #ifndef __MYRI10GE_MCP_H__
   2 #define __MYRI10GE_MCP_H__
   3
   4 #define MXGEFW_VERSION_MAJOR    1
   5 #define MXGEFW_VERSION_MINOR    4
   6
   7 /* 8 Bytes */
   8 struct mcp_dma_addr {
   9         u32 high;
  10         u32 low;
  11 };
  12
  13 /* 4 Bytes */
  14 struct mcp_slot {
  15         u16 checksum;
  16         u16 length;
  17 };
  18
  19 /* 64 Bytes */
  20 struct mcp_cmd {
  21         u32 cmd;
  22         u32 data0;              /* will be low portion if data > 32 bits */
  23         /* 8 */
  24         u32 data1;              /* will be high portion if data > 32 bits */
  25         u32 data2;              /* currently unused.. */
  26         /* 16 */
  27         struct mcp_dma_addr response_addr;
  28         /* 24 */
  29         u8 pad[40];
  30 };
  31
  32 /* 8 Bytes */
  33 struct mcp_cmd_response {
  34         u32 data;
  35         u32 result;
  36 };
  37
  38 /*
  39  * flags used in mcp_kreq_ether_send_t:
  40  *
  41  * The SMALL flag is only needed in the first segment. It is raised
  42  * for packets that are total less or equal 512 bytes.
  43  *
  44  * The CKSUM flag must be set in all segments.
  45  *
  46  * The PADDED flags is set if the packet needs to be padded, and it
  47  * must be set for all segments.
  48  *
  49  * The  MXGEFW_FLAGS_ALIGN_ODD must be set if the cumulative
  50  * length of all previous segments was odd.
  51  */
  52
  53 #define MXGEFW_FLAGS_SMALL      0x1
  54 #define MXGEFW_FLAGS_TSO_HDR    0x1
  55 #define MXGEFW_FLAGS_FIRST      0x2
  56 #define MXGEFW_FLAGS_ALIGN_ODD  0x4
  57 #define MXGEFW_FLAGS_CKSUM      0x8
  58 #define MXGEFW_FLAGS_TSO_LAST   0x8
  59 #define MXGEFW_FLAGS_NO_TSO     0x10
  60 #define MXGEFW_FLAGS_TSO_CHOP   0x10
  61 #define MXGEFW_FLAGS_TSO_PLD    0x20
  62
  63 #define MXGEFW_SEND_SMALL_SIZE  1520
  64 #define MXGEFW_MAX_MTU          9400
  65
  66 union mcp_pso_or_cumlen {
  67         u16 pseudo_hdr_offset;
  68         u16 cum_len;
  69 };
  70
  71 #define MXGEFW_MAX_SEND_DESC 12
  72 #define MXGEFW_PAD          2
  73
  74 /* 16 Bytes */
  75 struct mcp_kreq_ether_send {
  76         u32 addr_high;
  77         u32 addr_low;
  78         u16 pseudo_hdr_offset;
  79         u16 length;
  80         u8 pad;
  81         u8 rdma_count;
  82         u8 cksum_offset;        /* where to start computing cksum */
  83         u8 flags;               /* as defined above */
  84 };
  85
  86 /* 8 Bytes */
  87 struct mcp_kreq_ether_recv {
  88         u32 addr_high;
  89         u32 addr_low;
  90 };
  91
  92 /* Commands */
  93
  94 #define MXGEFW_BOOT_HANDOFF     0xfc0000
  95 #define MXGEFW_BOOT_DUMMY_RDMA  0xfc01c0
  96
  97 #define MXGEFW_ETH_CMD          0xf80000
  98 #define MXGEFW_ETH_SEND_4       0x200000
  99 #define MXGEFW_ETH_SEND_1       0x240000
 100 #define MXGEFW_ETH_SEND_2       0x280000
 101 #define MXGEFW_ETH_SEND_3       0x2c0000
 102 #define MXGEFW_ETH_RECV_SMALL   0x300000
 103 #define MXGEFW_ETH_RECV_BIG     0x340000
 104
 105 #define MXGEFW_ETH_SEND(n)              (0x200000 + (((n) & 0x03) * 0x40000))
 106 #define MXGEFW_ETH_SEND_OFFSET(n)       (MXGEFW_ETH_SEND(n) - MXGEFW_ETH_SEND_4)
 107
 108 enum myri10ge_mcp_cmd_type {
 109         MXGEFW_CMD_NONE = 0,
 110         /* Reset the mcp, it is left in a safe state, waiting
 111          * for the driver to set all its parameters */
 112         MXGEFW_CMD_RESET,
 113
 114         /* get the version number of the current firmware..
 115          * (may be available in the eeprom strings..? */
 116         MXGEFW_GET_MCP_VERSION,
 117
 118         /* Parameters which must be set by the driver before it can
 119          * issue MXGEFW_CMD_ETHERNET_UP. They persist until the next
 120          * MXGEFW_CMD_RESET is issued */
 121
 122         MXGEFW_CMD_SET_INTRQ_DMA,
 123         MXGEFW_CMD_SET_BIG_BUFFER_SIZE, /* in bytes, power of 2 */
 124         MXGEFW_CMD_SET_SMALL_BUFFER_SIZE,       /* in bytes */
 125
 126         /* Parameters which refer to lanai SRAM addresses where the
 127          * driver must issue PIO writes for various things */
 128
 129         MXGEFW_CMD_GET_SEND_OFFSET,
 130         MXGEFW_CMD_GET_SMALL_RX_OFFSET,
 131         MXGEFW_CMD_GET_BIG_RX_OFFSET,
 132         MXGEFW_CMD_GET_IRQ_ACK_OFFSET,
 133         MXGEFW_CMD_GET_IRQ_DEASSERT_OFFSET,
 134
 135         /* Parameters which refer to rings stored on the MCP,
 136          * and whose size is controlled by the mcp */
 137
 138         MXGEFW_CMD_GET_SEND_RING_SIZE,  /* in bytes */
 139         MXGEFW_CMD_GET_RX_RING_SIZE,    /* in bytes */
 140
 141         /* Parameters which refer to rings stored in the host,
 142          * and whose size is controlled by the host.  Note that
 143          * all must be physically contiguous and must contain
 144          * a power of 2 number of entries.  */
 145
 146         MXGEFW_CMD_SET_INTRQ_SIZE,      /* in bytes */
 147
 148         /* command to bring ethernet interface up.  Above parameters
 149          * (plus mtu & mac address) must have been exchanged prior
 150          * to issuing this command  */
 151         MXGEFW_CMD_ETHERNET_UP,
 152
 153         /* command to bring ethernet interface down.  No further sends
 154          * or receives may be processed until an MXGEFW_CMD_ETHERNET_UP
 155          * is issued, and all interrupt queues must be flushed prior
 156          * to ack'ing this command */
 157
 158         MXGEFW_CMD_ETHERNET_DOWN,
 159
 160         /* commands the driver may issue live, without resetting
 161          * the nic.  Note that increasing the mtu "live" should
 162          * only be done if the driver has already supplied buffers
 163          * sufficiently large to handle the new mtu.  Decreasing
 164          * the mtu live is safe */
 165
 166         MXGEFW_CMD_SET_MTU,
 167         MXGEFW_CMD_GET_INTR_COAL_DELAY_OFFSET,  /* in microseconds */
 168         MXGEFW_CMD_SET_STATS_INTERVAL,  /* in microseconds */
 169         MXGEFW_CMD_SET_STATS_DMA_OBSOLETE,      /* replaced by SET_STATS_DMA_V2 */
 170
 171         MXGEFW_ENABLE_PROMISC,
 172         MXGEFW_DISABLE_PROMISC,
 173         MXGEFW_SET_MAC_ADDRESS,
 174
 175         MXGEFW_ENABLE_FLOW_CONTROL,
 176         MXGEFW_DISABLE_FLOW_CONTROL,
 177
 178         /* do a DMA test
 179          * data0,data1 = DMA address
 180          * data2       = RDMA length (MSH), WDMA length (LSH)
 181          * command return data = repetitions (MSH), 0.5-ms ticks (LSH)
 182          */
 183         MXGEFW_DMA_TEST,
 184
 185         MXGEFW_ENABLE_ALLMULTI,
 186         MXGEFW_DISABLE_ALLMULTI,
 187
 188         /* returns MXGEFW_CMD_ERROR_MULTICAST
 189          * if there is no room in the cache
 190          * data0,MSH(data1) = multicast group address */
 191         MXGEFW_JOIN_MULTICAST_GROUP,
 192         /* returns MXGEFW_CMD_ERROR_MULTICAST
 193          * if the address is not in the cache,
 194          * or is equal to FF-FF-FF-FF-FF-FF
 195          * data0,MSH(data1) = multicast group address */
 196         MXGEFW_LEAVE_MULTICAST_GROUP,
 197         MXGEFW_LEAVE_ALL_MULTICAST_GROUPS,
 198
 199         MXGEFW_CMD_SET_STATS_DMA_V2,
 200         /* data0, data1 = bus addr,
 201          * data2 = sizeof(struct mcp_irq_data) from driver point of view, allows
 202          * adding new stuff to mcp_irq_data without changing the ABI */
 203 };
 204
 205 enum myri10ge_mcp_cmd_status {
 206         MXGEFW_CMD_OK = 0,
 207         MXGEFW_CMD_UNKNOWN,
 208         MXGEFW_CMD_ERROR_RANGE,
 209         MXGEFW_CMD_ERROR_BUSY,
 210         MXGEFW_CMD_ERROR_EMPTY,
 211         MXGEFW_CMD_ERROR_CLOSED,
 212         MXGEFW_CMD_ERROR_HASH_ERROR,
 213         MXGEFW_CMD_ERROR_BAD_PORT,
 214         MXGEFW_CMD_ERROR_RESOURCES,
 215         MXGEFW_CMD_ERROR_MULTICAST
 216 };
 217
 218 #define MXGEFW_OLD_IRQ_DATA_LEN 40
 219
 220 struct mcp_irq_data {
 221         /* add new counters at the beginning */
 222         u32 future_use[5];
 223         u32 dropped_multicast_filtered;
 224         /* 40 Bytes */
 225         u32 send_done_count;
 226
 227         u32 link_up;
 228         u32 dropped_link_overflow;
 229         u32 dropped_link_error_or_filtered;
 230         u32 dropped_runt;
 231         u32 dropped_overrun;
 232         u32 dropped_no_small_buffer;
 233         u32 dropped_no_big_buffer;
 234         u32 rdma_tags_available;
 235
 236         u8 tx_stopped;
 237         u8 link_down;
 238         u8 stats_updated;
 239         u8 valid;
 240 };
 241
 242 #endif                          /* __MYRI10GE_MCP_H__ */